World Data Service for Geophysics

Index to Marine and Lacustrine Geological Samples (IMLGS)
an international partnership


Repository: SOEST [Contact the Curator]
Ship: Kana Keoki
Cruise: KK840428-03
Sample: KK840428 STA43 RD14
Device: dredge, rock
Latitude: 31.06233
Longitude: 139.89333
Water Depth(m): 1800
Date: 19840624
Storage: room temperature, dry

Sumisu Jima Rift
1 :   
Comments: ~650 lbs. 13 bags, bag #13 is lab samples. >90% of the rock is aphyric to plagioclase phyric vesicular, gray to black basalt. Bag # 8 contains the other rock-type, which is a black, glassy, sparsely vesicular basalt containing plagioclase megaerysts and translucent olivine phenocrysts. There may be a small glass rind on some samples. Samples fracture easily conchoidally. All samples are very fresh. 19 buckets of samples.