Polve, Mireille, Maury, Rene C., Vidal, Philippe, Priadi, Bambang, Bellon, Herve, Soeria-Atmadja, Rubini, Joron, Jean-Louis, Cotten, Joseph (2001) Melting of lower continental crust in a young post-collision setting; a geochemical study of Plio-Quaternary acidic magmatism from central Sulawesi (Indonesia) Bulletin de la Société géologique de France, 172 (3) 333-342 doi:10.2113/172.3.333
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Melting of lower continental crust in a young post-collision setting; a geochemical study of Plio-Quaternary acidic magmatism from central Sulawesi (Indonesia) | ||
| Journal | Bulletin de la Société géologique de France | ||
| Authors | Polve, Mireille | Author | |
| Maury, Rene C. | Author | ||
| Vidal, Philippe | Author | ||
| Priadi, Bambang | Author | ||
| Bellon, Herve | Author | ||
| Soeria-Atmadja, Rubini | Author | ||
| Joron, Jean-Louis | Author | ||
| Cotten, Joseph | Author | ||
| Year | 2001 (May 1) | Volume | 172 |
| Issue | 3 | ||
| Publisher | EDP Sciences | ||
| DOI | doi:10.2113/172.3.333Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 530071 | Long-form Identifier | mindat:1:5:530071:0 |
| GUID | 0 | ||
| Full Reference | Polve, Mireille, Maury, Rene C., Vidal, Philippe, Priadi, Bambang, Bellon, Herve, Soeria-Atmadja, Rubini, Joron, Jean-Louis, Cotten, Joseph (2001) Melting of lower continental crust in a young post-collision setting; a geochemical study of Plio-Quaternary acidic magmatism from central Sulawesi (Indonesia) Bulletin de la Société géologique de France, 172 (3) 333-342 doi:10.2113/172.3.333 | ||
| Plain Text | Polve, Mireille, Maury, Rene C., Vidal, Philippe, Priadi, Bambang, Bellon, Herve, Soeria-Atmadja, Rubini, Joron, Jean-Louis, Cotten, Joseph (2001) Melting of lower continental crust in a young post-collision setting; a geochemical study of Plio-Quaternary acidic magmatism from central Sulawesi (Indonesia) Bulletin de la Société géologique de France, 172 (3) 333-342 doi:10.2113/172.3.333 | ||
| In | (2001, May) Bulletin de la Société géologique de France Vol. 172 (3) EDP Sciences | ||
| Abstract/Notes | Abstract Acidic potassic calc-alkaline (CAK) magmas have been emplaced in the central part of the western arm of Sulawesi from 6.5 to 0.6 Ma, mostly as peraluminous dacites, rhyolites and granites. They overlay or crosscut a high-grade metamorphic basement including lower crustal garnet peridotites and granulites, the latter showing evidences for incipient melting during rapid uplift. Major and trace element data coupled with a Sr, Nd and Pb isotopic study of the CAK magmas and their lower crustal basement rocks demonstrate that they share a number of common features, including radiogenic Sr and Pb and unradiogenic Nd signatures, consistent with those of Australian granulites and Indian Ocean sediments. We propose that the CAK magmas derived from the anatexis of lower crustal rocks of Australian origin (the Banggai-Sula microcontinent) during the phase of uplift which followed their collision with the Sundaland margin (the western arm of Sulawesi) during the Middle Miocene, and possibly the breakoff of the subducted Molucca Sea slab. | ||
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