major oxide, minor oxide, trace element, rare-earth...

Division of Geological & Geophysical Surveys

RAW-DATA FILE 2002-1

MAJOR OXIDE, MINOR OXIDE, TRACE ELEMENT, RARE-EARTH ELEMENT, TRACE GEOCHEMICAL, AND COAL QUALITY DATA FROM ROCKS COLLECTED IN EAGLE AND TANACROSS QUADRANGLES, ALASKA

IN 1999, 2000, and 2001

by

D.J. Szumigala, M.B. Werdon, R.J. Newberry, J.E. Athey, K.H. Clautice, R.L. Flynn, J.C. Grady, W.C. Munly, and M.R. Johnson

$17.00

June 2002

THIS DATA COMPILATION HAS NOT BEEN REVIEWED FOR TECHNICAL CONTENT OR FOR CONFORMITY TO

THE PUBLICATION STANDARDS OF DGGS

Released by

STATE OF ALASKA DEPARTMENT OF NATURAL RESOURCES Division of Geological & Geophysical Surveys

794 University Avenue, Suite 200 Fairbanks, Alaska 99709-3645

I PAGE

INTRODUCTION .............................................................................................................................................. 1 ANALYTICAL METHODS ........................................................................................................................... 1

TABLES

TABLE 1. LOCATION AND DESCRIPTION OF ROCK SAMPLES COLLECTED IN THE EAGLE AND ........ TANACROSS QUADRANGLES FOR TRACE ELEMENT GEOCHEMICAL ANALYSES.

TABLE 2. CONCENTRATION OF TRACE ELEMENTS IN ROCK SAMPLES COLLECTED IN THE EAGLE AND TANACROSS QUADRANGLES ...............................................................................

TABLE 3. LOCATION AND DESCRIPTION OF ROCK SAMPLES COLLECTED IN THE EAGLE AND TANACROSS QUADRANGLES FOR MAJOR OXIDE, MINOR OXIDE, TRACE, AND RARE- EARTH ELEMENT ANALYSES .......................................................................................................

TABLE 4. CONCENTRATION OF MAJOR OXIDES, MINOR OXIDES, AND TRACE ELEMENTS IN ROCK SAMPLES COLLECTED IN THE EAGLE AND TANACROSS QUADRANGLES. .........

TABLE 5. CONCENTRATION OF RARE-EARTH ELEMENTS IN ROCK SAMPLES COLLECTED IN THE EAGLE AND TANACROSS QUADRANGLES ......................................................................

TABLE 6. PROXIMATE AND ULTIMATE COAL ANALYSES FROM ROCK SAMPLE COLLECTED IN THE EAGLE A-2 QUADRANGLE ..............................................................................................

TABLE 7. DETECTION LIMITS FOR TRACE-ELEMENT GEOCHEMICAL ANALYSES ...........................

TABLE 8. DETECTION LIMITS FOR MAJOR-OXIDE, MINOR-OXIDE, TRACE, AND RARE-EARTH ELEMENT ANALYSES ....................................................................................................................

TABLE 9. DETECTION LIMITS FOR RARE-EARTH ELEMENT ANALYSES ............................................

SHEETS

SHEET 1. LOCATION MAP OF ROCK SAMPLES ANALYZED FOR TRACE ELEMENT GEOCHEMISTRY, AND MAJOR-OXIDES, MINOR OXIDES, TRACE ELEMENTS, AND (OR) RARE EARTH ELEMENTS, AND COAL QUALITY, EAGLE A-1, A-2, A-3, B-1, AND B-2 QUADRANGLES AND TANACROSS D-1 QUADRANGLE, ALASKA IN 1999,2000, AND 200 1, 1 :63,360 SCALE, 1 SHEET (IN POCKET)

Note: This report (including all analytical data, tables, and map sheets) is available in digital format from the DGGS web site (http://wwwdggs.dnr.state.ak.us) at no charge. The digital data are available as PDF files and Excel spreadsheets.

MAJOR OXIDE, MINOR OXIDE, TRACE ELEMENT, RARE-EARTH ELEMENT, TRACE GEOCHEMICAL AND COAL QUALITY DATA FROM ROCKS COLLECTED IN THE

EAGLE AND TANACROSS QUADRANGLES, ALASKA IN 1999,2000, and 2001

D.J. SZUMIGALA', M.B. WERDON', R.J. NEW BERRY^, J.E. ATHEY', KH. CLAUTICE', R.L. FLYNN~, J.C. GRADY'. W.C. MUNLY', AND M.R. JOHN SON^

INTRODUCTION

Mineral resource personnel from the Alaska Division of Geological & Geophysical Surveys carried out a geological field survey, including mapping and sampling of Eagle and Tanacross quadrangles, Alaska fiom June 1999 to July 2001. The fieldwork provides basic information critical to building an understanding of Alaska's geology and is part of an integrated program of airborne geophysical surveys followed by geological mapping programs. During 2001, 65 rock samples were collected for geochemical trace-element analysis, apd 145 samples were collected for whole rock (major and minor oxides, and petrogenetically important trace and (or) rare earth element data) analysis. This report also includes 18 rock samples collected for geochemical trace-element analysis, 59 rock samples collected for whole rock analysis, and 1 coal analysis collected during 1999 and 2000 that were not previously released in DGGS reports (Raw-Data-File 2000-1 and Raw-Data-File 2000-4). The locations of all samples listed in the tables of the current report are shown on Sheet 1. Location data (in UTM coordinates with a Clark 1866, NAD27, UTM zone 7 projection), descriptions, and analytical results for each sample are tabulated in tables 1-6.

ANALYTICAL METHODS

Chemex Labs, Inc performed all trace-element geochemical analyses in this report. Rock samples were crushed so that at least 70 percent of the material passed through a -10 (2 mm) mesh screen. A 200-gram, representative split of the sample was then taken using a riffle splitter. The 200-gram sample was then pulverized in a chrome steel ring mill so that 95 percent of the sample passed through a -150 (106 micron) mesh screen. DGGS also submitted geochemical standards at an approximate rate of one pulp per fifteen unknowns, and crushed granite and basalt standards were submitted at an approximate rate of one whole rock standard per fifteen unknowns.

Gold was analyzed on a 30-gram representative sample split using Fire Assay (FA) and Atomic Absorption Spectroscopy (AAS) methods. Most trace elements were analyzed by the Inductively Coupled Plasma - Atomic Emission Spectroscopy (ICP-AES) methods after nitric aqua regia digestion. Platinum and palladium were analyzed by the Fire Assay - Inductively Coupled Plasma (FA-ICP) method. Analytical detection limits are tabulated for the geochemical analyses in table 7.

Chemex Labs, Inc performed all whole rock analyses in this report. Major and minor element oxides were determined by XRF methods following a metaborate fusion. Trace elements (Ba, Nb, Rb, Sr, Y, and Zr) were also analyzed using XRF methods on a pressed pellet. Rare Earth elements were analyzed using Inductively Coupled Plasma - Mass spectroscopy after fusing with lithium metaborate. Analytical detection limits for the major-oxide, minor-oxide, trace, and rare-earth element analyses (XRF method) are tabulated in table 8.

The coal sample was analyzed by Geochemical Testing, a division of Energy Center, Inc. The sample submitted to the lab weighed approximately five pounds and represented a composite of several coal layers within Tertiary sedimentary rocks. For practical purposes, the chemical composition of coal is given in terms of its "proximate" analysis and by its "ultimate" or elemental composition. Proximate analysis determines moisture content, volatile matter content (V.M.), ash and, indirectly, the fixed carbon content (F.C.) which is expressed as a percentage of the dry coal mass and defined by: %F.C.= 100 - (% V.M. + % ash) Ultimate or elemental analysis involves a quantitative determination of the percentage of carbon, hydrogen, nitrogen and organic sulfur with oxygen usually determined by difference. Specific energy determination determines the heat energy produced from the combustion of each gram of coal. Neither proximate nor ultimate analysis gives much information about coal structure but both give information that, in light of experience can be directly correlated with the behavior of coal in most industrial processes. Results are given in table-6. Analytical detection limits for the rare-earth element analyses determined by ICP-MS are shown in table 9. Affiliations I Alaska Division of Geological & Geophysical Surveys University of Alaska Fairbanks

- - - - --

Table 1. Location and description of rock samples collected in the Eagle and Tanacross quadrangles for metal and trace element geochemical analyses.

UTM N

7107903 7096775 7099341 7101637 7101973 7100453 7103347 7108461 7094963 7094453 7094453 7097183 7097583 7098640 7097039 7094051 7107719 7105470 7109533 71 12584 7122483 7122483 71 11925 7098854' 7101406 71 00300 71 10309 71 18861 71 18869 71 13359 71 13541 71 13993 71 13977 71 10688 71 10688 71 11072 71 12905 71 13663 71 12774 71 13074 7124485

SAMPLE

00RF023C 00RF86.1 B 0 0 ~ ~ 1 8 7 ~ 00RF217~ 00RF222~ 00RF246B 00RF333 00RF405B 00RF422 0 0 R ~ 4 6 3 ~ 00RF463C 00RF484B 00RF490A 00RF507B 00RF510 00RF520B 00RF552 00RF607 01 JEA56A 01 JEA207A 01 JEA219A 01JEA219E 01 JEA373A O ~ K C O ~ B 01 KC6B 01 KC30B 01 KC43A 01 K C ~ ~ B 0 1 ~ ~ 5 5 6 0 1 ~ ~ 5 9 ~ 01 KCGOB -- --- - --

01 KCGIB 01KC62A 01KC66A 01 K c 6 6 ~ 01KC68A 01 KC69B -

01 KC70B 01KC76B 01KC77B 01KC89~

Description

Vuggy, fine-grained quartz breccia with abundant iron-oxide stain Dark gray, coarse-grained biotite-hornblende gneiss with disseminated pyrite Bluish purple to purplish black magnetite-serpentine rock with magnetite layers - . up to 4 - mm wide. Bright green, fine-grained serpentinized-ultramafic with iron oxide stain.. ~lagioclase hornblendite with equant hornblende up to lcm, iron oxide and sparse calcite veinlets Select sample of dark gray chromitite with submetallic luster k iron oxide, >95% chromite up to >Icm. Carbonaceous-white mica-quartz schist and quartzite with abundant disseminated pyrite and iron oxide. Select sample of gray, fine grained quartz-calcite vein with green specks, sparse pyrite and abundant iron oxide. Select sample of light gray, quartz-calcite vein with iron-oxides and minor disseminated molybdenum flakes. very coarse grained, unfoliated biotite hornblendite with iron oxide staining. Dark gray, very coarse-grained, unfoliated hornblendite with abundant disseminated pyrite and iron oxide. Dark gray, carbonaceous-biotite-quartz schist with disseminated pyrite up to 5 mm diameter. Carbonaceous white mica-qu* schist,-and quartz breccia with very abundant iron oxide. Select sample of quartz breccia with very abundant iron oxide. Medium to coarse grained marble * fuchsite with sparse disseminated pyrite and iron oxide after pyrite Very coarse-grained, tourmaline granite orthogneiss; some muscovite and abundant tourmaline up to 2cm long. Medrum-grarned, chlorite-white mica-quartz schist with iron oxide after pyr~te up to 1 cm diameter along fol~ation. Dark gray, carbonaceous-white mica-quartz-fuchsite schist with abundant iron oxide after pyrite along foliation Grab sample of biotite-quartz-feldspar gneiss with pyrite-bearing pegmatite or quartz vein. Select sample of highly iron-oxide stained breccia?, fault gouge or gossanous material with black hematite?. Select sample of highly iron-oxide stained, quartz-(carbonate) vein with occasional fine-grained gray metal specks. Grab sample of fractured quartz veins in gneiss or silicified gneiss with 5 percent fine-grained pyrite. Grab sample of biotite-quartz-feldspar gneiss with trace pyrite on fracture. Select sample of a 8 inch thick pod of leucocratic gneiss with minordisseminated pyrite, possibly other ?sulfides? Select sample of most iron-oxide stained quartz boudined, calcareous chlorite-muscovite-feldspar-quartz gneiss. Select sample of iron-oxide stained garnet-chlorite-quartz-(feldspar?) gneiss with pyrite near 1 foot-wide quartz vein. Grab sample of aplitic pegmatite with occasional orthogneiss. Select sample of light orange-colored portion of 4 foot diameter white quartz boulder

select sample of quartz +chlorite vein. Fair amount of quartz veTni6 %I the area. Follow this one for 20 ft. Select sample of one-inch thick pegmatite dike. ~nastamosing pegmatite dikes in biotite granodiorite ranging from 1 to 8 inches thick. - - - - - - - -- - -

Select sample of pyritic quartz veins thatcrosscuifoliationcrosscutfoliati of biotite granodiorite. Grab sample of anastomosing pematitic veins that range up to several feet in thickness. Select sample of finely laminated quartzite with some quartz veins and finely disseminated pyrite along joints. Medium- to coarse-grained amphibolitein contact with thinly laminated quartzite.

-

Gray quartzite with minor brecciation and some quartz veining, also slickensides - and - - very - .. - jointed. Pyritic, foliated hornblende-biotite granodiorite dike crosscutting foliation of marble. Aplitic pegmatite with trace pyrite. Select sample of quartz-carbonate veins from 1 to 5 cm wide in quartz-rich gneiss. Select sample of quartz-carbonate veins from 1 to 5 cm wide in amphibolite.

Select sample of 10-inch layer of pink marble within white marble. Possible small specks around silvery bleb.

UTM E

494403 492519 496803 495334 494624 494913 497580 496583 494759 496200 496200 497177 498781 498980 492405 499583 499764 497665 484866 490960 493707 493707 496068 479905 477939 488250 485839 488978 489527 494088 494073 494085~ 493982 494842 494842 494581 494095 4941 37 491610 491738 492777

Quadrangle

Eagle Tanacross

Eagle ~ a g l e Eagle Eagle Eagle Eagle

Tanacross ~anacros i Tanacross

Eagle Eagle Eagle Eagle

Tanacross Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle

- Eagle -.


' Eagle Eagle Eagle Eagle Eagle

A-1 D-1 A-1 A-1 A-1 A-I A-1 A-1 D-1 D-1 D-1 A-1 A-1 A-1 A-1 D-1 A-1 A-1 A1 A1 A1 A1 A1 A1 A1 A1 A1

' A1 -A1 A1 A1 A1 A1 A1 A1 . A1 -.

A1 A1 A1 A1 A1

-.

Table 1. Location and description of rock samples collected in the Eagle and Tanacross quadrangles for metal and trace element geochemical analyses.

Description

Select sample of gossanous, sheared, schistose gneiss with quartz veins containing arsenopyrite or stibnite. Marble with nearby vuggy quartz-carbonate breccia and quartz veins up to 1 cm widecutting quartz in breccia. Orange-colored, limonite stained whiteand tan layered quartzite and weathered feldspar. Select sample of quartz-pyrite veins up to 2 inches wide cutting argillically altered and brecciated gneiss Select sample of brecciated and vuggy quartz vein with fine-grained pyrite. Highly weathered and slightly porouslleached green and red skarnoid? with clear gray quartz stringers. Gray, foliated quartzite with 3 mm thick marble layers and mm-thick layers of actinolite-chlorite-pyrite-limonite. Gossaneous, limonite stained, brecciated rock with open fractures and quartz veining. ~imonite-stained, partially gossaneous,%ached high-grade metamorphic rock cut by thin quartz vein. Probable fault zone consisting of milky quartz vein and altered rock breccia, with limonite-filled vugs. Limonite-stained, leached, sericite-altered micaceous quartzite or schist with 1-2 mm diameter limonite spots. Select sample of l-foot wide milky quartz vein crosscutting foliation in biotite schist and - gneiss. Fne- to medium-grained quartzite with limonite staking. Select sample of most limonitelstained and sericite-rich bioitite schist and biotite-quartz-feldspar gneiss. Fractured white mica bearing quartzite with limonite stain along fractures. Limonite-stained rock, possibly dike or metadike with quartz in rock looking like foliation-parallel veins. Limonite-stained, siliceous, gossaneous rock cut by numerous quartz microfractures. ree en, fine-grained, epidote-hornblende - - - massive hornfels with quartz-epidote-iron sulfide veins up to 1 cm wide. Coarse-grained clinopyroxenite with minor calcite and iron sulfides. ~ a n , hematite-stained and quartz-veinedquartz-felds-part gneiss 6 inch thick layerlband of orthogneiss containing 3 percent pyrite altered to limonite - within paragneiss. - .. .

Coarse-grained amphibole-feldspar - - . . . gneiss - - - - . containing up to 3 percentpyrfhotite in patches and microveinlets. coarse-grained arnphibole-feldspar gneiss containing up to 2 percent dissemkatedpyrite and maybe pyrrhotite. - - - - -. - - - - - - - lack --- quartzite containing trace to 2 percent disseminated pyrite and pyrite abng foliation. Unknown original rock, now orangeesaneous material with norekt textures. Select sample of tan to gray, aphanitic, chalcedonicsilica veins cutting clay-iron-bearing carbonate. Fault breccia composed of gray colored aphanitic silica and 1 inch diameter angular clasts of unknown rock type. Gossaneous rock, possibly - -. altered gneiss, with iron carbonate replacing rock and cut by vuggy quartz veins. ~phanitic to banded gray silica breccia matrix with "clads" ofwhite crystalline calcite cut by silica-iron sulfide veins. (Vein?) quartz boulders with approximately 1 percent disseminated sulfide (pyrite?). No other rock nearby. Grab sample of grassy green, coarse-grained clinopyroxenite boulders up to 0.2 m wide. Very fine-grained to sucratic, - - - - olive-brown - - - - - - - . ultramafic - . rock, . looks microgabbroic with -. . weathered --- olivine. dark -- gr& to black ultramafic rock .-- - - with - olivine . - and pyroxene,porph$itic phlogopite, andsprays of ?actinolite? ~ e ~ e d s a m p ~ e of pegmatite cut by vugs with drusy quartz and brown iron oxides, occasiond quartz vein. Coarse-grained amphibolite with randomvoriented-crystals and minor epidote alGr&onI -

Highly limonite stained quartz veins with extremely vuggy areas and subhedral quartz shapes. Bluish-gray biotite quartzite with distinct banding, weak limonite stain, and common orangish quartz microveinlets. Orange to black iron stained fault breccia with white quartz veins. Sucratic white silica matrix with pale green clasts. Breccia with sucratic quartz matrix and quartzite clasts, trace amount of disseminated . ..- pyrite - - and abundant limonite.

White quartz vein rubble and minorquartzvein . - - - . - . - breccia . - - - (clear angular qua& clasts in quartz matrix) with limonite. Select sample of granite cut by vuggy, open-space quartz veins with iron-oxide sfiined vugs.

SAMPLE

01KC92A OlMBWI9A 01 MBW39C 01MBW41A 01 MBW45A OIMBW79A 01MBW80B b l ~ B ~ 1 4 3 ~ 01 MBW146A 01MBW156A 01MBW158A 01MBW230B 0 1 ~ ~ ~ 3 2 ~ 01 ~ B w 2 3 7 C 01MBW248~ 01 MBW251A 01MBW280A 01MBW284B blMBW284C ---

01 MBW357A 01 M B W ~ ~ ~ B 01 MBW385A 0 1 ~ ~ ~ 3 8 7 ~ - - -. - - - - -

01 M B W ~ ~ ~ A b l M B W 4 2 6 ~ 01MBW427A 01MBW429A 01MBW430A 01MBW438~ 01RN38A 01RN237B 0 - 1 Z20A -

01Z20B 012336 01 Z82A 01Z104C 01Z118A 01Z143A 01Z152B 0121 588 01Z158F

UTM E

493212 483460 491 333 491446 491 587 484774 484655 488002 4881 00 489419 489474 492633 493063 493486 495875 495725 493500 492400 492400

- 494455 - 486679

482951 - 482973 - 483034

494403 494502 493985 493127 494004 -

488994 497451 4851 13 4851 -. - - 1 3 --

490707 491234 495710 495208 495863 495098 495098 -'

UTM N

7124832 7099121 71 0071 3 7100801 71 01 353 7103678 7103682 71 13253 71 12877 71 14779 71 14735 7123981 7123705 7122722 71 13318 71 13372 7105582 7105836 7105836 7122255 7097442 7120767 7120839 7121100 7107429 7107752 7107188 7105735 7107397 7103743 7096886 7102458 7102458--~agle

4879777107537 71 16101 7107683 71 16102 7103809 71 13286 71 19507 71 19507

Quadrangle

Eagle ~ a g l e Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle ~ a g l e Eagle Eagle Eagle Eagle Eagle Eagle Eagle ~ a g k Eagle

--Eagle Eagle ~ a g l e - -

~ a g l e Eagle Eagle ~ a g l e Eagle Eagle Eagle

Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle

B1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 AI A1 A1 A1 A1 ~1 A1 A1 A1 - A T .

- A1 A1 A1 A1 A1 A1 A1 A1

-- -- - ---

Table 2. Concentration of metals and trace elements in rock samples from the Eagle and Tanacross quadrangles, Alaska. Note: --- = not analyzed.

- - -

Table 2. Concentration of metals and trace elements in rock samples from the Eagle and Tanacross quadrangles, Alaska. Note: --- = not analyzed.

~ 0 , 0 , 0 , ~ 0 , ~ 0 , 0 , z a

u l ~ ~ ~ a v l ~ c n ~ - - r m n + - I ( O P Q , ~ , N W ~ m r D D D U J T W ~ D D x r n

A A 1 A A A A A A u l m I u l u l u l u l u l u l g >

v s=

i i i i i i u-p B A A I A I A A A A A T J .N iolb io iu io id olb w &'

A 3 -5 ~ l ~ ~ 0 0 0 0 , P , - r b L * A b $ 2 A A A 0 3 w N u l a - l

A 10

03 2 2

A 0ah)ah)a a

g R A A A A A A A A A 7 J A A . A 2 A A A A A

0 0 0 0 0 0 0 0 0 3 m 2

-.L 2 W P B m w N O 4 a h ) P O w 3 w 0 0 0 0 0 0 0 0 0 . A , A A A A A A m u l u l P 1 i n i n i n i n 0 i n T J m

I ul vl 3 O A A A A A A A A A u N l O ~ N N N N N N N -g

3 -'

O u l l o o o o p 3 o $ 2 i 3 ) ~ 0 0 - . O - . N , O a ~ P P ( D ~ l O ( D 1 w

A .A .A ." .A .A .A .A .A u i n u l u l l u l c n u l u l u l l ~ u 0

l 1 3 A A

A u N I L IN -0

u l W - - r A 0 3 - - rN 3 O -0

W w P W w ~ 0 3 ~ 4 ~ ? W a a N v l - - L a 0 3 0 3

- - r N N r U N NW B g P O Q J u l N - - L w N a 3 -- P + PIP + 0 NIO ~ a 0 3 w w w ~ i o W s2' w l O l a 4 u l u l ~ 4 a A A I A A A A A A A u 2 - 2 A A A - A a A 0 0 0 ~ 0 0 0 0 0 0 0 3 n, A A A A A A A A A U A A A L A A A A A y,

3 -

- N ' N N w --L -l W l u l

A A A A A A A A m & A A 2 & 2 A A r n f - - ~ 0 l 0 0 0 0 0 0 0 3ru

P P 1 P p p p p ~ 0 o x O , O O - l C r , O W a J O P C ~ + ~ ) ~ M N A A

u l u l a w w --rm TJ

A ~ U ~ O W ~ ~ N C O A ~ 5 u l 0 0 0 0 0 0 0 0 A A I A A A A A

a P 3

Table 2. Concentration of metals and trace elements in rock samples from the Eagle and Tanacross quadrangles, Alaska. Note: --- = not analyzed. - - - -- - - - -

SAMPLE NUMBER

00RF023C 0 0 ~ ~ 8 6 . 1 B 0 0 ~ ~ 1 8 7 ~ 00RF217B 00RF222A 00RF246B 00RF333 00RF405B 00RF422 0 0 ~ ~ 4 6 3 ~ 0 0 ~ ~ 4 6 3 ~ 00RF484B 00RF490A 00RF507B 00RF510 00RF520B -

0 0 ~ ~ 5 5 2 -

00RF607 01 JEA56A 01 J E A ~ O ~ A 0 1 ~ ~ ~ 2 1 9 ~ 01JEA219E 01 JEA373A 01 K C O ~ B 01 KC30B 0 1 KC43A 01 KC54B 01 KC55C 01 KC59B 01 K C ~ O B 01 KC61 B 01 KC62A - - - -- - -- - - .

01 KC66A 01 K C ~ ~ B 01 KC68A 01 KC69B 01 KCGB 01 KC70B -- - - - -- -

01 KC76B

TI PPm C10

4 0 < I0 --- ___ < I0 <I0 ---

C10 < l o <I0 < I0 < lo c10 < l o < I0 4 0 c10 <10 <'lo <I0 < I0 < I0 < lo < I0 C10 < I0 <10 < lo

< lo <10 C10 < lo < lo

Pd P P ~ --- --- c6 --- c2 c6 --- --- --- c2 --- --- --- --- --- --- --- --- --- ---- --- --- --- --- --- --- '. --- --- --- --- --- --- --- --- -- --- --- --- - - ---

P PPm

260 1500

< I0 20

--- ---

200 120 50

--- 4470 -560 160

3490 110 570 550 710 70

- 180 ---

100 180

1090 - 6 0 380 30

4 0 30

. - 70 30 10

4 0 -- 360

31% 120

1190 2150

-- 30 1oc2

U PPm < lo

10<10 < I0 <10 ---

Zn PPm

6 16

--- ___

18 12

--- 30 76 12

172 8

96 98 12

42 -

6 14

386 10 60

C2 C2 <2

16 6

C2 C2

28- 64 58 46

106 2

Na %

C.01 0.04 0.01

C.01 --- --- 0.01 0.07 0.01

--- 0.13 0.06 0.01 0.01 0.01 0.05 0.02 0.01 0.08 0.05

c . 0 1 c.01 0.04 0.13 0.07 0.06

C.01 <.01 0.09 0.07 0.08 0.08 - - -

0.06 0.17 0.07 0.08 0.07 0.07 0.01

Pb PPm

8 c2 <2 --- ___

6 <2

4 ---

2 8

14 c2 <2

32 2

10 c2 <2 <2

2 6 2 2

<2 <2

- 2 c2 <2

2 - -

6 c2

28 C2 C2

2 -

Pt P P ~

40--- 60---

c6 --- <5 c6

40--- --- --- c5 --- --- --- --- ---

61--- --- --- --- --- -

--- --- --- --- --- --- --- --- --- --- --- ---

--- - --- --- --

' Ni PPm

6 17

578 379

--- ---

64 5 1

--- 30 42

5 19 1 2

22 55 5 9

14 6 1 4 9 1 3 4

- 1 1 1 I - - - 5 8 8 4 1 1 - .

3

Sr PPm

39 16

100 --- ___

15 117

--- 48 33 11 42

374 1 8

11 19 10 26 70 8

21 24 18

<1 5

26 23 28 38

71 7

61 7

20 256~<.01

V PPm

11 8

---

S %

6c.01 0.37

1c.01 c.01 --- ___ 1.04<2 0.35

c.01 --- 1.23 0.93 0.04 0.06 0.04

16c.01 0.02 0.01

c.01

c.01 - - -

2.92 1.43 0.96 0.11<2 0.3

c.01 c.01 c.01 <.01 c.01 0.01 0.02 0 . 0 8 - 0.14 0.06 0.14 0.56 - - 0.04 0.04

Ti %

4c.01 0.11

<.01 c.01 --- ___

17c.01 c.01 c.01 --- 0.18 0.16

c.01 C.01 c.01 c.01 c.01 <.01 0.01 0.02 0.01

<.01 0.16

c.01 0.03

c.01 c.01 c.01 0.01

c.01 C.01 c.01

2i%0.04<10 0.21

<.01 0.1

0.04 c.01

W PPm

5C10 56<10

c10 < I0 --- ___

1 0 ~ 1 0 < I0 < I0 --- c10 C10 < I0 <I0 < lo < I0 c10 <I0 C10 4 0 4 0 <I0 <10 < lo <10 < I0 < lo < lo < I0 4 0 < I0 < I0

< lo < l o < I0 < lo < I0

_ - - ) _ _ - 20<10

< lo < lo ---

lol<10 <I0 < lo < lo < lo <10 e l0 < I0 < I0 40 ;lo < lo < I0 <I0 < I0 <10 <10 4 0 e l 0 c10 < I0 < I0

< l o < I0 < I0 < I0 4 0

< 1 0 C i O - - q 8 2 1 0 -

Sb PPm <2 c2

8 <2 --- __

<2 <2 --- c2 <2

38 6

<2 <2 c2

2 <2

2 18 10 4

6 <2 <2 <2 <2 c2 <2 c2

2 4 2 2 6

-- <2 2

12 4

--- 92

104 29

145 2

<1 17 20 7

18 -6 4

10 < I

78 4

<1 4 8 5 1

<1 c 1 0 ~ - 1 5 ~ 1 0

132 18 47 72

1

Sc PPm

2 5

c1 4

--- __

2 2

<1 ---

6 15

c1 1

<1 <1

1 2 1 7

c1 1

10 c1

8 c1 <1 < I C1 c1 C1 <1

2 11 3 4

13 <1 -

6

-0 1g 7 L a i i i i i i i i i i i i i i i i i i i i ' J i i y i i i i i i i i I I I I I I I : : : : : :

* a a g i i 1 1 1 I I I I ; X I : ; I I I : : I : I : : I : : I : : : I I I I I I I I I I I I l l : : :

v

Q v v v v v v v v l v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v ~ d d r c o ~ ~ ~ m w o o m o m ~ c o b a b a m m o - a c o b ~ - o ~ m m r n ~ c o w m w ~ c o

> a d (va LD N W N - = L D ~ - m c o z m m 1 7 m 7 co I n v

1

E O O O O O O O ~ ' ~ O O O O O O O O O O O O O O O O O O O O O ~ O O O O O O ~ ~ ~

Q v v v v v v v v v v v v v v v v ~ v v v v v v v v v v v v v v v v v v v v v v

- E 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 ' 0 0 0 0 0 0 0 0 ~ 0

Q v v v v v ~ v v v v v v v v v v v v v v v v v v v v v v v ~ v v v v v v v v v v a 1 LD ~ ~ 7 ~ - ~ ~ ' 0 7 ~ 7 - 0 Y ~ ~ 1 g ~ ~ g g g - g ~ ~ v - ~ v ~ 7 7 7 - 7 7 dl0

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, ~ o m m ~ ~ ~ a ~ ~ o b ~ - m ~ - a w w ~ m m o o o o w c o a ~ ~ ~ a v - - m o , b ~ c o v , g m z - N - 7 0,- - 7

N - L D e ~ N N b N - m a l m - ~ - 7

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o E - N y - d C 9 0 N d N c 9 - W ~ b C D N L D N O r b d b d 7 7 - 7 7 N - 7 Y - 7 N -

7 ? I v , g y - -

v v v v v v v v - o E N d a N W N N N d W N N ? d 'dd

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v v v v v v v v v v v v v v v

. -- - I, E O N N C D c o I O (ON$ !

I- ONNCDCO d N N N a $ N (V m N N n g N N - N I N N N N N N N N N N N N N ICV

v v v v v v v v v v , V I v v v v v I V -- 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ' 0 0 0 0 0 0 0 0 E ~ b ~ 1 0 0 ~ ~ ~ ~ 7 ~ b ~ ~ 0 - ~ ~ ~ b w ~ d ~ ~ d 0 - 0 7 r ' ~ ? m m b o - l a - - - a Q

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v v v v v v v v v v v v v I '

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m a a - m w ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ e - t a I - ' a1 0 ~ " ~ % 2 3 3 3 3 Z Z 2 Z 2 2 2 ? ? 2 ? ? 3 ~ 3 3 3 3 3 3 3 3 % 3 c o m ~ 4 m 0 ~ 1 ~ * a m ~ ~ ~ m m m m m m m m r n m m m m m m m m m m m m m m m m m m i m m 8 f 1 ~ ~ ~ ~ ~ ~ ~ H z X X X z r z z H z r z z ~ r z ~ ~ r z ~ ~ ~ ~ z z % r r z i ~ ~ e ~ ; N N N N N I N a ~ - - 7 7 - - 7 ~ 7 - - - - 7 7 - - ~ 7 Y - Y - 7 7 7 7 - - l v 7 7 7 7 7 7 7 1 7 ~ v,z 0000000,00~00000000000000000000l0000l000000

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C E w$$ jw$ j$ jgsg NE

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Y Nl3 m - . r O - y O - - O F Z O O & o O O O O O v v v v

L~ - - 0 ~ O b V ) r - m v,g 7

7 r . N

" E m - m ~ r n c

"'E.; v v

a E N N N

v , g y y y y y ( V N V m w w NcOx-m * 0 0 9 - ' " 9 ~ 0 0 0 ~ ~ 0 0 0 0

o E N s N '

a 2 N N N N N v v v v v 0 0 0 0 0 0 0 0

.;t%-NCOCnCUr € 7 b N m.-CD a Q Q s

v m b o m N - r n b m . - E v ~ r v

z E (V r m

,T-,l-oor,o

Z Z 0 0 0 0 & ~ 0 0 ~ v v v v v v

a a m m ~ m a a a !?w c O m N c O c O d m b b a m ~~~-~~~g~ $ 3 Y N Y Y N N N N Y m z 0 0 0 0 0 0 0 0 0

Table 3. Location and description of rock samples collected in the Eagle and Tanacross quadrangles for major-oxide, minor oxide, and trace element analyses.

7 3 ~ ~ ~ 0 7 9 -

99MBW095B 00DS121 OOJGOI 4-6/28 00JG032-6129 00JG092-6/20 00~~095-6120 OOMBWI 94 00MBW213C 00MBW535 0 0 ~ ~ ~ 5 4 9 OORFOOI A 00RF054 00RF061 00RF061 00RF092A O O R F O ~ ~ A 00RF112A 00RF113B 00RF118 O O R F ~ 2 6 ~ 0 0 ~ ~ 1 2 6 ~ 00RF126B 00RF134 00RF134 -

00RF174A 00RF201A 00RF236A --

0 0 ~ ~ 3 2 2 ~ --

0 0 ~ ~ 3 4 0 ~ 00RF345A 00RF349A 00RF349B ' 0 0 ~ ~ 3 5 7 ~ 00RF376 0 0 ~ ~ 4 5 4 0 0 ~ ~ 4 6 7 0 0 ~ ~ 4 8 7 ~

Quadrangle 1 Rock Type - - , I - - --

Eagle Eagle Eagle

Tanacross Tanacross Tanacross Tanacross Tanacross Tanacross Tanacross Tanacross

Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle

Eagle Eagle 1 Finely crystalline, siliceous tuff

Tuff, possibly airfall orwaterlain Amphibolite Amphibolite Biotite amphibolite Fine-grained garnet - amphibolite - -

Amphibolite White, fine-grained felsic plutonic rock Granitic dike Granite or granodiorite -

Aplite dike Biotite-chlorite-quartz-white mica schist

Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle ~ a g l e Eagle

A-2 A-I A-I A-I A-I A-2 A-2 A-2 A-2 A-I A-I A-I

Biotite-quartz-feldspar schist Albite-chlorite-actinolite-clinozoisite metagabbro

A-1 D-I D-I D-I D-I D-I

Albite-chlorite-actinolite-clinozoisite metagabbro White mica-albite-actinolite-chlorite-clinozoiste metagabbro -

White mica-albite-actinolite-chlorite-clinozoisite metagabbro Amphibolite Lithic rhyolite Muscovite-K feldspar-biotite-plagioclase-quartz* - - - -. . . -- - - - - - - garnet .. schist - -

D-I D-I

Garnet-biotite-clinozoisite-pla - - - - -

~arnet-biotite-clinozoisite-~la~ioclase-muscovite-quartz schist D-1 A-1 A-1 A-1 A-1 A-1

Biotite-muscovite-feldspar-quartz - .. . schist and - quartzite

Garnet-bearing amphibolite Albite-chlorite-actinolite-clinozoisite metagabbro Albite-chlorite-actinolite-clinozoisite metagabbro Biotite-K feldspar-muscovite-quartz schist ~linozoisite-biotite-hornblende-~a~ioclase-~uartz - -

Clinozoisite-chlorite-K feldspar-white mica-albite-quartz metafelsite

-

Eagle I A-I l ~ h ~ o l i t e dike or sill

11

A-I A-I A-1 A-1 A-I A-I

- -- - - -

~ ~ a n i t e quartzite Biotite-chlorite-albite-clinozoisite-actnote metagabbro Biotite-chlorite-actinolite schist Fuchsite-quartz-actinolite schist Biotite-chlorite-actinolite schist Garnet-bearing -- - amphibolite- - - . -

i d trace element rable 3. Location and description of rock samples collected in the Eagle and Tanacross quadrangles for major-oxide, minor oxide, analyses.

Rock Type

Carbonaceous white mica-quartz schist Oxyhornblende-plagioclase-phyric - - . . . - andesite -

~esicularalkali olivine basalt Quartz augen white mica-quartz schist Chlorite-white mica-quartz schist Quartz-hornblende-clinozoisitek biotite gneiss Amphibolite Amphibolite with garnet ~ iot i te amphibolite- Amphibolite Amphibolite Biotite amphibolite Amphibolite Amphibolite and coarse-grained amphibole gneiss Amphibolite

SAMPLE

00RF488 00RF517 0 0 ~ ~ 5 4 7 ~ 0 0 ~ ~ 5 4 9 ~ 00RF552 00RF563 00RF617 00RF681 0 0 ~ ~ 2 0 4 ~ 0 0 ~ ~ 2 5 6 ~ 00RN268A 00RN277B 00RN370A 00RN413 00RN454A

UTM N

709801 7 7094570 71 0691 7 71 07187 71 0771 9 7096924 71 10975 7106910 71 15277 71 18826 7121631 71 19991 71 04999 71 0091 7 71251 33

UTM E

498328 4991 70 499904 499893 499764 496804 496878 493648 465330 454300 458057 456698 476829 473624 468965

00WM117 00WM225 00WM250C 0 0 ~ ~ 2 5 2 B 00WM321A 01 JEA2A 01 JEA35A 01 JEA39B 01 JEA~M 01 JEA51 B 01 JEA55B 01 JEA60A 01 JEA~OA 01 JEAI 38A 01 JEA238A 01 JEA243A 01JEA257B 01 J E A ~ ~ ~ B 01 JEA311 - - . B .

01 KC16B 01 K C ~ ~ B 0 1 KC39A 01 K C ~ ~ B

7122731 7097046 7105976 71 05357 71 15789 7096088 7097373 7101 905 710291 9 71 03587 71 09552 71 09428 71 1001 9 71 16888 71 19097 71 19075 7107004 7107135 7099917 7101269 7103033 70981 50 71 1 1921 71 11921

458850 475714 478308 4791 09 477972 485065 488864 486087 486766 487060 484896 484656 481 397 487424 490287 493300 489980 489841 484742 488248 490938 490700 484335 484335

Quadrangle

Eagle Tanacross

~ a ~ l e - Eagle Eagle Eagle Eagle Eagle

- Eagle ~ a g l e Eagle Eagle Eagle Eagle Eagle

A-I D-I A-I A-I A-I A-I A-I A-I A-2 A-2 A-2 A-2 A-I A-2 8-2

Eagle Eagle Eagle Eagle Eagle

Tanacross Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle - -

Eagle Eagle Eagle .

Eagle

A-2 Amphibolite A-2 Amphibolite A-I A-2 A-2 D l A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1

,Amphibolite Amphibolite Amphibolite Amphibolite Amphibolite Amphibolite Amphibolite Amphibolite gneiss Orthogneiss .. Amphibolite Garnet-bearing amphibolite Orthogneiss Amphibolite Orthogneiss? (biotite-quartz-feldspar - .. gneiss) Amphibolite Biotite granite Amphibolite (Muscovite) weak$ folia Fine-grained orthogneiss Fine-grained orthogneiss .. - -

~mphibolite

12

Table 3. Location and description of rock samples collected in the Eagle and Tanacross quadrangles for major-oxide, minor oxide, a1 analvses.

UTM N I Quadrangle I Rock Type I I I . .

SAMPLE

01 MBW252A 01 MBW255A 0 1 ~ ~ \ 1 \ 1 2 8 7 ~ 01 MBW288A 01 MBW289A 01 M B W ~ ~ ~ A 01 M B W ~ O ~ A 01 MBW313A 01 MBW314A 01 MBW319A 01MBW321A 01 M B W ~ ~ ~ A 01 MBW330A 01MBW335A 01 MBW336A 01 MBW344A 01 MBW367A 01MBW371A 01 MBW376A 01 MBW377B 01 MBW381 B 01 MBW383A 01MBW402A 01 MBW403A 01 MBW418A


UTM E

495356 485537 491702 491 500 491 328 490273 499603 499530 499282 498555 497159 497934 496727 495017 494844 494346 480627 481412 483234 483058 482972 482964 482004 482081 487391

7106576 / .. ~ a g l e -

7106862 - Eaale

71 22081 71 22042 7121989

Eagle iagle Eagle Eagle

~ a g l e Eagle Eaale

7121787 7123708 71 24032 7 1 1 9640 7 1 19734 7121018 7098608 7098989 7119461 7 1 19640 71 20238 7120551 7120580 71 20862 7121431 7106770 7106916 71 072 13 7099751 7101189

Eagle Eagle Eagle Eagle Eagle

~ a g l e Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle ~ a g l e Eagle Eagle

Metagabbro Biotite granodiorite dike Biotite amphibolite. Biotite tonalite or orthogneiss Amphibolite White mica-biotite-quartz-feldspar -- - - orthogneiss Amphibolite

~d trace element

A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1

Biotite-quartz-feldspar gneiss Amphibolite Amphibolite White mica-bearing -. - orthogneiss White mica-bearing orthogneiss Amphibole-feldspar gneiss Slightly foliated gabbro Biotite-hornblende-quartz-feldspar orthogneiss Amphibolite Tonalitic or trondhjemitic, white mica-bearing orthogneiss dike or sill Pegmatitic, biotite-bearing orthogneiss Biotite granodioritic (?) orthogneiss Porphyritic biotite-hornblende monzonite (dike?) Slightly foliated, biotite monzonite White mica-bearing orthogneiss Fine-grained, biotite-bearing? Amphibolite Granodioritic, biotite orthogneiss Granodioritic, biotite orthogneiss Amphibolite - .. --

Biotite amphibolite White mica-bearing granite sill ~iotite-amphibolite- Biotite-bearing amphibolite Biotite-bearing - - . paragneiss -

Biotite-garnet arnphibolitg -

Amphibolite Amphibolite Amphibolite Amphibolite Amphibolite Amphibolite Amphibole gneiss

I 1 I I 1 Note: Sample 00RN568A was previously identified as 00RN586A in DGGS publication RDF2000-4


SAMPLE

01 Z237A 01 Z245A 01Z250A 012254A 0 1 Z256A 01Z258A 0 1 Z262A 01 2267A 01 Z272A -

Quadrangle I Rock Type UTM E

490306 484693 480239 480905 481248 481428 4801 11 481 089 4821 15

UTM N

7096891 71 04914 71 19764 7120204 7120608 7120723 7121 396 71 20820 71 24203

Biotite amphibolite Biotite-garnet arnphibolite ~iotite-hornblende granodiorite Amphibolite Biotite arnph~bolite Granitic biotite orthogneiss Tonalitic biotite orthogneiss Granodioritic biotite orthogneiss Biotite-garnet paragneiss -

Eagle i A1 Eagle A1 Eagle Eagle Eagle Eagle Eagle Eagle Eagle

A1 A1 A1 A1 A1 A1 A1

Table 4. Concentration of major-oxides, minor oxides, and trace elements in rock samples from the Eagle and Tanacross quadrangles, Alaska. Note: --- = not analyzed.

Sr PPm

280 2420

198 --- --- ---

12--- 762 554 654 968

--- 264

--- 82

--- 128 148 254 90

--- 164 116

--- 98

--- 310 - .

I-- 220

50 ---

102 324

6 422 144 70

SAMPLE NUMBER

99MBW079 99MBW095B 00DS121 OOJGO14-6/28 00~~032-6 /29 00JG092-6/20 00~~095-6 /20- - 0 0 ~ ~ ~ 1 9 4 -

0 0 ~ ~ ~ 2 1 3 ~ 0 0 ~ ~ ~ 5 3 5

OORFOOl A 00MBW549

00RF054 00RF061 00RF061 00RF092A 00RF092A 00RF112A 00RF113B 00RF118 00RF126A 0 0 ~ ~ 1 2 6 ~ 00RF126B 00RF134 00RF134 00RF160 00RF174A 0 0 ~ ~ 2 0 1 ~ 0 0 ~ ~ 2 3 6 ~ 00RF322A 00RF340B 0 0 ~ ~ 3 4 5 ~ 0 0 ~ ~ 3 4 9 ~ -

00RF349B 0 0 ~ ~ 3 5 7 ~ 0 0 ~ ~ 3 7 6 00RF454

Na20

1.70 0.11 3.74 3.20 2.56 5.13

3.70 3.60 2.37 5.30 1.34 3.45 1.06 1.13 1.77 1.90 3.43 1.72 1.16 1.00 1.05 1.59 1.92 1.89 0.14 4.46 2.18-c.01 2.16 1.15

c.01 1.72 2.92 0.02 3.05 4.21 1.17

A1203 %

22.52 9.60

13.80 16.34 14.71 18.51 17.26 14.52- 14.57 14.47 15.31 13.68 13.85 15.49 15.79 19.99 20.37 14.74 14.09 11.71 13.62 13.74 15.67 16.15 16.27 11.02 17.36 12.89 14.85 12.75 17.44 11.82 15.22 2.65

15.33 14.76 9.51

BaO

--- --- --- 0.03 0.02

180.08 0.14 --- ---

Zr PPm 204 240

87 129 62 54

I 143 51 69

CaO %

1.86 2.08 4.70 5.37 9.77 4.10 6.31 1.43

1 .06 3.12 1.08 1.80 2.16

14.63 14.61 12.05 12.06 9.88 1.21 1.23 2.72 2.77

11.00 13.86 13.71 0.16 6.12 2.31

12.12 14.72 0.69

10.54 -8.85 11.92 7.12 6.50 0.64

P205 %

0.14 0.03 0.1 1 0.19 0.22 0.12

4.39--0.35

0.03 0 2 9 0.01 0.23 0.18

c.01 0.01 0.03 0.01 0.14 0.04 0.53 0.09 0.10 0.05

c.01 0.04 0 05 0.36

0.12

0.24 0.14 0.10 0.03 0.35 0.11 0.09

Y PPm

44 38 30 22 20

26 8

14

Si02

60.20 72.59 65.92 57.54 49.30 51.56 50.15

0.037527 73.08~ 65.50 72.96 62.54 68.09 46.97 47.22 46.43 46.37 49.01 72.01 68.38 68.54 68.01 50.07 48.88 49.17 76.74 49.53 75.27 45.99

0.2248.69 75.94 50.10 50.34 55.68 51.97 52.08 79.83

162 48

--- 171

--- 15

--- 15 93

120 192

--- 231

27 ---

18 ---

108 - - --- 81 18

210 18 57 12 75 66

201

Cr203 %

0.01 c.01 c.01 c.01 c.01 c.01 c.01 -

c.01 -

0.01 c.01-

0.01 0.03

c.01 0.15 0.10 0.05 0.04 0.01

c.01 0.03

c.01 c.01

0.01 c.01 c.01

0.02 c.01

0.01 0.06- 0.03

c.01 0.10 . . -

c.01 0.10 0.01

c.01 0.02

Ti02 % % %

0.93 0.13 0.59 0.73 0.81 0.81 1.20 0.06 0.08

-0.56 0.04 0.92 0.70 0.25 0.25 0.12 0.11 1.52 0.17 0.95 0.62 0.65 0.43 0.42 0.42 0.20 1.04 0.12 1.22 0.40 0.95 0.20 0.85 0.04 0.98 1.25 0.35

LO1

2.90 11.00 0.95 1.06 1.45 0.85 1.17 0.63 0 .55 1.52 0.18 3.99 1.05 2.59 2.60 3 52 3.55 1.71 2 93 1.75 1.97 2.00 1.89 1.69 1.73 1.75 1.39 1.59 2.26 1.68 1.64 3.58 1.93 3.10 2.85 1.29 1.36

26

Nb PPm

26' 34 10 10 6 8

8 6

1 8 ~ - 10

--- 16

--- 6

--- 4

10 20 28

--- 2 0 6

--- 4

--- - 6 -. :I-

6 6

28 6 8 6 8 8

14

TOTAL %

98.60 99.09 99.03 99.12 99.55 99.43 99.74 99.06

98.75 98.94 98.69 99.57 99.00 99.67 98.88 99.31 99.78 99.09 98.57 98.82 98.58 99.08 98.83 99.05, 98.93 98.74 98.75 99.01 99.11 99.51 99.27 99.03 99.45 99.32 98.56 99.00

---

Fe203 %

3.98 1.71 5.60 7.36

10.83 11.18 9.85 0.57 0.83 5.00 0.45 6.75 4.96 6.61 6.59 4.87 4.80

11.08 1.45 6.01 5.08 5.30

10.23 7.22 7.25 2.19

11.16 -1.87 11.33 7.66 1.96 7.53 9.92 5.97 9.90

12.20 -2.75

MgO % % % %

1.121 0.73 2.78 5.04 8.19 4.01 6.26 0.06 0.18 1.52 0.03 4.18 2.44

11.03 11.16 9.37 9.40 7.59 0.24 2.83 1.81 1.75 7.53 8.46 8.33 1 87 4.85 1.40 8.23

11.60 0.53

12.85 8.35

19.52 7.30 5.42 0.76

Ba PPm 1485 2460 250

--- --- --- -- 3120

98.741995 1775 3570 --- 1885 ---

40 ---

585 165

2260 910

--- 995 160

--- 60

--- 2360 --1

355 40

--- 610 795 455 225 195 650

K20

3.20 1.11 0.75 2.10 1.48 2.82 2.44 2.78 4.73 4.30 3 54 3 18 2.62 0.1 1 0.10 0.60 0.62 0 49 5 16 3.91 3.30 3.14 0.43 0.09 0.10 4 76 2.29 1.07 0.49 0.07 0.09 0.54 0.42 0.23 0.31 0.54 2.48

I -

MnO

0.04 c.01 0.09 0.13 0.18 0.26 0 .18 0.01 0.02 0.10 0.03 0.05 0.07 0.1 1 0.11 0.08 0.08 0.18 0.07 0.08 0.07 0.07 0 18 0.14 0.14 0.03 0.18 0.04 0.18- 0.14 0.03 0.15 0.13 0.19 0.15 0.20 0.04

Rb PPm 138 78 22 64 34 56

[ 58 72

- 8 0 82 64

--- 1 0 4

--- 14

--- 22 18

204 162

--- 112 16

--- 10

--- 64

I-- 20 12 8

24 18 16 16 20 96

6 ---

32 ---

12 ---

6 28 26 20

--- 30 16

--- 14

--- 26

--- -

22

22 14 20 8

24 24 2 2 -

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

14--- c.01 --- --- --- --- ---


SAMPLE NUMBER

01MBW187A 0 1 ~ ~ ~ 2 5 ~ 0 1 ~ ~ ~ 2 2 6 ~ 01MBW244A 01MBW245A 01MBW246B 01MBW252A 01MBW255A 01MBW287B 01MBW288A 01MBW289A 0 1 ~ ~ ~ 9 4 ~ 01MBW304A 01MBW313A 01MBW314A 0 1 ~ ~ ~ 3 1 9 ~ 0 1 ~ ~ ~ 3 2 1 ~ 01MBW327A 01MBW330A 01MBW335A 01MBW336A 0 1 ~ ~ ~ 3 4 4 ~ 0 1 ~ ~ ~ 3 6 7 ~ 01MBW371A 01MBW376A 01MBW377B 01MBW381B 01MBW383A 01MBW402A 01MBW403A 0 1 ~ ~ ~ 4 1 8 ~ 0 1 ~ ~ ~ 4 3 2 ~

Y ppm

36 24 20 22 10 28 24 30 22 8

26 16 32 28 32 18 26 28 26 22

34 10 6

28 10

4 14 30 28

22 24 28

A1203 o

14.02 13.59 12.46 13.77 16.29 14.77 16.25 14.95 16.45 16.23 14.97 16.31 14.61 14.26 14.59 19.54 12.83 13.38 14.58 14.17 13.50 17.85 15.21 15.23 15.96 15.06 15.58 15.55 13.76 15.35 14.99 16.12

BaO 1 -

0.04 0.10

c.01 0.07 0.17 0.01 0.25 0.16 0.04 0.12 0.07 0.25 c.01 0.06 c.01 c.01 0.10 0.10 0.10 0.05

260.10 c.01 0.42 0.31

260.19 0.20 0.19

6 0 . 0 6 18<.01

0.10 0.12 0.03 0.03

80 .19 0.08 0.16 0.15

CaO

8.07 5.10

11.00 1.28 3.53 9.45 6.12 4.70 7.67 1.50 6.79 0.97 8.86 4.30

10.52 6.90 0.33c.01 0.44 4.48 6.49 4.86 7.29

' 1.38 1.15 4.34 3.87 3.74 1.34 6.52 3.29

-2.72 6.63

0 1 ~ ~ ~ 4 3 3 ~ 0 1 ~ ~ ~ 4 3 6 ~ - - 2 0 . 6 0 01 RN13A 01 RN22A -

5.91 0 .17 8.71 5.46 1.47

15.00

14.06 15.26

01 R N ~ ~ A 9.27

Cr203Fe203 010

c.01 c.01

0.02 c.01 <.01 c.01 c.01 c.01 c.01 c.01 c.01 c.01 c.01 c.01 c.01 c.01

c.01 c.01

0.01 0.01 0.01

c.01 c.01 c.01 c.01 c.01 c.01 c.01 c.01 c.01 -

-0.01 --

- 0.01 <.dl -

0.07 c.01

13.20 6.48 6.19 2.40 2.45

12.59 7.67 6.02 8.68 0.50

11.89 1.10

13.17 4.07

11.48

1.09 1.19 7.87 8.07 5.93

11.52 -0.79 0.56 4.75 4.94 2.22 0.48

14.26 1.08 1.40

.- -6.72 6.59 0.88 8.82 7.63 5.00-

K20 MgO 1% 0.63 2.23 0.60 2.84 2.04 0.55 2.99 3.71 0.41 0.83 0.71 1.54 0.53 1.60 0.45

8.28'0.28 4.85 4.38 1.75 1.44 2.40 0.48 2.45 1.37 3.62 3.66 2.56 1.69 0.46 1.64 1.62 0.53 0.99 2.64 1.67 1.41 2.10

4.10 4.07 5.40 0.52 0.75 5.44 2.91 1.59 5.24 0.10 4.31 0.34 5.13 0.84 6.37 4.50

c.01 0.05 3.03 5.44 3.42 3.48 0.14 0.01 1.19 1.37 0.71 0.03 3.60 0.07 0.29 3.35 4.54 0.34 8.83 3.41 2.80

Rb ppm

72 20 68 46 18 64 98

20 20 30 20 46 18 14

136 146 48 52 82 18 44 22

100 98 58 50 14 40 40 12 2 4 7 0 44 36 62

P205 YO

0.22 0.09 0.12 0.07 0.22 0.36 0.37 0.36 0.09 0.02 0.17 0.03 0.20 0.07 0.16 0.07 0.01 0.02 0.12 0.09 0.10 0.49 0.03

c.01 0.22 0.26 0.11 0.03 0.06 0.04

0.04 0.15

MnO Na20

% 1% Nb ppm

18'<10 10

e l 0

10 e l 0

20 18C10

I 0 e l 0

e l 0 20

7

20 20

10 10 20

e l 0 e l 0

20 20--- l o - - - l o - - -

< I0 < l o < I0

10 0.11 0.01 0.27 0.24 0.14

Si02 %

52.59 64.26 57.54 73.18 67.95 49.67 57.30 63.56 53.94 73.89 54.44 73.93 49.51

0.23 0.11 0.11 0.04 0.04 0.28 0.15 0.13 0.17 0.01 0.19 0.01 0.23 0.07 0.18 0.11 0.05 0.05 0.27 0.14 0.11 0.38 0.01 0.01 0.13 0.13 0.04 0.01 0.22 0.02 0.02 0.14 0.19 0.01 0.14 0.14 0.12

10

20--- 20 10

Ti02

1.84 0.44 0.77 0.25 0.29 1.91 0.67 0.66 1.00 0.05 1.22 0.14 1.71

3.11 2.08 2.14 4.15 4.18 2.29 3.44 2.28 3.99 5.71 3.83 3.97 3.33 2.96 1.75 5.32 3.62 3.34 1.65 1.81 2.08 4.11 5.35 7.09 2.81 2.97 4.64 6.20 4.33 5.04 4.85 4.43- 2.70 0.05.- 1.91 3.84 0.82

LO1 ITOTALIBa

59.78 68.99 52.00 60.16 7568

Sr ~r

0.70 0.08 1.19 0.73 0.55

ppm 480 990 210 800

1710 250

2160 1440 500

1030 780

2340 190 730

NA 80

900 950

1060 600 990 290

3340 2340 1640 1800 1670 650 130 940

1210 410 470

1670 870

1610 1620

ppm --- --- ---

l o - - - --- ---

l o - - - --- --- --- ---

l o - - - --- --- ---

l o - - - --- ---

l o - - - --- --- --- --- --- ---

--- --- --- --- --- ~

l o - -

--- -- ---

% 1 %

69.921 50.75 52.69 74.29 74.51 63.16 59.54 65.02 51.05 71.47 71.65 64.69 65.14 67.44 72.26 55.50 71.15 71.58 59.12

1.77 - 5.59

1.81 1.07 1.41

pprn 110 100 60

140 100 80 90

170 70 50 60 80

100 130 95 60 70 80

120 80

100 190 50 60

160 160 110 50 40 90 90

100

120 - -

70 120 120 110

0.44' 1.18 2.32 0.76 1.30 1.80 1.04 1.11 1.42 0.56 1.05 0.92 1.87 0.97 1.85 1.52 0.73 0.60 1.77 1.68 1.16 0.86 0.53 0.42 1.02 0.93 0.42 0.44

0.46 1.35 0.54 0.09 0.06 0.66 0.54 0.43 1.62 0.11 0.07 0.44 0.52 0.25 0.04 0.82 0.09 0.16 0.86

98.35 9955 99.60 99.58 99.54

98.52 99.75 98.70 99.34 99.31 99.15 99.28 99.31 99.15 99.71 99.65 99.64 99.17 99.63 99.47 99.76 98.02 98.14 99.47 99.50 99.15 99.17 98.03 98.08 99.45 99.16 98.01 98.16

0.32 99.86 0.30 98.29 0.62 1.01

98.55 99.13

~ O d a N d O N O a N d N 3 N a O N w a N N O N N O O a d m O w w O m w d N N N - - N I O N - N N N O O N N N N N N N N I O ~ N N W - N N O N - O N N N ~ O

> E I

E O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O

L a W b m N Q z m N m a a a a W a - V m m a V a m a b a V m a a a b W m F b l b -7 y 7 - 7 7 r 7 N / r N a nJ I

E I I ~ Q ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ I ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ I l i l a n 1 1 1 1 , 1 1 1 1 1 1 1 1 1 1 l 1 , 1 1 1 1 1 1 1 1 1 1 1 1 1 I

0 ' 0 0 0 0 0 0 0 0 000000010 E z F! 0 0 0 r 0 0 - 0 r 0 0 0 0 0 0 N 0 r 01- Nl- N l0 .0 .0 7 7 N N N F h N s E 7 - 7 7 - v V - V r Y Y Y 7 , 7 7 1 7

v v v v v v v v v v v v v V I v v v v I

~ O 0 ~ l N 0 ' 0 ~ V 0 N 0 W ~ n J N 0 N W ~ ~ O ~ W ~ d ~ ~ ~ ~ ( O Q ) ~ ~ N ~ ~ N a & ~ ~ m o - ~ I ~ m ~ m ~ - w o w ~ ~ w ~ w w m o m m ~ ~ ~ - c r , o o m ~ m i a IY a I 7 v- I

000000~000000000000000l000000000000000~0 E a ( ~ o w a m ~ ~ w a - ~ m ~ a m o ~ m m a - w m b m o ~ a - a - c r , ~ m - ~ m b ~ o m Q o w w w - a i m ~ o ~ ~ - w m o ~ m m a ~ o - a a ~ m - o - a m w a ~ m ~ m ma- N

Y N r 7 - - o r - 7 - - 0 ~ 0 b b ~ , ~ ~ N 0 0 0 ~ ~ ~ ~ ~ 0 0 b N ~ ~ ~ O d b ~ ~ O O ~ ~ ~ b - b ~ ~ - q q q q y y ' q y q y q q y q q q - q q w q y q q y q ~ q q q q O q y y c - : o q O - - Y O ~ r N O ~ ~ ~ r ~ r O ~ O O O ~ ~ O , ~ ~ O l ~ O r O ~ r ~ ~ ~ o ~ ~ 2 s --

N ~ a w - w m ~ a o ~ w ~ ~ m b a o b o m o w ~ w a a ~ ~ ~ ~ a m ~ m m m - o a b b m - a o ~ m ~ b w o a o - a a o w ~ - w m ~ y q q q q q q o y q q y q ~ q gae d d d d 1 ~ d ' ~ 6 6 ~ ~ ~ ~ d ~ 6 6 6 6 ~ 6 6 ~ 0 0 0 ~ 0 ~ 0 0 0 0 0 0 N 1 0 w o a a ~ a ~ ~ o m m ~ ~ w ~ - m ~ m m m m w ~ o - o m o ~ w a o a ~ w m m i - o q q q w ~ ~ ~ q ~ y q q q q ' ~ : q q q q o y ~ q ~ q q q y y ~ q ~ ~ q q ~ q w ~ q ~ ~ m a - N o l m l o m N N ic m a - N O m a o t- a a . m m o o w - m m c N m m m

~ ~ m m m m m m w w b m m w w m m b w m b ~ w m m ~ b m b w m m m b m b m c o w m m m . - m m a ~ ~ m a m ~ m - m ~ r n - m o o ~ a ~ m - m a ~ o ~ ~ ~ m ~ ~ m o w ~ ~ ~ o - o ~ - m o o ~ o ~ - ~ o o o ~ o - ~ ~ ~ ~ - ~ ~ - ~ ~ ~ ~ ~ ~ - ~ l m d d d d d d , d d d d d d d d d d d d d d d d d d d d d d d d d d d d d ~ d

n S I

b ~ ~ ~ - O b O ~ ~ b b ~ ~ O - L O N O W N l W N ~ r ~ b b d . r ~ ~ ~ ~ b ~ - g q q q y q ~ q y y q q q ~ q y q c - : ' 9 q ~ ~ q ~ y q q 9 T : q r ~ o ~ y q ~ q l q m ~ ~ m ~ ~ r n ~ w ~ o w m o ~ o ~ ~ m - ~ ~ w ~ w o ~ ~ w ~ o r n o o ~ m ~ ~ ~ ~ ~ 2 s I

~ ~ b C O ~ b - ~ b L O ~ r C D C D N C 9 W O ~ N ~ ~ C T I ~ ~ - ~ O ~ W C O C D O N ~ ~ ~ ~ q ~ ~ ~ q ~ q o o q ~ q ~ - q o ~ - o q ~ o o ~ o q y q ~ o o o ~ ~ y y ~ s ~ o o o o o o o o o o o o o o o o ~ o o o o o o o o o o o o o o o o o o

- N o o N b N a a b b a m a m O N o N m O w b b O O m m O o m m a m m l m q ~ q y q q - q q o a y q y o q y q ~ q q y ~ q ~ y q q q q y q o q q q ~ q g m n r - o m N b - o w N b m b m o N N q - m w - - w o o m m m - o - - N m , r 2s r r - v 7

m ~ m a ~ o ~ ~ a ~ ~ o m m ~ o a a o ~ o - m - o - ~ m m a m m ~ m a m ~ w 0 c o c q ( ? c q Y o ! r 9 ? ? q c q c q T 9 h ! Q ! m 9 9 o ! q 9 Q ! m - 9 c ? Y I n 9 ? m ? Q ! q c q ~ ~ o o - - o - - o ~ o N o o ~ - N o N N - N - ~ N - N . ~ o ~ o o ~ ~ ~ N - - ~ CC) N m a b m a m o - N N b a m o m ~ w m b a a a a w N a ~ m o N a - m Q , 0 , 0

q q y q l q q q q w q q q q y y o o y p q y q q c : q q y q y q q y q q q q ~ q g r ~ a m ~ o , m ~ w w ~ ~ ~ - ~ ~ o r - o m o w o , m m m a o m o ~ m w m m a m ~ ~ T - - I-. F F - 7 r - - 7 2s I

8 s m m N b a - - 7 a ' m ! 9jq - 919 - - 2 - 9 9j7 8 8 7 Y - - . - y 7 - 8 y y r - 0 0

0 o o o 0 v v v

7 7 7 9 " v v

9 9 9 9 9 9 9 9 9 9 9 9 v v v v v v v ~ v v v v v

9 I v

orb a - b N I ~ b .- 7 m - F a N b w a a (13 N o mlw o m o m a a T b m m 8 r a1w ~ y q ~ y ~ q y y y q y y o y q l y y q q q q q q 0 3 q q 9 y q 1 q " : q q q q c q q l q m b * . o b ~ o m - a m - r ~ ~ - ~ ~ ~ ~ o w a w N o m - o t - a a r - ~ w m m I w 0 s - Y - 7 F Y 7

~ m m ~ ~ o w w ~ ~ m m o m a ~ ~ ~ ~ m m r n m ~ m o a o o m ~ ~ v m ~ ~ ~ ~ o 7 q~qq~q lqqqq y q y q y qlqq q q q y q y q y q q q q 9 7 y y q aqaqqq m m m - w ~ w ~ w w m w ~ w m ~ w a ~ m o m w m ~ m m m - m m w - m l o w m ~ ~ m

I I

m a l a l m a a a a a I

IY m a N ~ I ~ I W b b .- I a a ala a o g z ~ ~ Z : $ 2 2 2 2 $ ~ z ~ $ g $ $ g ~ g $ g $ g ; 5 $ ~ ; 5 $ $ g g 1 ; ; w a g ~ g

Z Z Z ' Z Z l Z 1 Z Z Z Z Z ~ ~ ~ m 1 m m m m m m m m ~ ~ a a a ~ m m m ~ ~ ~ r . r ~ ~ r 2 E I Y E E ' E ~ E E E E E E N N N N ~ N N N N N N J N N N N N N N N N N N N N N N I N a ~ - r F 7 - F r 7 7 ~ - ~ ~ y ~ - F - r ~ ~ ~ ~ F r r y - 7 7 - 7 ~ ~ F ~ F r a z 0000'01000000000000000000~0000000000000'0


- --

SAMPLE NUMBER -

01Z158E 01Z160A 0121678 0 1 ~ 1 7 6 ~ 0 1 ~ 1 8 5 ~ 01 Z186A 01Z209A 01Z225A 01Z230A 01 Z235A 01 Z237A 01 Z245A 01Z250A 01Z254A 01 ~ 2 5 6 ~ 01 Z258A 0 1 Z262A 0 1 Z267A 01 Z272A

A1203 %

13 .56 13.46 15.96 15.62 16.58 14.87 13.41 9.62

17.13 18.69 12.91 1351 14.30 15.56 18.61 13.62 18.09 16.52 10.32

- CaO - -- - 1Cr-203 - - - -

% 1% - Fe203 - K 2 0 -

x 1 % 3.58 5.61 1.34

10.48 -6.89 3.12 2.27 0.52 3.66 6.25 8.30 4.75 5.08 9.24 9.91 0.81 5.90 2.61 1.90

0.01 0.02

c.01 --0.07 c.01- c.01 c.01

0.01 c.01- c.01

0.10 c.01 c.01 c.01 <.01 c.01 c.01 c.01 c.01

MgO x

P205 Si02 Ti02 - - - - - -- .

x 1 % 1% LO1

2.13 2.28 4.75 3.75 4.72 4.37 3.78 1.52 5.97 4.82 3.14 3.41 2.07 3.38 3.87 3.55 3.04 4.25 3.02

4.97 5.88 0.53

10.01 9.53 3.43 3.66 2.45 1.55

10.54 8.62

10.78 7.05

12.32 -8.66 3.23 6.94 2.73 2.84

0.08 0.11 0.04 0.18 0.09 0.10 0.07 0.07 0.06 0.11 0.09 0.18 0.41 0.38 0.08 0.05 0.19 0.08 0.09

1.94 1.23 0.45 1.22 1.77 0.62 1.58 1.23 0.75 1.08 1.86 1.14 1.25 0.69 1.59 0.44 1.19 0.72 1.52

0.09 0.09 0.01 0.14 0.16 0.06 0.07 0.04 0.02 0.16 0.21 0.24 0.19 0.18 0.14 0.08 0.06 0.05 0.05

67.90 64.52 70.28 52.00 51.50 71.24 70.38 78.78 67.97 52.52 50.88

2.481 2.39 2.021 3.51

0.42 0.47 0.08 1.17 0.97 0.35 0.38 0.38 0.17 0.84 0.34

3.58 0.27 0.82 0.55 1.78 3.56 0.80 1.00 2.09 0.35 3.94 1.21 1.12 4.76 3.13 3.28 1.26

99.70 99.29 98.05 99.54 98.50 99.52 98.30 99.00 98.69 99.26 99.12 98.17 99.10 99.34 99.19 98.38 98.36 99.40 98.69

0.15 4.60 5.43 0.77 0.79 0.69 0.34 3.11

10.41 3.17 2.66 3.80 4.35 0.79 2.42 1.17 0.74

86 74 72 12 28 18 54 86 20

44 16 82 24 32

104 96 80 54

1220 630

5240 100 310 160 840

1000 1000 510

1250 230

2330 240 310

1550 1250 2120 630

59.621 0.98 60.99 51.03 50.12 70.55 56.28 67.31 76.48

10

e l 0 10

40- e l 0

20

3 0 ~ 1 0 < l o 4 0

20 10

4 0 10

< l o 20--- 20

0 80 1.50 0.68 0.31 0.95 0.35 0.40

--- l o - - -

--- --- --- ---

l o - - - ---

l o - - - --- --- --- --- --- --- --- ---

---

22 24

8 26 18 38 26 20

18 14 30 46 26 16 36 26 10 24

130 110 40 90 60

230 130 220

90 50 30 80

180 110 60

150 110 90

240

0.12 0.06 0.78

c.01 0.01 c.01 0.09 0.12

8 0 . 1 3 0.09 0.14 0.01 0 28 0.01 0.01 0.18 0.12 0.24 0.06

m a a a a a a a a a a S S S ~ E S S S E ~ ~ Z ~ ~ ~ S S ~ ~ ~ ~ ~ m m a m a ' a m m ~ a a a m r n u n ~ ~ ~ ~ ~ ~ ~ a - - y - - 7 - - - 7 7

~ p o Z % ~ , ; 1 2 ~ s s a ~ ~ ~ s ~ 3 r 3 3 S S S 3 z z 3 3 3 3 ~ S S S ~ 3 ~ 3 I z ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ m m m m m m m m m m m m m m m m m m m m m Y Y Y Y Y ~ Y Y Y Y Y Y Y Y Y Y Y Z Z Z Z I Z I I I I I I I I I P Z Z Z P Z a ~ 7 - - 7 7 - 7 7 - 7 7 7 7 7 - 7 7 7 7 7 y y 7 7 y 7 7 7 F 7 y - - 7 - - 7

V)Z ~ 0 0 0 0 0 , 0 0 ~ ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

E 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 n - - 7 7 7 - 7 7 7 - - - 7 y - - - - - 7 y - 7 F 7 F - - 8 - - 7 y y y 7 7 y

S n v v v v v ~ v ~ v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v I

E n w w w w w / w w ~ w w w w w w w w w w w w w w w w w w w ~ w w w w w w w ~ w w w w

3 n v v v v 1 v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v

E g g i e l ~ ~ ~ w w ~ C O o co ?,a co COCOwNCO 7

g B $ Q Q ! w w w w w w w 1 w w w * I * w w ' w V V V V V V V V Q v v v v v v v

0 0 0 0 0 0 0 0 0 0 0 0 0 0 E ~ ~ ~ E W ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ O ~ O O ~ O ~ O O O ~ ~ O O ~ O O O Q 7 7 7 - 7 y -?-7 7 7 7 - y y 7 - 7

~ n v v v 1 v v v v v v v v t v v v v v v v 000100 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0

~ ~ ~ g ~ ~ l ~ * ~ N . ; r W ~ I n ( . , ~ m ~ N ~ ~ ~ ~ ~ I n o O o ~ - ~ ( D C V ~ N ( . , o o o - - - 7 7 7

0 q v v v v v v v v v v v v v v v v

E m m 9 m m o m m m m o m m 7 I 7 7 m m m m l m m m m m m m m m m m m m m m m ~ m s

a n v v v v v v v v v v v v v v v v v v v v v w - w C O ~ - ~ 7 w a a 7 m b O b ~ b w 7 w C O - w 7 o C O w C O * 7 C O C V b - o v Q $ , : , : o o ~ q I o 1 , : o o , : o o , : q o y o - o o y o o y o y y o ~ ~ ~ q o ~ ~ y

V) O O O O O O O l O O O O O O O O O O O ~ 0 1 0 O O O O O O O O O O O O O O O O

a 3 F 7 p F F F F 7 F - 7 7 p p F y F 7 v 7 7 7 7 y F 7 7 7 7 7 7 7 y F F 7 7 o z O O O O O O O O l O O O O O O O O O O O O O O O O O 0 ' 0 O O O O O O O O O O

E O O O O O O O O O O O O O O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 Q F ~ F F F F ' ~ ~ ~ - ~ - - T - I ~ ~ ~ ~ F F Y F F F F Y ~ ~ ' ~ Y ~ ~ ~ F F -

~ Q V V V V V V V V V V V V V V ~ V V V V V V V V I V V ~ V V V V V V V V V V V ~ V

- E 2' bl(&o F 7 7 F

N bN(Daa3N NIN b a 3 b i b - T a b b b b l b b W b b 8 F a V V V V V V V V V I b b b - I y

v v V I b b b l W ' W b v v v V I V v

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 E ~ r \ l ~ ~ ~ r o ~ c \ l b r O O O ~ r \ l o 0 N N N N N g ~ b b 7 ~ g 1 ~ ~ y ~ g ~ m m m a 7 F - 7 1 7 7 a v v v v I v v v I V v V ' V v v I

E O O O O O O O O O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 010 0 0 b N b (V (V b blN $ a - CV b , a b b cr) v b d g'g,(D b (V g g,71g 0 m b ' m l m s E v I v ' V v v v v

E z z s m 1 m m ln mI miml m m m m: m s2 m a m m m m m m m I m m m m m m, a a v v v v v v v I v v v v v v v v , v , v v , v m m m , m m '"m

m ~ m ~ o m ~ a m m ~ m ~ m ~ ~ m ~ m m m m ~ ~ a ~ ~ ~ m ~ ~ ~ ~ m m ~ ~ ~ ~ ~ Q $ 0 0 0 0 y 0 l ~ 0 0 ~ 0 ~ 0 0 0 0 0 0 0 0 0 0 y ~ ' 0 y y 0 0 y ' y 0 0 09'00 o O O O O O O O O O O O O O O O O O O O O O O O O O O O O O l 0 ' 0 O O ~ O i O O -


SrO %

0.02 0 05 0 . 0 4 4 0.01 0.04 0.05 0 . 0 9 ~ 5 0.01 0.011<5 0 . 0 4 4 0.12 0.03 0.04'<5

As ppm <5 <5

20 <5 <5

35

<5 <5

0.021<5

Ce ppm

10 60

<I0 10 30

< lo 50

40 10 10

0.04 0.18 0.02 0.02 0.09 0.03 0 . 0 3 ~ 5 0.03 0.14 0.01 0.05 0.03 0.03 0 . 0 3 ~ 5 0 . 0 3 4 0.02 0.01 0.07 0.01 0.02 0.02 0.11 0.09

La ppm <I0

40 10<10

< I0 < I0

10 2 0 ~ 1 0

< lo 30

10<10 20

< I0 < I0

10 30 70 20 50

< I0 30

<I0 10 90 50 20 50 10

20 20 30 50 40 40

100 90

<5 5

<5 5 5

<5

<5 5

10 <5 <5 <5

<5 <5

5 <5 <5 <5

10 <5

4 0 20 30

< I0 20

< I0 10

4 0 4 0

60 20 10 30

<I0 10<10 2 0 4 0

10 10 10 20 20 20 60 50

ppm ppm <I0 <I0 110 <I0 <I0 (10 <I0 < lo <I0 <I0 <I0 <I0 <I0

ppm

<4 <4

<4 8

<4 - 8 -

<4

NUMBER SAMPLE

OIRN61B 01RN75A 01RN102B OlRN117A 01RN128A 0 1 ~ ~ 1 3 4 ~ 01RN136A OIRNISIA 01RN157A 01RN167A OlRN171A OlZ l lA 01Z19A

< I 0 <I0 <I0 <I0 <I0 <I0 <I0 e l0

<4 <4

8 < 4 <4 <4 <4 <4 <4

01Z21A 012338 01Z35A 01Z36A 01Z50A 01Z58A 012538 0 1 ~ 6 1 ~

Th !"

012638 <1001Z65A

01Z70A 01Z72A 0 1 ~ 8 1 ~ 01Z82A 01Z92A 0 1 ~ 9 3 ~ 01Z95A 01Z98A 01Z108A 01Z121A 01Z126A 01Z132A 01Z158A 01Z158C

<4 8

<4 <4

4 4

<4 <4

<4 - 8

<4 <4

<4 24<4 12

<4 -12

<4- <4 <4 <4 <4

8 12 12 8

12 16

<4 <4 <4 <4 <4 <4 <4 <4

8 < 4 <4 <4 <4 <4

<4 ,<I0

<4 <4 < 4 <4 <4 <4 <4 <4 <4 <4 <4 <4 <4 <4

<I0 4 0 ~ 1 0 <I0 <I0 <I0 <I0 <I0 <I0 <I0 <I0 <I0 <I0 4 0

Table 5. Concentration of rare-earth elements in rock samples collected in the Eagle and Tanacross quadrangles.

Y PPm 25.5 15.5

16 40 18

33.5 - -

13 19.5

21 17.5

Th PPm

< I < l

1 1

~1 <1 <1 < I < I

Yb PPm

2.5 1.7 1.7 4.2 1.8 3.3 1.4

2 2.4 1.8

Pr PPm

2.2 2.3 1.7 3.3 2.2 2.8 1.3 1.9 1.9 1.7

SAMPLE 00DS020 00RN143

Tm PPm

0.4 0.2 0.2

0.2 0.5 0.1 0.3 0.3 0.3

Lu PPm

0.4 0.21 0.3 0.7 0.3 0.6 0.2 0.3

UTM E 453364 465687

SAMPLE D~SCRlPTlON 00DS020 00RN143 01 JEA238A 01 MBWI 8 7 ~ 01 M B W ~ ~ ~ B 01 MBW304A - 0 1 ~ ~ 1 0 2 k 01 RN167A

UTM N 71 19650 71 18146

U PPm

0.5 0.5

c.5 0.6c.5

0.5 c.5 c.5 <.5 <.5 c.5

Nd PPm

10 10

7.5 16.5

9 14 6

9.5

Sm PPm

2.7 2.6 1.9 4.7 2.2 4.2 1.7 2.6 2.4 2.2

8.5 8

Ce PPm

15 15.5 13.5 23.5

1 6 20

10.5 14

Er PPm

3.2

Tb PPm

0.6<1 0.4 0.4

1 0 .5 0.9 0.3 0.5 0.6 0.5

Quadrangle

Gd PPm

3.4

01 Z092A 01Z185A

Dy PPm

4.1 2.5 2.8 7.1 2.9

6 2.2 3.5

Eu PPm

1

Rock Type Eagle A-2 I Biotite-rich amphibolitej 1 1 Eagle A-2 ~ornblende plagioclase gnelss and amphibode

0.7 0.6

Ho PPm

1

14.5 12.5

2.4 1.9

1.8 1.7 4.3

3.7 1 . 4 2.1

La PPm

6 0.6 0.6 1.5 0.6 1.2 0.5 0.7

3.6 3.1

6.5 6

9.5 9 8 5

5.5 1

0.8

0.8 2.4 0.71 2.5

3.2 2.7

1.6 1.7-0.7

1.5 0.7

1

6.2 2.8 5.5

2 3.3

Table 6. Coal Quality Analysis of Coal-bearing Tertiary Sedimentary Rocks in the Chicken Area.

Coal Analysis

Chicken Creek Sample # 00MBW807

Proximate Analysis

Ultimate Analysis

Heating Value (BTUILb) Free Swelling Index Equilibrium Moisture

UTM E 454630

Air Dry Loss (%) 19.91

Moisture Ash Volatile Matter Fixed Carbon

Hydrogen Carbon Nitrogen Sulfur Oxygen Ash

Geochemical Testing, a division of Energy Center, Inc.

UTM N 71 05799

Residual Moisture (%) 9.02

I

Quadrangle Eagle A-2 1

As Received

27.13 23.80

I 25.48 ! 34.96 48.07

I 23 59 1 32 37 , I I

I I I

I 5.21 2.98 4.42 1 32.77 44 97 66.78 0.66 0.90 1.34 1 0.23 0 32 1 0.47 37.33

18.16 I 26.99 23.80

5,310 -

0.5 26.71

Dry

32.67

Dry Ash-Free

51.93

32.67

7,287 10,823

Table 7. Detection limits for geochemical analyses.

(Analytical methods: FA-AAS = Fire Assay-Atomic Absorption Spectroscopy, ICP-AES =

Inductively Coupled Plasma-Atomic Emission Spectroscopy. FA-GRAV = Fire Assay- Gravimetric. FA-ICP-ARRAY = Fire Assay-Inductively Coupled Plasma FA-ICPMS = Fire Assay-Inductively Coupled Plasma Mass Spectrometry and AAS = Atomic Emission Spectroscopy) (ppm=parts per million. ppb=parts per billion. %percent. g/t=grams/tonne)

Table 8. Detection limits for major-oxide, minor-oxide and trace, and rare-earth element analyses. (*LO1 = Loss on ignition. ppm = parts per million. XRF = X-ray diffraction)

Table 9. Detection limits for rare-earth element analyses in Table 5. (ppm =parts per million, ICP-MS = Inductively Coupled Plasma Mass Spectrometry)

major oxide, minor oxide, trace element, rare-earth...

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