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: TN273-22D
Device: dredge, rock
Latitude: 12.36307 to 12.36476
Longitude: 143.6801 to 143.68243
Water Depth(m): 3890 to 3814
Date: 20120112 to 20120112
PI: Katherine Kelly
IGSN: URI900136
Storage: room temperature, dry

10-20kg of lava. One very large rock. Collected from a forearc rift, SE Mariana forearc rift, volcanic ridge.
1 :    IGSN URI900137  
Lithology/Mineralogy: sediments (unconsolidated), sand, calcareous (forams/pteropods)
Comments: Sample TN273-22D-01-01. Altered vesicular lava, vesicles 1-2 mm, approximately 2-3% by volume; dark mineral (saponite?) approximately 1 mm in diameter and approximately 5% by volume present; 3 mm glassy margin
2 :    IGSN URI900138  
Lithology/Mineralogy: sedimentary (chemical), Mn/Fe oxide crusts and nodules
Glass/remarks:notable Mn/Fe oxide coatings
Comments: Sample TN273-22D-02-01. Rift bottom. very fine grained, medium to light brown sediment
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