OLR (1985) 32 (12) 1015

85:7058 Zarba, M.A., O.S. Mohammad, V.C. Anderlini, P.

Literathy and F. Shunbo, 1985. Petroleum residues in surface sediments of Kuwait. Mar. Pollut. Bull., 16(5):209-211. Kuwait Inst. for Sci. Res., Kuwait.

C240. Corrosion

85:7059 Dhar, H.P., R.E. White, G. Burnell, L.R. Cornwell,

R.B. Griffin and R. Darby, 1985. Corrosion of Cu and Cu-Ni alloys in 0.5M NaCI and in synthetic seawater. Corrosion, 41(6):317-323.

Corrosion characteristics of Cu and 90Cu-10Ni alloy in both media and of 70Cu-30Ni alloy in 0.5M NaC1 were similar based on the Tafel extrapolation procedure (and for Cu, the linear polarization method as well). Mechanisms responsible for vari-

ations in corrosion potential, corrosion current and anodic partial current are discussed. Energy Res. Corp., Danbury, CT 06810, USA. (msg)

C290. Miscellaneous

85:7060 tOygard, K., O. Grahl-Nielsen and S. Ulvoen, 1984.

Oil/oil correlation by aid of chemometrics. Org. Geochem., 6:561-567.

Twenty crude oils from 10 wells in a North Sea oil field were correlated by multivariate analysis of gas chromatographic parameters. The whole oil chro- matograms showed distinct differences between oils from different formations due to differences in biodegradation; however, they were insufficient for a complete classification. That was achieved by the chromatograms of the aromatic fraction, among which the biphenyls were best suited for classifi- cation. Explor. and Prod. Lab., P.O. Box 300, 4001 Stavanger, Norway.

D. SUBMARINE GEOLOGY AND GEOPHYSICS

DI0. Apparatus and methods

85:7061 Dilks, A. and S.C. Graham, 1985. Quantitative

mineralogical characterization of sandstones by back-scattered electron image analysis. J. sedim. Petrology, 55(3):347-355. Shell Res. Ltd., Thorn- ton Res. Centre, P.O. Box 1, Chester CH1 3SH, UK.

85:7062 Duckworth, G.L. and A.B. Baggeroer, 1985. Inver-

sion of refraction data from the Fram and Nansen basins of the Arctic Ocean. Tectonophysics, 114(1-4):55-102.

Twenty-five hydrophone arrays and new methods for processing and inverting have shown their effectiveness in determining crustal structure 'under the constraints of the Arctic ice pack.' The Fram 2 and Fram 4 experiments and methods are described here. One series of lines was shot in the Polar

Abyssal Plain (Fram Basin), the other in the Nansen Basin, thus flanking the Nansen Ridge Spreading Center. Dept. of Earth, Atmos., and Planet. Sci., MIT, Cambridge, MA 02139, USA. (fcs)

85:7063 Kennedy, S.K., T.P. Meloy and T.E. Durney, 1985.

Sieve data---size and shape information. J. sedim. Petrology, 55(3):356-360.

Sediment with the largest harmonic amplitudes was also that with the longest residence time within the cascadograph; that is, it takes longer for more irregularly shaped particles to pass a sieve than more equant and smooth particles. Thus, sieve analysis results are a function of the sample shape distri- bution as well as size distribution. The cascadograph is a successful and relatively simple shape analysis tool and its results correlate with those of Fourier methods. Dept. of Geol. and Planet. Sci., Univ. of Pittsburgh, PA 12560, USA.