Francois, Roger; Bacon, Michael P; Altabet, Mark A; Labeyrie, Laurent D (1993): (Table 4) Sediment composition, d15N, and Th-normalized paleoflux and ex. 231Pa 0/ex. 230Th 0 activity ratio in core MD84-527 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.52610, In supplement to: Francois, R et al. (1993): Glacial/interglacial changes in sediment rain rate in the SW Indian sector of subantarctic waters as recorded by 230Th, 231Pa, U and d15N. Paleoceanography, 8(5), 611-629, https://doi.org/10.1029/93PA00784
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Project(s):
Silicon Cycling in the World Ocean (SINOPS)
Funding:
Coverage:
Latitude: -43.821700 * Longitude: 51.318300
Date/Time Start: 1984-01-01T00:00:00 * Date/Time End: 1984-01-01T00:00:00
Minimum DEPTH, sediment/rock: 0.10 m * Maximum DEPTH, sediment/rock: 5.48 m
Event(s):
MD84-527 * Latitude: -43.821700 * Longitude: 51.318300 * Date/Time: 1984-01-01T00:00:00 * Elevation: -3262.0 m * Recovery: 14.9 m * Location: South Indian Ocean * Campaign: MD38 (APSARA2) * Basis: Marion Dufresne (1972) * Method/Device: Piston corer (PC)
Comment:
AGE (ka) is based on accelerator mass spectrometry 14C dates (Labracherie et al., 1989) dataset: doi:10.1594/PANGAEA.358352. Paleofluxes and ex. 231Pa 0/ex. 230Th 0 activity ratios computed with the assumption that authigenic U was added to these sediment sections at 14 ka B.P.
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 | Calcium carbonate | CaCO3 | % | Francois, Roger | Element analysis, Vacuum-gasometric (Jones & Kaiteris, 1983) | |
| 4 | Opal, biogenic silica | bSiO2 | % | Francois, Roger | Opal, extraction; Mortlock & Froelich, 1989 | |
| 5 | Terrigenous | Terr | % | Francois, Roger | ||
| 6 | Nitrogen, total | TN | % | Francois, Roger | Element analyser CHN | |
| 7 | δ15N, organic matter | δ15N OM | ‰ air | Francois, Roger | Mass spectrometer Finnigan MAT 251 | |
| 8 | Accumulation rate, mass | MAR | g/cm2/ka | Francois, Roger | Calculated | minimum |
| 9 | Accumulation rate, mass | MAR | g/cm2/ka | Francois, Roger | Calculated | maximum |
| 10 | Protactinium-231/Thorium-230 excess | 231Pa/230Th xs | Francois, Roger | Calculated | minimum | |
| 11 | Protactinium-231/Thorium-230 excess | 231Pa/230Th xs | Francois, Roger | Calculated | maximum |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
297 data points