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VOOZH | about |
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Two genetic models for the Middle-Late Devonian porphyry-skarn copper mineralization in the Junggar–Tianshan collage, northwest China: A case study of the Saibo deposit | ||
| Journal | Ore Geology Reviews | ||
| Authors | Qing-Sun | Author | |
| Shun-Li | Author | ||
| Ju-Tang | Author | ||
| Chen, Chuan | Author | ||
| Xiao-Du | Author | ||
| Ling-Gao | Author | ||
| Yi-Wang | Author | ||
| Zhi-Li | Author | ||
| Year | 2024 | Volume | < 171 > |
| Page(s) | 106189 | ||
| URL | |||
| DOI | doi:10.1016/j.oregeorev.2024.106189Search in ResearchGate | ||
| Generate Citation Formats | |||
| Classification | Not set | LoC | Not set |
| Mindat Ref. ID | 17527880 | Long-form Identifier | mindat:1:5:17527880:2 |
| GUID | 0 | ||
| Full Reference | Qing-Sun, Shun-Li, Ju-Tang, Chen, Chuan, Xiao-Du, Ling-Gao, Yi-Wang, Zhi-Li (2024) Two genetic models for the Middle-Late Devonian porphyry-skarn copper mineralization in the Junggar–Tianshan collage, northwest China: A case study of the Saibo deposit. Ore Geology Reviews, 171. 106189 doi:10.1016/j.oregeorev.2024.106189 | ||
| Plain Text | Qing-Sun, Shun-Li, Ju-Tang, Chen, Chuan, Xiao-Du, Ling-Gao, Yi-Wang, Zhi-Li (2024) Two genetic models for the Middle-Late Devonian porphyry-skarn copper mineralization in the Junggar–Tianshan collage, northwest China: A case study of the Saibo deposit. Ore Geology Reviews, 171. 106189 doi:10.1016/j.oregeorev.2024.106189 | ||
| In | Link this record to the correct parent record (if possible) | ||
| Abstract/Notes | The Junggar–Tianshan collage, located in the southern portion of the Kazakhstan Cu–Au–Mo metallogenic province, encompasses the Junggar block and Tianshan orogenic belt, extending from north to south. The region’s peak porphyry/skarn-type mineralization period is the Middle-Late Devonian. However, information on (1) the spatial distribution of porphyry/skarn-type mineralization, (2) geochemical (including isotopic) signatures and fertility of their causative intrusions, and (3) genetic models and tectonic settings is scarce. We introduce new data (zircon U–Pb dating, geochemistry, and Sr–Nd–Pb–Hf isotopes) from the Saibo deposit, along with compiled published data from Late Paleozoic porphyry/skarn-type deposits in the region. Our synthesis reveals that the Middle-Late Devonian porphyry/skarn-type deposits are predominantly located in the northern section of the western Tianshan orogenic belt and eastern Junggar terrane. In addition, all ore-causative granitoids exhibit normal-arc and undifferentiated I-type affinities. Diverse Th/Yb and Ba/La ratios indicate slab-derived hydrous melts metasomatized the mantle source for arc magmas in western Tianshan, while slab-derived aqueous fluids metasomatized the mantle source in East Junggar. Zircon trace element analysis suggests these magmas were high in oxygen fugacity, with those in the eastern Junggar terrane having higher water content compared to those in the northern part of the western Tianshan orogenic belt. Sr–Nd–Pb–Hf isotope data suggest an enriched lithospheric mantle source for the ore-causative granitoids in West Tianshan and a juvenile basaltic lower crust source in East Junggar. Based on the geological, geochronological, and geochemical evidence, we propose that the ore-causative granitoids in West Tianshan were formed through a slab-melting model associated with the rollback of the subducting north Tianshan oceanic slab. In contrast, those in East Junggar likely originated from MASH (i.e., melting, assimilation, storage, and homogenization) processes in a hot zone of the juvenile lower crust related to the subduction of the Kuerti-Erqis Ocean. | ||
| Locality | Citation Details |
|---|---|
| Saibo Cu deposit, Wenquan Co. (Arixang Co.; Arishang Co.), Bo'ertala Autonomous Prefecture (Börtala Autonomous Prefecture), Xinjiang, China |
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