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: TN273-17D
Device: dredge, rock
Latitude: 12.15702 to 12.15906
Longitude: 143.81194 to 143.81414
Water Depth(m): 5772 to 5469
Date: 20120109 to 20120109
PI: Katherine Kelly
IGSN: URI900125
Storage: room temperature, dry
Province: ridge crest

35kg of lava. 1 large gray rock. Collected from a forearc rift, SE Mariana forearc rift, smooth, dark feature in SW.
1 :    IGSN URI900126  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt
Glass/remarks:notable Mn/Fe oxide coatings
Comments: Sample TN273-17D-01-01. Rift bottom. microcrystalline basalt with 1% vesicles by volume, 55 cm in diameter