World Data Service for Geophysics

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


Repository: SOEST [Contact the Curator]
Ship: Melville
Cruise: BMRG06MV
Sample: BMRG06MV STA87 RD77
Device: dredge, rock
Latitude: -32.94533
Longitude: 77.8155
Water Depth(m): 2744 to 2925
Date: 19960404
PI: Kevin Johnson
Storage: room temperature, dry
Province: rise or ridge, aseismic ocean

Southeast Indian Ridge; Sampling locale: Axial valley - Seg F.
1 :   
Weathering/Metamorphism: weathering - fresh
Comments: Sample Type: Plg-phyric basalt. Mineralogy: Plagioclase. Weathering: Fresh. Glass condition: >50% fresh glass. 1 bucket. Probe glass taken from 77-1, 77-2, 77-3, 77-4 with remainder to KJ. DG subsampled 77-1, 77-2. KN 77-3. Two relatively large and several smaller unnumbered samples included in bucket.Approx. 20 kg of glassy pillow buds containing plag megacrysts concentrated in pillow rind (outer 3 cm). Only type (1) in this dredge.