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: TN273-23D
Device: dredge, rock
Latitude: 12.49111 to 12.49323
Longitude: 143.68517 to 143.68376
Water Depth(m): 3000 to 2922
Date: 20120112 to 20120112
PI: Katherine Kelly
IGSN: URI900139
Storage: room temperature, dry

0.3kg of sediment and Mn coated sediment rock in pipe dredge. Collected from a forearc rift, SE Mariana forearc rift, top of long ridge from caldera 2.
1 :    IGSN URI900140  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt, vesicular (>10% vesicles)
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-23D-01-01. Brown foraminferous, coarse grained sediment
2 :    IGSN URI900141  
Lithology/Mineralogy: sedimentary (chemical), Mn/Fe oxide crusts and nodules
Glass/remarks:notable Mn/Fe oxide coatings
Comments: Sample TN273-23D-02-01. Rift bottom. Mn coated sediment rock, 5 cm in diameter
3 :    IGSN URI900142  
Lithology/Mineralogy: sedimentary (chemical), Mn/Fe oxide crusts and nodules
Glass/remarks:notable Mn/Fe oxide coatings
Comments: Sample TN273-23D-02-02. Rift bottom. Mn coated sediment rock, 2 cm in diameter
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