World Data Service for Geophysics

Index to Marine and Lacustrine Geological Samples (IMLGS)
an international partnership

doi:10.7289/V5H41PB8


Repository: SOEST [Contact the Curator]
Ship: Melville
Cruise: BMRG06MV
Sample: BMRG06MV STA66 RD66
Device: dredge, rock
Latitude: -37.80183
Longitude: 77.99167
Water Depth(m): 2025 to 1845
Date: 19960326
PI: Kevin Johnson
Storage: room temperature, dry
Province: rise or ridge, aseismic ocean

Southeast Indian Ridge; Sampling locale: axial deep to top of split edifice at northwest end of segment I2.
1 :   
Weathering/Metamorphism: weathering - moderate
Comments: Sample Type: Pillow basalt. Mineralogy: Plagioclase. Weathering: Moderate. Glass condition: >50% fresh glass and Mn/Fe oxide coatings. 1 sample bag. Probe glass taken. 66-1 and 66-2 subsampled by DG; 66-4 whole rock subsampled by KN. All other glass to KJ.Weathered pillow basalt fragments with glass rinds up to ~1 cm thick coated with Fe/Mn oxides, and containing plagioclase phenocrysts. Type 1 (only type) of this dredge.
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