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 STA41 RD54
Device: dredge, rock
Latitude: -39.45
Longitude: 78.09217
Water Depth(m): 2310 to 2140
Date: 19960318
PI: Kevin Johnson
Storage: room temperature, dry
Province: rise or ridge, aseismic ocean

Southeast Indian Ridge; Sampling locale: wall of axial deep segment J2.
1 :   
Comments: Sample Type: Aphyric_Pillow basalt. Mineralogy: very sparse plagioclase. Weathering: light to moderate weathering. Glass condition: Some fresh glass and Mn/Fe oxide coatings. 2 buckets.Glass taken for KJ, DG and probe from 54-1, 54-3. Glass taken for KJ and probe from 54-2. Small bag of unumbered samples and numbered samples placed in bucket.Lighly to moderately weathered, Mn-coated aphyric pillow basalts with small amounts of glass. Type 1 of this dredge.
2 :   
Comments: Sample Type: hackly lavas. Mineralogy: aphyric. Weathering: light to moderate weathering. Glass condition: Mn/Fe oxide coatings. 2 buckets.Glass taken for KJ and probe from 54-5 & 54-6. Small bag of unumbered samples and numbered samples placed in bucket.Lighly to moderately weathered, Mn-coated, hackly, aphyric basalts with elongated vesicles. Samples have a very small amount of glass. Type 2 of this dredge.
3 :   
Comments: Sample Type: aa lavas. Mineralogy: aphyric. Weathering: light to moderate weathering. Glass condition: Mn/Fe oxide coatings. 2 buckets.KN subsampled 54-9. No glass available. Samll bag of unumbered samples and numbered samples placed in bucket.Lighly to moderately weathered, Mn-coated, aphyric aa basalts. Type 3 of this dredge.
4 :   
Weathering/Metamorphism: weathering - moderate
Comments: Sample Type: Pillow basalt. Mineralogy: aphyric. Weathering: Moderate. Glass condition: No glass and light Mn/Fe coating. 2 buckets.KN subsampled 54-11. No glass available. Small bag of unumbered samples and numbered samples placed in bucket.Moderately weathered, Mn/Fe-coated aphyric pillow talus. Type 4 of this dredge.
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