Carbon and Sulphur concentrations of sediments from Peru, Oman and Benguela upwelling environments
Fuente:
PANGAEA
Salvato in:
| Autori principali: | , |
|---|---|
| Natura: | Dataset Open Access |
| Lingua: | en |
| Pubblicazione: |
PANGAEA
1993
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1867170453364146176 |
|---|---|
| author | Emeis, Kay-Christian Morse, John W |
| author_facet | Emeis, Kay-Christian Morse, John W |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_667166 |
| institution | PANGAEA |
| language | en |
| publishDate | 1993 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Carbon and Sulphur concentrations of sediments from Peru, Oman and Benguela upwelling environments Emeis, Kay-Christian Morse, John W 112-679; 112-680; 112-681; 112-682; 112-683; 112-684; 112-685; 112-686; 112-687; 112-688; 117-721; 117-722; 117-723; 117-724; 117-725; 117-727; 117-728; 117-730; 117-731; 75-532A; 75-532B; Arabian Sea; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Joides Resolution; Leg112; Leg117; Leg75; Ocean Drilling Program; ODP; South Atlantic Ocean; South Pacific Ocean 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. |
| title | Carbon and Sulphur concentrations of sediments from Peru, Oman and Benguela upwelling environments |
| topic | 112-679; 112-680; 112-681; 112-682; 112-683; 112-684; 112-685; 112-686; 112-687; 112-688; 117-721; 117-722; 117-723; 117-724; 117-725; 117-727; 117-728; 117-730; 117-731; 75-532A; 75-532B; Arabian Sea; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Joides Resolution; Leg112; Leg117; Leg75; Ocean Drilling Program; ODP; South Atlantic Ocean; South Pacific Ocean |
| url | https://doi.org/10.1594/PANGAEA.667166 |