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Index to Marine and Lacustrine Geological Samples

Repository: URI Latitude: 12.51361 to 12.51533
Ship: Thomas G. Thompson Longitude: 143.61344 to 143.61485
Cruise: TN273 Water Depth(m): 2743 to 2666
Sample: TN273-26D Date: 20120112 to 20120112
Device: dredge, rock PI: Katherine Kelly
Storage: room temperature, dry IGSN: URI900158

sediment. Fine grained brown sediment. Collected from a forearc rift, SE Mariana forearc rift, volcanic mound between calderas 1 and 2.

Contact URI TN273 data at R2R
1 :    IGSN URI900159  
Lithology and Mineralogy: sedimentary (chemical), Mn/Fe oxide crusts and nodules
Comments: Sample TN273-26D-01-01. Rift bottom. light brown, very porous, fine grained sediment with possible dark volcanic fragments
2 :    IGSN URI900160  
Lithology and Mineralogy: sedimentary (chemical), Mn/Fe nodules
Glass and remarks: some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-26D-02-01. Rift bottom. very altered manganese coated lava, no visible phenocrysts, 5cm in size
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