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: TN273-26D
Device: dredge, rock
Latitude: 12.51361 to 12.51533
Longitude: 143.61344 to 143.61485
Water Depth(m): 2743 to 2666
Date: 20120112 to 20120112
PI: Katherine Kelly
IGSN: URI900158
Storage: room temperature, dry

sediment. Fine grained brown sediment. Collected from a forearc rift, SE Mariana forearc rift, volcanic mound between calderas 1 and 2.
1 :    IGSN URI900159  
Lithology/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/Mineralogy: sedimentary (chemical), Mn/Fe nodules
Glass/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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