Geochemistry and petrology of basalts from Celebes Sea
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
1991
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| _version_ | 1867171361672134656 |
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| author | Smith, Terence E Huang, C H Sajona, F G |
| author_facet | Smith, Terence E Huang, C H Sajona, F G |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Major-, trace-, and rare-earth element analyses are presented from a suite of basaltic rocks from the basement of the Celebes Sea. The major elements and trace-elements were determined by X-ray fluorescence techniques, and the rare-earth elements were analyzed by instrumental neutron activation analysis. Compositionally the Celebes Sea basalts are very similar to typical normal mid-ocean ridge basalts, such as those described from the Indian Ocean triple junction. Petrogenetic modeling shows that all of the basalts analyzed can be formed by 10% to 20% partial melting of a light rare-earth element-depleted spinel lherzolite followed by fractional crystallization of mixtures of olivine, Plagioclase, and iron oxide. The Celebes Sea is interpreted as a fragment of the basement of the Jurassic Argo abyssal plain trapped during the Eocene to the north of Australia. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_762109 |
| institution | PANGAEA |
| language | en |
| publishDate | 1991 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Geochemistry and petrology of basalts from Celebes Sea Smith, Terence E Huang, C H Sajona, F G 124-767C; 124-770; 124-770B; 124-770C; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg124; Mindanao Sea; Ocean Drilling Program; ODP Major-, trace-, and rare-earth element analyses are presented from a suite of basaltic rocks from the basement of the Celebes Sea. The major elements and trace-elements were determined by X-ray fluorescence techniques, and the rare-earth elements were analyzed by instrumental neutron activation analysis. Compositionally the Celebes Sea basalts are very similar to typical normal mid-ocean ridge basalts, such as those described from the Indian Ocean triple junction. Petrogenetic modeling shows that all of the basalts analyzed can be formed by 10% to 20% partial melting of a light rare-earth element-depleted spinel lherzolite followed by fractional crystallization of mixtures of olivine, Plagioclase, and iron oxide. The Celebes Sea is interpreted as a fragment of the basement of the Jurassic Argo abyssal plain trapped during the Eocene to the north of Australia. |
| title | Geochemistry and petrology of basalts from Celebes Sea |
| topic | 124-767C; 124-770; 124-770B; 124-770C; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg124; Mindanao Sea; Ocean Drilling Program; ODP |
| url | https://doi.org/10.1594/PANGAEA.762109 |