| _version_ | 1867171754987749376 |
|---|---|
| author | Weis, Dominique A M Ingle, Stephanie Damasceno, Dimitri Frey, Frederick A Nicolaysen, Kirsten P Barling, Jane Shipboard Scientific Party |
| author_facet | Weis, Dominique A M Ingle, Stephanie Damasceno, Dimitri Frey, Frederick A Nicolaysen, Kirsten P Barling, Jane Shipboard Scientific Party |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Basalts forming the floor of the Indian Ocean are geochemically distinct from those of the Atlantic and Pacific Oceans. These differences have been attributed to a deeply recycled continental component or to widespread dispersion of plume-type mantle within the Indian Ocean asthenosphere. The discovery of Proterozoic continental crustal rocks within the uppermost basaltic basement of Elan Bank, part of the Kerguelen Plateau, shows instead that direct shallow-level contamination of basaltic magmas by isolated continental crust fragments may have produced the anomalous isotopic ratios of some Indian Ocean basalts. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_712087 |
| institution | PANGAEA |
| language | en |
| publishDate | 2001 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Sr-Nd-Pb isotopic compositions of samples from ODP Hole 183-1137 Weis, Dominique A M Ingle, Stephanie Damasceno, Dimitri Frey, Frederick A Nicolaysen, Kirsten P Barling, Jane Shipboard Scientific Party 183-1137; Calculated; COMPCORE; Composite Core; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Indian Ocean; Joides Resolution; Lead-206/Lead-204 ratio; Lead-207/Lead-204 ratio; Lead-208/Lead-204 ratio; Leg183; Lithologic unit/sequence; Mass spectrometer multicollector VG 54; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, error; Ocean Drilling Program; ODP; Rubidium; Rubidium-87/Strontium-86 ratio; Sample code/label; Strontium; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, error Basalts forming the floor of the Indian Ocean are geochemically distinct from those of the Atlantic and Pacific Oceans. These differences have been attributed to a deeply recycled continental component or to widespread dispersion of plume-type mantle within the Indian Ocean asthenosphere. The discovery of Proterozoic continental crustal rocks within the uppermost basaltic basement of Elan Bank, part of the Kerguelen Plateau, shows instead that direct shallow-level contamination of basaltic magmas by isolated continental crust fragments may have produced the anomalous isotopic ratios of some Indian Ocean basalts. |
| title | (Table 1) Sr-Nd-Pb isotopic compositions of samples from ODP Hole 183-1137 |
| topic | 183-1137; Calculated; COMPCORE; Composite Core; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Indian Ocean; Joides Resolution; Lead-206/Lead-204 ratio; Lead-207/Lead-204 ratio; Lead-208/Lead-204 ratio; Leg183; Lithologic unit/sequence; Mass spectrometer multicollector VG 54; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, error; Ocean Drilling Program; ODP; Rubidium; Rubidium-87/Strontium-86 ratio; Sample code/label; Strontium; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, error |
| url | https://doi.org/10.1594/PANGAEA.712087 |