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| Main Authors: | , , |
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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
1990
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.747733 |
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| _version_ | 1867169502167302144 |
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| author | Wang, Yong-Chen Gieskes, Joris M Musoke, Lois |
| author_facet | Wang, Yong-Chen Gieskes, Joris M Musoke, Lois |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Chemical analyses for calcium carbonate, organic carbon, and major constituents (Al, Ti, Ca, Mg, K, Fe) of bulk sediments collected in Hole 671B have been carried out. Organic carbon contents in Pleistocene through middle Miocene sediments above the zone of decollement are very low (<0.1%); below the decollement considerably higher concentrations of organic carbon occur (up to 1 %). Changes in Ti/Al and Fe/Al ratios are minor, but K/Al and Mg/Al ratios show clear trends with the age of the sediments. Preliminary comparisons of these ratios with mineralogic information on clays indicate good correspondence with clay abundances. Calculations of the mass flux of magnesium from the overlying ocean into the pore fluids suggest that addition of magnesium to the sediments is difficult to detect, especially in the absence of a background reference concentration. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_747733 |
| institution | PANGAEA |
| language | en |
| publishDate | 1990 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Bulk chemical analysis of sediments ODP Hole 110-671B and 110-672A Wang, Yong-Chen Gieskes, Joris M Musoke, Lois 110-671B; 110-672A; DRILL; Drilling/drill rig; Joides Resolution; Leg110; North Atlantic Ocean; Ocean Drilling Program; ODP Chemical analyses for calcium carbonate, organic carbon, and major constituents (Al, Ti, Ca, Mg, K, Fe) of bulk sediments collected in Hole 671B have been carried out. Organic carbon contents in Pleistocene through middle Miocene sediments above the zone of decollement are very low (<0.1%); below the decollement considerably higher concentrations of organic carbon occur (up to 1 %). Changes in Ti/Al and Fe/Al ratios are minor, but K/Al and Mg/Al ratios show clear trends with the age of the sediments. Preliminary comparisons of these ratios with mineralogic information on clays indicate good correspondence with clay abundances. Calculations of the mass flux of magnesium from the overlying ocean into the pore fluids suggest that addition of magnesium to the sediments is difficult to detect, especially in the absence of a background reference concentration. |
| title | Bulk chemical analysis of sediments ODP Hole 110-671B and 110-672A |
| topic | 110-671B; 110-672A; DRILL; Drilling/drill rig; Joides Resolution; Leg110; North Atlantic Ocean; Ocean Drilling Program; ODP |
| url | https://doi.org/10.1594/PANGAEA.747733 |