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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 STA09 RD07
Device: dredge, rock
Latitude: -15.11717
Longitude: 173.26033
Water Depth(m): 4000 to 3000
Date: 19870125
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: Dredge haul consisted of 300 lbs (approx) of rocks mostly basalt; 50 lbs orange-brown sed withMn coating; all samples are very old, are coated with lots of Mn and glass (where it remeains is badly altered). 11 numbered samples. Sample 1,2,5,6,8,9 - pillow fragments; fine to medium grained; 0-8 mm glass mostly badly altered; aphyric; 0-3 mm Mn and/or Mn + palagonite (except #2 1-9 mm unlayered Mn); minor vesicles .1-1 mm <1%-2%. Sample 3 - pillow frag (?); pc phyric; 0-15 mm Mn; .2-3 mm vesicles; alteration rind visible on cut sfc. Sample 4 - breccia; 3 (1 x 3 cm) fg. aphyric clasts of basalt with0-2 mm glass set in clay (palagonite + Fe oxide) matrix with glass shards. Sample 7,11 - block fragment, no glass, aphyric, no vesicles, minor palagonite/Mn coating. Sample 10 - pillow frag - 0-9 mm glass; upper 3 mm badly altered; 0-11 mm Mn - 2 layers - upper black lower orange; aphyric.

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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