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: TN273-32D
Device: dredge, rock
Latitude: 12.33917 to 12.34305
Longitude: 143.71839 to 143.72346
Water Depth(m): 3451 to 3374
Date: 20120115 to 20120115
PI: Katherine Kelly
IGSN: URI900209
Storage: room temperature, dry

25kg of lava/sediment. 1/4 bag full of Mn coated pillows and sediment in pipe dredge. Collected from a forearc rift, SE Mariana forearc rift, concial structure on W side of SEMFR.
1 :    IGSN URI900210  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-32D-01-01. Rift bottom. porphyritic, 10% plagioclase (1-3mm in diameter)- 1% olivine (1-3mm in diameter) pillow basalt, 5% by volume vesicles, 1mm thick manganese crust, 3mm thick glassy rind, 27cm in size
2 :    IGSN URI900211  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-32D-01-02. Rift bottom. porphyritic, 10% plagioclase (1-3mm in diameter)- 1% olivine (1-3mm in diameter) pillow basalt, 5% by volume vesicles, 1mm thick manganese crust, 3mm thick glassy rind, 17cm in size
3 :    IGSN URI900212  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-32D-01-03. Rift bottom. porphyritic, 10% plagioclase (1-3mm in diameter)- 1% olivine (1-3mm in diameter) pillow basalt, 5% by volume vesicles, 1mm thick manganese crust, 3mm thick glassy rind, 21cm in size
4 :    IGSN URI900213  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-32D-01-04. Rift bottom. porphyritic, 10% plagioclase (1-3mm in diameter)- 1% olivine (1-3mm in diameter) pillow basalt, 5% by volume vesicles, 1mm thick manganese crust, 3mm thick glassy rind, 14cm in size
5 :    IGSN URI900214  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-32D-01-05. Rift bottom. porphyritic, 10% plagioclase (1-3mm in diameter)- 1% olivine (1-3mm in diameter) pillow basalt, 5% by volume vesicles, 1mm thick manganese crust, 3mm thick glassy rind, 19cm in size
6 :    IGSN URI900215  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-32D-01-06. Rift bottom. porphyritic, 10% plagioclase (1-3mm in diameter)- 1% olivine (1-3mm in diameter) pillow basalt, 5% by volume vesicles, 1mm thick manganese crust, 3mm thick glassy rind, 21cm in size
7 :    IGSN URI900216  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass/remarks:notable Mn/Fe oxide coatings
Comments: Sample TN273-32D-01-07. Rift bottom. porphyritic, 10% plagioclase (1-3mm in diameter)- 1% olivine (1-3mm in diameter) pillow basalt, 5% by volume vesicles, 1mm thick manganese crust, 3mm thick glassy rind, 15cm in size
8 :    IGSN URI900217  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass/remarks:notable Mn/Fe oxide coatings
Comments: Sample TN273-32D-01-08. Rift bottom. porphyritic, 10% plagioclase (1-3mm in diameter)- 1% olivine (1-3mm in diameter) pillow basalt, 5% by volume vesicles, 1mm thick manganese crust, 3mm thick glassy rind, 22cm in size
9 :    IGSN URI900218  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-32D-01-09. Rift bottom. porphyritic, 10% plagioclase (1-3mm in diameter)- 1% olivine (1-3mm in diameter) pillow basalt, 5% by volume vesicles, 1mm thick manganese crust, 3mm thick glassy rind, 13cm in size
10 :    IGSN URI900219  
Lithology/Mineralogy: igneous (extrusive/volcanic), basalt, pillow
Glass/remarks:some samples with fresh glass & Mn/Fe oxide coatings
Comments: Sample TN273-32D-01-10. Rift bottom. porphyritic, 10% plagioclase (1-3mm in diameter)- 1% olivine (1-3mm in diameter) pillow basalt, 5% by volume vesicles, 1mm thick manganese crust, 3mm thick glassy rind, 20cm in size
11 :    IGSN URI900220  
Lithology/Mineralogy: sediments (unconsolidated), ooze, calcareous (>30% biogenous matter)
Comments: Sample TN273-32D-02-01. Rift bottom. sediment, silty mud (calcareous ooze) with 30% by volume sand size foraminifera grains and 70% by volume calcareious mud (coccoliths?)
12 :    IGSN URI900221  
Lithology/Mineralogy: sediments (unconsolidated), ooze, calcareous (>30% biogenous matter)
Comments: Sample TN273-32D-02-02. Rift bottom. calcareous ooze sediment nodules
13 :    IGSN URI900222  
Lithology/Mineralogy: sediments (unconsolidated), ooze, calcareous (>30% biogenous matter)
Comments: Sample TN273-32D-02-03. Rift bottom. calcareous ooze hard, shale-like sediment nodules
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