World Data Service for Geophysics

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

doi:10.7289/V5H41PB8


Repository: URI [Contact the Curator]
Ship: Thomas G. Thompson
Cruise: TN273
Sample: TN273-01D
Device: dredge, rock
Latitude: 12.99613 to 12.99623
Longitude: 143.62335 to 143.62488
Water Depth(m): 2885 to 2855
Date: 20111227 to 20111227
PI: Katherine Kelly
IGSN: URI900037
Storage: room temperature, dry
Province: ridge crest

<1kg of lava. One fist-sized rock fragment and small glass fragments. Collected from a spreading center ridge axis, Mariana trough, line upslope just off ridge axis to west; hummocky terrain from backscatter image.
1 :    IGSN URI900038  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt, vesicular (>10% vesicles)
Weathering/Metamorphism: weathering - light
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-01D-01-01. Vesicular glassy lava; minor weathering (red-orange platy)
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