World Data Service for Geophysics

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

doi:10.7289/V5H41PB8


Repository: ECS [Contact the Curator]
Ship: Healy
Cruise: HLY0805 (HE0805)
Sample: HLY0805-DR4
Device: dredge, rock
Latitude: 81.31235
Longitude: -153.99283
Water Depth(m): 3467
Date: 20080901 to 20080901
PI: Larry Mayer
IGSN: ECS000004

Dredge Site #4 Steep 20 degree south facing slope above contact w/ abyssal plain Submarine fault block. Alpha Ridge. South central border with Nautilus Basin. Descriptions below are preliminary visual shipboard observations.
1 :    IGSN ECS00001A   [material from this subsample is not available]
Data/Photo: DR4-001 shipboard photos
Comments: Currently on loan for ECS-related research. Sample or specimen identified as HLY0805-DR4-001, 8x6x2cm rock.
Description: lt. yellowish possible volcanic ash, with iron crust/manganese crust, kaolinization
2 :    IGSN ECS00001B   [material from this subsample is not available]
Data/Photo: DR4-002 shipboard photos
Comments: Currently on loan for ECS-related research. Sample or specimen identified as HLY0805-DR4-002, 7x4.5x3.5cm rock.
Description: ferricrust--several layers of iron layering. Hemitite roses
3 :    IGSN ECS00001C   [material from this subsample is not available]
Data/Photo: DR4-003 shipboard photos
Comments: Currently on loan for ECS-related research. Sample or specimen identified as HLY0805-DR4-003, 17 pieces of various 2-6cm rock.
Description: Manganese crust
4 :    IGSN ECS00001D   [material from this subsample is not available]
Data/Photo: DR4-004 shipboard photos
Comments: Currently on loan for ECS-related research. Sample or specimen identified as HLY0805-DR4-004, 5x2x2.5cm rock.
Description: ferrous concretion roundish bulb on top
5 :    IGSN ECS00001E   [material from this subsample is not available]
Data/Photo: DR4-IRD shipboard photos
Comments: Currently on loan for ECS-related research. Sample or specimen identified as HLY0805-DR4-IRD, various 1-6cm rocks.
Description: IRD of various rock types and angularity
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