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Index to Marine and Lacustrine Geological Samples (IMLGS)

Repository: University of Hawaii at Manoa
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Ship: Moana Wave
Cruise: MW8701
Sample: MW8701 STA06 RD06
Device: dredge, rock
Latitude: -17.08517
Longitude: 173.893
Water Depth(m): 2040
Date: 19870122
Storage: room temperature, dry
Province: basin, small ocean

S Pacific Ocean, N Fiji Basin. Chain bag dredge. Field description: basalt
1 :   
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt
Comments: Recovery approximately 150 lbs of rock; 16 numbered (basalt) samples, 2 bags of unsampled material, mud & glass chips from pipe dredge. Samples 1,2 - extrusion textured, very glassy (1-10 mm); sparsely pc phyric; very minor Mn alteration, large (cm's) gas holes. Sample 3 - sheet flow frag, very fine grained, 0-3 mm aphyric glass on 2 sides; sparsely pc phyric; minor vesicles; minor Fe/Mn. Sample 4 - pillow frag; 0-4 mm glass; aphyric; 0-2 mm glass on bottom; minor palagonite, Fe, Mn; vesicular layer near top. Sample 5,6,10 - flow (pillow) frags with rough pock marked under sfc; 0-10 mm pc phyric glass; pc phyric rock (1-6 mm); medium grained; pipe vesicles, very minor palagomite. Sample 7 - mulitple layer flow frag, 4 glassy horizons + bottom, pc phyric rock & glass; sparsely vesicular; patchy palagonite, Fe oxide. Sample 8,12,13 - flow frags; fine to medium grained; glass on top & bottom, aphyric (11) to abundant pc (12); sparsely vesicular pipe vesicles; large gas holes; minor Fe oxidation. Sample 9 - pillow toe, 0-5 mm glass; cooling fractures; sparsely pc phyric; minor vesicles; minor palagonite. Sample 11 - flow frag, fine grained; aphyric; 0-4 mm glass; large vug on bottom; minor Fe oxide/palagonite; sparse vesicles. Sample 14 - contorted flow frag, 0-4 mm glass; sparsely pc phyric; pipe vesicles. Sample 15,16 - pillow frags; 0-4 mm glass; med. grained; sparesely pc phyric, scattered vesicles, minor pipe vesicles, patchy Fe/Mn, palagonite.

When you refer to individual samples/data in the IMLGS, please cite each source repository whose data you use.

More Information and how to cite the IMLGS: doi:10.7289/V5H41PB8.

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