Geochemistry at DSDP Leg 73 Holes
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
1984
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| _version_ | 1867167670033448960 |
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| author | Karpoff, Anne Marie |
| author_facet | Karpoff, Anne Marie |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | In the South Atlantic, at Sites 519 to 523, the dissolution of calcareous oozes ended in the formation of red clays rich in iron and manganese. The early authigenesis of manganese oxides and clays is described in Miocene marly calcareous oozes. The mineralogical and geochemical influences of basaltic basement weathering are shown by the occurrence of palagonite, authigenic clays, and oxides in the basal sediments. The development of red clay facies can be inhibited by local topographic and paleoceanographic changes, as at Site 520. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_810944 |
| institution | PANGAEA |
| language | en |
| publishDate | 1984 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Geochemistry at DSDP Leg 73 Holes Karpoff, Anne Marie 73-519; 73-520; 73-521; 73-522; 73-522A; 73-522B; 73-523; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg73; South Atlantic/HILL; South Atlantic/PLATEAU; South Atlantic/RIDGE; South Atlantic/VALLEY In the South Atlantic, at Sites 519 to 523, the dissolution of calcareous oozes ended in the formation of red clays rich in iron and manganese. The early authigenesis of manganese oxides and clays is described in Miocene marly calcareous oozes. The mineralogical and geochemical influences of basaltic basement weathering are shown by the occurrence of palagonite, authigenic clays, and oxides in the basal sediments. The development of red clay facies can be inhibited by local topographic and paleoceanographic changes, as at Site 520. |
| title | Geochemistry at DSDP Leg 73 Holes |
| topic | 73-519; 73-520; 73-521; 73-522; 73-522A; 73-522B; 73-523; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg73; South Atlantic/HILL; South Atlantic/PLATEAU; South Atlantic/RIDGE; South Atlantic/VALLEY |
| url | https://doi.org/10.1594/PANGAEA.810944 |