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: TN273-25D
Device: dredge, rock
Latitude: 12.44014 to 12.44108
Longitude: 143.65646 to 143.65999
Water Depth(m): 3495 to 3437
Date: 20120112 to 20120112
PI: Katherine Kelly
IGSN: URI900153
Storage: room temperature, dry

5lbs of lava. Four Mn coated rocks. Collected from a forearc rift, SE Mariana forearc rift, small volcanic mound cross cutting faults S of volcanoes.
1 :    IGSN URI900154  
Lithology/Mineralogy: sedimentary (chemical), Mn/Fe nodules
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-25D-01-01. Rift bottom. vesicular basalt, vesicles 1-3mm in diameter and 12% by volume, Mn coating, 100% plagioclase ( approximately 1mm), 4mm glassy layer
2 :    IGSN URI900155  
Lithology/Mineralogy: sedimentary (chemical), Mn/Fe nodules
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-25D-01-02. Rift bottom. vesicular basalt, vesicles 1-3mm in diameter and 12% by volume, Mn coating, 100% plagioclase ( approximately 1mm), 4mm glassy layer
3 :    IGSN URI900156  
Lithology/Mineralogy: sedimentary (chemical), Mn/Fe nodules
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-25D-01-03. Rift bottom. vesicular basalt, vesicles 1-3mm in diameter and 12% by volume, Mn coating, 100% plagioclase ( approximately 1mm), 4mm glassy layer
4 :    IGSN URI900157  
Lithology/Mineralogy: sedimentary (chemical), Mn/Fe nodules
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-25D-01-04. Rift bottom. vesicular basalt, vesicles 1-3mm in diameter and 12% by volume, Mn coating, 100% plagioclase ( approximately 1mm), 4mm glassy layer
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