Marlow, J R; Farrimond, Paul; Rosell-Melé, Antoni (2001): (Table 1) Sample identification and bulk properties, Hole 175-1084A [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.198765, Supplement to: Marlow, JR et al. (2001): Analysis of lipid biomarkers in sediments from the Benguela Current coastal upwelling system (Site 1084). In: Wefer, G., Berger, W.H., and Richter, C. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, 175, 1-26, https://doi.org/10.2973/odp.proc.sr.175.210.2001
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Abstract:
The major biomarker compounds in surface (0.95 meters below seafloor [mbsf]) and deep (579.92 mbsf) sediment samples from the Benguela Current coastal upwelling system off Lüderitz, Namibia (Leg 175 Hole 1084A), have been identified and quantified. Lipids of marine origin (especially long-chain alkenones) dominate the solvent-soluble extracts of both samples with minor constituents of terrestrially derived lipids. The paleoenvironmental significance of the more labile biomarker distributions (sterols) is limited by losses from depth-related diagenetic transformations. These losses may have led to the relative enrichment of the more refractory biomarkers (alkenones) with depth.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -25.513880 * Longitude: 13.027770
Date/Time Start: 1997-09-21T03:10:00 * Date/Time End: 1997-09-24T03:15:00
Minimum DEPTH, sediment/rock: 0.95 m * Maximum DEPTH, sediment/rock: 579.92 m
Event(s):
175-1084A * Latitude: -25.513880 * Longitude: 13.027770 * Date/Time Start: 1997-09-21T03:10:00 * Date/Time End: 1997-09-24T03:15:00 * Elevation: -1991.9 m * Penetration: 605 m * Recovery: 511.56 m * Location: Benguela Current, South Atlantic Ocean * Campaign: Leg175 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 65 cores; 605 m cored; 0 m drilled; 84.6 % recovery
Comment:
Ages and sedimentation rates are calculated from the biostratigraphic age model of Wefer, Berger, Richter, et al. (1998, doi:10.2973/odp.proc.ir.175.1998)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | AGE | Age | ka BP | Geocode | ||
| 3 | Sample code/label | Sample label | Marlow, J R | DSDP/ODP/IODP sample designation | ||
| 4 | Lithologic unit/sequence | Unit | Marlow, J R | lithologic subunit | ||
| 5 | Sedimentation rate | SR | cm/ka | Marlow, J R | Calculated, see reference(s) | |
| 6 | Calcium carbonate | CaCO3 | % | Marlow, J R | Element analyser CHN, LECO | |
| 7 | Carbon, organic, total | TOC | % | Marlow, J R | Element analyser CHN, LECO | |
| 8 | Accumulation rate, calcium carbonate | Acc rate CaCO3 | g/cm2/ka | Marlow, J R | Calculated, see reference(s) | MAR Corg |
| 9 | Accumulation rate, total organic carbon | Acc rate TOC | g/cm2/ka | Marlow, J R | Calculated, see reference(s) | MAR CaCO3 |
| 10 | Sulfur, total | TS | % | Marlow, J R | Element analyser CHN, LECO | TS |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
16 data points