Geochemistry at DSDP Leg 74 Holes
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PANGAEA
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| Autores principales: | , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
1984
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| Acceso en línea: | |
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| _version_ | 1867169508823662592 |
|---|---|
| author | Maillot, Henri Robert, Christian |
| author_facet | Maillot, Henri Robert, Christian |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Clay mineralogical and inorganic geochemical data from the Campanian to the Pleistocene provide information bearing on the evolution of both continental and marine paleoenvironments in the Walvis Ridge area. (1) Alteration processes of basalts occurred under subaerial conditions during the Campanian and Maestrichtian and were virtually absent in deeper marine environments. (2) Strong tectonic effects were present during the Campanian and persisted until the early Eocene. (3) Subsidence of this part of the Walvis Ridge became important during the late Maestrichtian and continued into the Paleocene and Eocene. (4) The influence of global climatic cooling was evident from the late Eocene on. (5) Modification of oceanic circulation and the increasing influence of surface and deep water masses on the sedimentation characterized the Cenozoic. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_810508 |
| institution | PANGAEA |
| language | en |
| publishDate | 1984 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Geochemistry at DSDP Leg 74 Holes Maillot, Henri Robert, Christian 74-525A; 74-525B; 74-527; 74-528; 74-528A; 74-529; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg74; South Atlantic/CREST; South Atlantic/RIDGE; South Atlantic/SLOPE; South Atlantic Ocean Clay mineralogical and inorganic geochemical data from the Campanian to the Pleistocene provide information bearing on the evolution of both continental and marine paleoenvironments in the Walvis Ridge area. (1) Alteration processes of basalts occurred under subaerial conditions during the Campanian and Maestrichtian and were virtually absent in deeper marine environments. (2) Strong tectonic effects were present during the Campanian and persisted until the early Eocene. (3) Subsidence of this part of the Walvis Ridge became important during the late Maestrichtian and continued into the Paleocene and Eocene. (4) The influence of global climatic cooling was evident from the late Eocene on. (5) Modification of oceanic circulation and the increasing influence of surface and deep water masses on the sedimentation characterized the Cenozoic. |
| title | Geochemistry at DSDP Leg 74 Holes |
| topic | 74-525A; 74-525B; 74-527; 74-528; 74-528A; 74-529; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg74; South Atlantic/CREST; South Atlantic/RIDGE; South Atlantic/SLOPE; South Atlantic Ocean |
| url | https://doi.org/10.1594/PANGAEA.810508 |