Geochemistry, minerals and b-parameter at DSDP Leg 70 Holes
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| Auteurs principaux: | , , |
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
1983
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| _version_ | 1867170465732100096 |
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| author | Kurnosov, Victor B Chudaev, Oleg V Shevchenko, Alla Ya |
| author_facet | Kurnosov, Victor B Chudaev, Oleg V Shevchenko, Alla Ya |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Clay minerals recovered from the Galapagos hydrothermal mounds (Holes 506C, 507D, and 509B) are mainly iron-rich nontronite-like minerals enriched in potassium. Nontronites from Hole 509B show a distinct tendency to become micaceous toward the lower beds of clay sediments. Mn-crusts consist mainly of todorokite or a mixture of todorokite and nontronite. Minerals of clay and Mnrich sediments in the mounds originated from hydrothermal solutions of uncertain origin. Pelagic oozes from hydrothermal mounds and from areas between mounds (Hole 506D) consist mainly of calcite. In the carbonate beds on or near the hydrothermal mounds an admixture of smectite is often found. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_815436 |
| institution | PANGAEA |
| language | en |
| publishDate | 1983 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Geochemistry, minerals and b-parameter at DSDP Leg 70 Holes Kurnosov, Victor B Chudaev, Oleg V Shevchenko, Alla Ya 70-506C; 70-506D; 70-507D; 70-509B; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg70; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/MOUND Clay minerals recovered from the Galapagos hydrothermal mounds (Holes 506C, 507D, and 509B) are mainly iron-rich nontronite-like minerals enriched in potassium. Nontronites from Hole 509B show a distinct tendency to become micaceous toward the lower beds of clay sediments. Mn-crusts consist mainly of todorokite or a mixture of todorokite and nontronite. Minerals of clay and Mnrich sediments in the mounds originated from hydrothermal solutions of uncertain origin. Pelagic oozes from hydrothermal mounds and from areas between mounds (Hole 506D) consist mainly of calcite. In the carbonate beds on or near the hydrothermal mounds an admixture of smectite is often found. |
| title | Geochemistry, minerals and b-parameter at DSDP Leg 70 Holes |
| topic | 70-506C; 70-506D; 70-507D; 70-509B; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg70; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/MOUND |
| url | https://doi.org/10.1594/PANGAEA.815436 |