Distribution of porphyry deposits in the Eurasian continent and their corresponding tectonic settings |
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| Affiliation: | 1. Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry, Russian Academy of Sciences (IGEM RAS), Staromonetny per. 35, Moscow 119017, Russia;2. The Zavaritsky Institute of Geology and Geochemistry of the Ural Branch, Russian Academy of Sciences, Akademika Vonsovskogo str. 15, Yekaterinburg 620016, Russia;3. John de Laeter Centre for Isotopic Research & The Institute for Geoscience Research (TIGeR), Curtin University, Kent St, Bentley, WA 6102, Australia;4. Centre for Russian and Central Eurasian Mineral Studies (CERCAMS), Department of Earth Sciences, Natural History Museum, London SW7 5BD, UK;1. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China;2. School of Earth Science and Resources, China University of Geosciences, Beijing 100083, China;3. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China;4. Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China;5. Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China;6. Petrochina Research Institute of Petroleum Exploration & Development, Beijing 100083, China;1. State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China;2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;1. CAS Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, Wushan, Guangzhou 510640, China;2. State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, Wushan, Guangzhou 510640, China;3. University of the Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | In the Eurasian continent there are three huge metallogenic belts of Cu and Mo porphyry deposits, comprising the Paleozoic Central Asian Ore Belt in the north, the Tethyan Eurasian Ore Belt of Jurassic to Cenozoic age in the southwest, and the East Margin Ore Belt of the Eurasian Continent of Jurassic to Cretaceous age in the east. The latter is considered to be part of the vast Circum-Pacific ore belt. Some of the main features of the spatial–temporal distribution of Cu and Mo porphyry systems and related geodynamic processes of the three metallogenic belts are described. In particular, the key role of post-subduction – related porphyry ore systems is emphasized, comprising collisional and post-collisional Cu–Mo porphyry deposits during the geological history of the Eurasian continent. The recurrent feature of these ore systems and related felsic rocks is their derivation from partial melting of stagnant or residual oceanic slabs, and mixing with a variable amount of crustal material during magma ascent to shallower levels. |
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| Keywords: | Porphyry Cu (Mo–Au) deposits Porphyry Mo deposits Eurasian continent Spatial–temporal distribution Geodynamic settings |
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