Emeis, Kay-Christian; Morse, John W (1993): Carbon and Sulphur concentrations of sediments from Peru, Oman and Benguela upwelling environments [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.667166, Supplement to: Emeis, K-C; Morse, JW (1993): Zur Systematik der Kohlenstoff-Schwefel-Eisen-Verhältnisse in Auftriebssedimenten. Geologische Rundschau, 82(4), 604-618, https://doi.org/10.1007/BF00191488
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Abstract:
Abundances of organic carbon, sulfur, and reactive iron in sediments of three upwelling environments (Peru, Oman and Benguela) suggest that organic carbon/reduced sulfur ratios (C/S-ratios) in this category of marine sediments deviate considerably from previously established empirical ratios in normal marine sediments. To clarify the discrepancies, we investigated those components of the diagenetic system that limit the formation of pyrite: sulfate concentrations and reduction rates in pore waters, availability of reactive iron, and the quantity and quality of organic matter. All three limitations are evident in our sample pools. The results suggest that C/S-ratios in recent and fossil marine sediments rich in organic matter may be unsuitable as paleoenvironmental indicators.
Project(s):
Deep Sea Drilling Project (DSDP)
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -1.020596 * Median Longitude: -3.684768 * South-bound Latitude: -19.744300 * West-bound Longitude: -80.583500 * North-bound Latitude: 18.487300 * East-bound Longitude: 59.864500
Date/Time Start: 1980-08-20T00:00:00 * Date/Time End: 1987-10-09T00:00:00
Event(s):
75-532A * Latitude: -19.744000 * Longitude: 10.518800 * Date/Time: 1980-08-20T00:00:00 * Elevation: -1331.0 m * Penetration: 199.6 m * Recovery: 161 m * Location: South Atlantic * Campaign: Leg75 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 42 cores; 182.6 m cored; 17 m drilled; 88.2 % recovery
75-532B * Latitude: -19.744300 * Longitude: 10.518800 * Date/Time: 1980-08-20T00:00:00 * Elevation: -1331.0 m * Penetration: 291.3 m * Recovery: 264.9 m * Location: South Atlantic * Campaign: Leg75 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 72 cores; 284.3 m cored; 7 m drilled; 93.2 % recovery
112-679 * Latitude: -11.062467 * Longitude: -78.270867 * Date/Time Start: 1986-10-31T00:00:00 * Date/Time End: 1986-11-05T00:00:00 * Elevation: -454.8 m * Penetration: 794.4 m * Recovery: 332.1 m * Location: South Pacific Ocean * Campaign: Leg112 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 62 cores; 548.9 m cored; 0 m drilled; 60.5% recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
6 datasets
Download Data
Datasets listed in this publication series
- Emeis, K-C; Morse, JW (1993): (Table 1) Carbon and sulphur concentrations of sediments from DSDP Hole 75-532B, Walvis Ridge, South Altlantic. https://doi.org/10.1594/PANGAEA.667149
- Emeis, K-C; Morse, JW (1993): (Table 3) Carbon and sulphur concentrations of sediments from ODP Site 112-680, Peru continental margin, Pacific Ocean. https://doi.org/10.1594/PANGAEA.667159
- Emeis, K-C; Morse, JW (1993): (Table 3b) Carbon and sulphur concentrations of sediments from ODP Site 112-688, Peru continental margin, Pacific Ocean. https://doi.org/10.1594/PANGAEA.667160
- Emeis, K-C; Morse, JW (1993): (Table 2) Carbon and sulphur concentrations of sediments from ODP Site 117-722, Oman continental margin, Indian Ocean. https://doi.org/10.1594/PANGAEA.667153
- Emeis, K-C; Morse, JW (1993): (Table 2b) Carbon and sulphur concentrations of sediments from ODP Site 117-723, Oman continental margin, Indian Ocean. https://doi.org/10.1594/PANGAEA.667156
- Emeis, K-C; Morse, JW (1993): (Table 4) Sulphate reduction rates of sediments from Peru, Oman and Benguela upwelling environments. https://doi.org/10.1594/PANGAEA.667161