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Index to Marine and Lacustrine Geological Samples

Repository: URI Latitude: 12.61658 to 12.61218
Ship: Thomas G. Thompson Longitude: 143.68281 to 143.68115
Cruise: TN273 Water Depth(m): 2662 to 2578
Sample: TN273-44D Date: 20120118 to 20120118
Device: dredge, rock PI: Katherine Kelly
Storage: room temperature, dry IGSN: URI900361

3.5kg of lava. Few rocks in bag and pipe dredge. Collected from a submarine arc, Mariana arc extension, young-looking flow on steep cone between calderas 2-3.

Contact URI TN273 data at R2R
1 :    IGSN URI900362  
Lithology and Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass and remarks: some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-44D-01-01. Rift bottom. pillow basalt, porphyritic, vesicles 5% by volume, olivine <1% by volume 1-3mm in diameter, clinopyroxene <1% by volume 1-3mm in diameter, 3mm thick manganese crust, 5mm thick glassy rind, 18cm in size
2 :    IGSN URI900363  
Lithology and Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass and remarks: some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-44D-01-02. Submarine arc. pillow basalt, porphyritic, vesicles 5% by volume, olivine <1% by volume 1-3mm in diameter, clinopyroxene <1% by volume 1-3mm in diameter, 3mm thick manganese crust, 5mm thick glassy rind, 7cm in size
3 :    IGSN URI900364  
Lithology and Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass and remarks: notable Mn/Fe oxide coatings
Comments: Sample TN273-44D-01-03. Submarine arc. pillow basalt, porphyritic, vesicles 5% by volume, olivine <1% by volume 1-3mm in diameter, clinopyroxene <1% by volume 1-3mm in diameter, 3mm thick manganese crust, 5mm thick glassy rind, 7cm in size
4 :    IGSN URI900365  
Lithology and Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass and remarks: some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-44D-01-04. Pillow basalt, porphyritic, vesicles 5% by volume, olivine <1% by volume 1-3mm in diameter, clinopyroxene <1% by volume 1-3mm in diameter, 3mm thick manganese crust, 5mm thick glassy rind, 6.5cm in size
5 :    IGSN URI900366  
Lithology and Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass and remarks: some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-44D-01-05. Pillow basalt, porphyritic, vesicles 5% by volume, olivine <1% by volume 1-3mm in diameter, clinopyroxene <1% by volume 1-3mm in diameter, 3mm thick manganese crust, 5mm thick glassy rind, 15cm in size
6 :    IGSN URI900367  
Lithology and Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass and remarks: some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-44D-01-06. Pillow basalt, porphyritic, vesicles 5% by volume, olivine <1% by volume 1-3mm in diameter, clinopyroxene <1% by volume 1-3mm in diameter, 3mm thick manganese crust, 5mm thick glassy rind, fragments
7 :    IGSN URI900368  
Lithology and Mineralogy: igneous (extrusive/volcanic), basalt, vesicular (>10% vesicles)
Comments: Sample TN273-44D-02-01. Basalt, aphyric, vesicles 1% by volume 1-3mm in diameter, segregation vesicles, clinopyroxene <1% by volume 1-2mm in diameter, 9cm in size
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