World Data Service for Geophysics

Index to Marine and Lacustrine Geological Samples (IMLGS)
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Repository: URI [Contact the Curator]
Ship: Thomas G. Thompson
Cruise: TN273
Sample: TN273-07D
Device: dredge, rock
Latitude: 12.73017 to 12.72923
Longitude: 143.43512 to 143.43926
Water Depth(m): 2951 to 2897
Date: 20111229 to 20111229
PI: Katherine Kelly
IGSN: URI900083
Storage: room temperature, dry
Province: ridge crest

<1kg of lava. A few very tiny glass fragments in the burlap. Collected from a spreading center ridge axis, Mariana trough, steep slope perpendicular to spreading axis, just off of the center.
1 :    IGSN URI900084  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-07D-01-01. Glass fragments, <2 mm, black