25 qbb1063 earth processes

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UNIVERSTTI

TEKNOLOGI

P

ETRONAS

FINAL

EXAMINATION

SEPTEMBER 201 4

SEMESTER

COURSE :

QBB1063

EARTH PROCESSES

DATE

: 6th

JANUARY 2015

(TUESDAY)

TIME

=

2:30

PM

-

5:30

PM

(3

HOURS)

INSTRUCTIONS

TO CANDIDATES

1.

Answer

ALL

questions

from

this

Questions

Booklet.

2. Begin EACH

answer on

a

new

page

in

the Answer booklet

given.

3.

lndicate

clearly answers

that are

cancelled,

if

any.

4.

Where applicable,

show clearly

steps taken

in

arriving

at

the solutions and indicate

ALL assumptions.

5.

Do not open

this

Question

Booklet

until

instructed.

Note

: i. There

are SIX

(6)

pages

including

the cover

page

in this

Question

Booklet.

ii.

ONE

(1) graph paper

is

provided.

Universiti

Teknologi

pETRoNAS



a

I

QBB1063

1.

a.

Outline

the

factors

that

determine

the

rate of weathering.

[10

marks]

b. Assess

how

physical

weathering relates to

chemical

weathering

processes.

[5

marks]

c. Explain

the

formation

of tors

(a

product

of weathering on deep

granite).

[5 marks]



t



I

QBB1063

3.

Explain

how

each

of the following

types

of mineral

deposits

are formed,

and

give

an example

for each.

a,

Magmatic

mineral deposits.

[4

marks]

b.

Hydrothermal

mineral

deposits.

[4

marks]

c.

Sedimentary

mineral

deposits.

[4

marks]

d.

Residual

mineral

deposits.

[4

marks]

e.

Placer

mineral

deposits.

[4

marks]



a

Define

the

following

terms.

ln case

available

for

a term,

explain

why

do

you

QBB1063

that there

are

several definitions

prefer

the definition

you

are

giving:

V

il.

Sediment.

Bedform.

H

um

mocky

cross-stratification.

Sedimentary

basin.

[2

marks]

[2

marks]

[2

marks]

[2

marks]

An extensive

area

of today s

deep

seafloor located

at a circum-equatorial

latitude,

south

and southwest

offshore

the lndonesian

subduction

zone

and

trench,

has a

bathymetric

range

of over

6,000 m in

depth.

il

lndicate

the

type

of sediment

that is

being deposited in

this area.

[1

mark]

Explain

the reasons

for

the

answer

given

in

Q4.b.i.

[2

marks]

Evaluate

the

differences

between

a

delta

and an estuary, in

terms

of

physiography,

physical

and

chemical

conditions,

sedimentation

and

overall

biological

diversity.

[3

marks]

Outline

the

type

sedimentary

sequence

deposited during

the

regressive

evolution

of

a

tidal

flat, including

a supporting

diagram.

[4

marks]

Sedimentary basins

can

be classified

according to their

plate

tectonics

regime.

Evaluate

by

reasoning

which

type

of

basin has

the

highest

preservation

potential

and

which

one

has

the

lowest.

b

c

d

e

5

[2

marks]



QBB1063

5.

a, Describe

with

the aid of

a diagram

the

concept

of

hydrological

cycle.

[10

marks]

b.

Define

the

following

terms:

i.

Aquifer.

[2

marks]

[2

marks]

[2

marks]

[2

marks]

[2

marks]

-

END

OF

PAPER

-

þ

ii.

Groundwater.

iii.

Saturated

zone.

iv.

Hot

spring.

v. Evapotranspiration.

25 qbb1063 earth processes

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