Bulk geochemical and Rock-Eval data of sediment core IKU-7430/10-U-01 (Table 1)
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2003
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| _version_ | 1867169602974253056 |
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| author | Langrock, Uwe Stein, Ruediger Lipinski, Marcus Brumsack, Hans-Jürgen |
| author_facet | Langrock, Uwe Stein, Ruediger Lipinski, Marcus Brumsack, Hans-Jürgen |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The late Volgian (early "Boreal" Berriasian) sapropels of the Hekkingen Formation of the central Barents Sea show total organic carbon (TOC) contents from 3 to 36 wt%. The relationship between TOC content and sedimentation rate (SR), and the high Mo/Al ratios indicate deposition under oxygen-free bottom-water conditions, and suggest that preservation under anoxic conditions has largely contributed to the high accumulation of organic carbon. Hydrogen index values obtained from Rock-Eval pyrolysis are exceptionally high, and the organic matter is characterized by well-preserved type II kerogen. However, the occurrence of spores, freshwater algae, coal fragments, and charred land-plant remains strongly suggests proximity to land. Short-term oscillations, probably reflecting Milankovitch-type cyclicity, are superimposed on the long-term trend of constantly changing depositional conditions during most of the late Volgian. Progressively smaller amounts of terrestrial organic matter and larger amounts of marine organic matter upwards in the core section may have been caused by a continuous sea-level rise. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_143840 |
| institution | PANGAEA |
| language | en |
| publishDate | 2003 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Bulk geochemical and Rock-Eval data of sediment core IKU-7430/10-U-01 (Table 1) Langrock, Uwe Stein, Ruediger Lipinski, Marcus Brumsack, Hans-Jürgen AWI_Paleo; Calcium carbonate; Calculated; Carbon, organic, total; Carbon, total; Carbon/Nitrogen ratio; Carbon/sulfur ratio; Carbon dioxide yield, S3, per unit sediment mass; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Element analyser CHN, LECO; Element analyser CHN-O Rapid, Heraeus; Hydrocarbon yield, S1, per unit sediment mass; Hydrocarbon yield, S2, per unit sediment mass; Hydrogen index, mass HC, per unit mass total organic carbon; IKU-7430/10-U-01; Nitrogen, total; Oxygen index, mass CO2, per unit mass total organic carbon; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Pyrolysis temperature maximum; Rock eval pyrolysis (Behar et al., 2001); Sulfur, total The late Volgian (early "Boreal" Berriasian) sapropels of the Hekkingen Formation of the central Barents Sea show total organic carbon (TOC) contents from 3 to 36 wt%. The relationship between TOC content and sedimentation rate (SR), and the high Mo/Al ratios indicate deposition under oxygen-free bottom-water conditions, and suggest that preservation under anoxic conditions has largely contributed to the high accumulation of organic carbon. Hydrogen index values obtained from Rock-Eval pyrolysis are exceptionally high, and the organic matter is characterized by well-preserved type II kerogen. However, the occurrence of spores, freshwater algae, coal fragments, and charred land-plant remains strongly suggests proximity to land. Short-term oscillations, probably reflecting Milankovitch-type cyclicity, are superimposed on the long-term trend of constantly changing depositional conditions during most of the late Volgian. Progressively smaller amounts of terrestrial organic matter and larger amounts of marine organic matter upwards in the core section may have been caused by a continuous sea-level rise. |
| title | Bulk geochemical and Rock-Eval data of sediment core IKU-7430/10-U-01 (Table 1) |
| topic | AWI_Paleo; Calcium carbonate; Calculated; Carbon, organic, total; Carbon, total; Carbon/Nitrogen ratio; Carbon/sulfur ratio; Carbon dioxide yield, S3, per unit sediment mass; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Element analyser CHN, LECO; Element analyser CHN-O Rapid, Heraeus; Hydrocarbon yield, S1, per unit sediment mass; Hydrocarbon yield, S2, per unit sediment mass; Hydrogen index, mass HC, per unit mass total organic carbon; IKU-7430/10-U-01; Nitrogen, total; Oxygen index, mass CO2, per unit mass total organic carbon; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Pyrolysis temperature maximum; Rock eval pyrolysis (Behar et al., 2001); Sulfur, total |
| url | https://doi.org/10.1594/PANGAEA.143840 |