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: KK830116-04
Sample: KK830116-4 STA27 RD25
Device: dredge, rock
Latitude: 21.60883
Longitude: 143.6473
Water Depth(m): 485
Date: 19830510
Storage: room temperature, dry

Mariana Crosschain. Two samples labeled 1, one sample labeled 2 and two samples labeled 6 available.
1 :   
Comments: 7 bags (at ~ 50 lb each) basalt or basaltic andesite, 3 or 4 large pillow fragments. Only a few (1 bag) are very fresh and few of those have glassy margins. Most have brown surfaces + fresh interiors, lots of worms + other beasties on rock surfaces. A couple of small chloritized pebbles. This dredge was taken from the floor of a cauldera (~ 1 x 1/2 mi) located at the summit of the cone.