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Repository:	URI	Latitude:	12.3888 to 12.39131
Ship:	Thomas G. Thompson	Longitude:	143.78376 to 143.78604
Cruise:	TN273	Water Depth(m):	3524 to 3434
Sample:	TN273-31D	Date:	20120115 to 20120115
Device:	dredge, rock	PI:	Katherine Kelly
Storage:	room temperature, dry	IGSN:	URI900202
8kg of lava/sediment. 1 large rock, 4 small (~10cm sized rocks), brown sediment in pipe dredge. Collected from a forearc rift, SE Mariana forearc rift, bottom of ridge from caldera 2.

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TN273 data at R2R

1 :    IGSN URI900203
Lithology and Mineralogy:	igneous (extrusive/volcanic), basalt
Weathering / Metamorphism:	weathering - moderate
Glass and remarks:	some samples with fresh glass & Mn/Fe oxide coatings
Comments:	Sample TN273-31D-01-01. Rift bottom. basalt with 5% by volume 1-2mm in diameter olivine, <1mm thick manganese crust, bimodal vesicles: 1% by volume 2-5mm in diameter, 5% by volume <1mm in diameter; 33cm in size
2 :    IGSN URI900204
Lithology and Mineralogy:	sedimentary (chemical), Mn/Fe oxide crusts and nodules
Comments:	Sample TN273-31D-01-02. Rift bottom. basalt with 5% by volume 1-2mm in diameter olivine, <1mm thick manganese crust, bimodal vesicles: 1% by volume 2-5mm in diameter, 5% by volume <1mm in diameter; 13cm in size
3 :    IGSN URI900205
Lithology and Mineralogy:	igneous (extrusive/volcanic), basalt, vesicular (>10% vesicles)
Glass and remarks:	some samples with fresh glass & Mn/Fe oxide coatings
Comments:	Sample TN273-31D-01-03. Rift bottom. basalt with 5% by volume 1-2mm in diameter olivine, <1mm thick manganese crust, bimodal vesicles: 1% by volume 2-5mm in diameter, 5% by volume <1mm in diameter; 11cm in size
4 :    IGSN URI900206
Lithology and Mineralogy:	igneous (extrusive/volcanic), basalt, vesicular (>10% vesicles)
Glass and remarks:	some samples with fresh glass & Mn/Fe oxide coatings
Comments:	Sample TN273-31D-01-04. Rift bottom. basalt with 5% by volume 1-2mm in diameter olivine, <1mm thick manganese crust, bimodal vesicles: 1% by volume 2-5mm in diameter, 5% by volume <1mm in diameter; 7cm in size
5 :    IGSN URI900207
Lithology and Mineralogy:	igneous (extrusive/volcanic), basalt, pillow
Glass and remarks:	some samples with fresh glass & Mn/Fe oxide coatings
Comments:	Sample TN273-31D-01-05. Rift bottom. basalt with 5% by volume 1-2mm in diameter olivine, <1mm thick manganese crust, bimodal vesicles: 1% by volume 2-5mm in diameter, 5% by volume <1mm in diameter; 6.5cm in size
6 :    IGSN URI900208
Lithology and Mineralogy:	igneous (extrusive/volcanic), basalt, pillow
Glass and remarks:	some samples with fresh glass & Mn/Fe oxide coatings
Comments:	Sample TN273-31D-02-01. Rift bottom. silty mud about 80% by volume, 20% by volume foraminifera and glass fragments