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Index to Marine and Lacustrine Geological Samples (IMLGS)

Repository: US Extended Continental Shelf Project
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Ship: Healy
Cruise: HLY1002 (H-3-10-AR)
Sample: HLY1002-1GB-1
Device: core, gravity
Latitude: 71.31767
Longitude: -143.99828
Water Depth(m): 2530
Date: 20100811
PI: Brian Edwards
IGSN: ECS003000
Core length (cm): 133
Diameter (cm): 8
Storage: refrigerated
Province: rise, continental

Gravity core (big) 2400 lb. weightstand, 1 section. Subsamples: core cutter, scrape of external pipe for microfauna. Site info: L977AR Ln725. Pull out: 610. Piercement structure/mound. Poorly sorted subangular silt with dominant background clay that resembles glacial flour. Some silt-sized brown angular fragments (may be organic). Rare, poorly preserved sponge spicules. Barren of diatoms.
1 :    IGSN ECS00008N   0 to 133 cm in core
Comments: Core section 1, identified as HLY1002-1GB-1-001
Description: preliminary description: Silty clay. Iron sulfides present throughout section, with greater amounts in upper 8 cm. Deeper (greater than 8 cm) occurs primarily as bands. Also in this section, limited bands of brown sands with associated fine-grained organic matter. Massive authigenic carbonates throughout the core. Authigenic carbonate nodules vary in size from 0.5 cm up to 4 cm. A full authigenic carbonate record at 2-3 cm vertical resolution is possible. Smaller disseminated carbonate also present, not visible, but identifiable as angular grains. Gas (methane) generated fractures throughout. Four complete valves. See Sample Data/Information link above for additional/updated data, information and images.
2 :    IGSN ECS00008O  
Comments: Core Catcher, identified as HLY1002-1GB-1-CA. Two bags, HLY1002-1GB-1-CA-1 (ECS00008Q) and HLY1002-1-GB-1-CA-2 (ECS00008R)
3 :    IGSN ECS00008P  
Comments: Core Cutter, identified as HLY1002-1GB-1-CC.
4 :    IGSN ECS00008S  
Comments: External scrape for microfauna, identified as HLY1002-1GB-1-MFx.

When you refer to individual samples/data in the IMLGS, please cite each source repository whose data you use.

More Information and how to cite the IMLGS: doi:10.7289/V5H41PB8.

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