caa a22 4500 445300531 CHVBK 20180317142556.0 cr unu---uuuuu 170323e20100401xx s 000 0 eng 10.1007/s11430-010-0024-0 doi (NATIONALLICENCE)springer-10.1007/s11430-010-0024-0 Ridge subduction and porphyry copper-gold mineralization: An overview [Elektronische Daten] [WeiDong Sun, MingXing Ling, XiaoYong Yang, WeiMing Fan, Xing Ding, HuaYing Liang] Many large porphyry Cu-Au deposits are connected to adakitic rocks known to be closely associated with ridge subduction. For example, there are several subducting ridges along the east Pacific margin, e.g., in Chile, Peru, and South America, most of which are associated with large porphyry Cu-Au deposits. In contrast, there are much fewer ridge subductions on the west Pacific margin and porphyry Cu-Au deposits are much less there, both in terms of tonnage and the number of deposits. Given that Cu and Au are moderately incompatible elements, oceanic crust has much higher Cu-Au concentrations than the mantle and the continental crust, and thus slab melts with their diagnostic adakitic chemistry have systematically higher Cu and Au, which is favorable for mineralization. Considering the geotherm of subducting slabs in the Phanerozoic, ridge subduction is the most favorable tectonic setting for this. Therefore, slab melting is the likely link in the spatial association between ridge subduction and Cu-Au deposits. Geochemical signatures of slab melting and hence maybe ridge subduction in less eroded regions in eastern China, the central Asian orogenic belt etc. may indicate important exploration targets for large porphyry Cu-Au deposits. Science in China Press and Springer-Verlag Berlin Heidelberg, 2010 ridge subduction nationallicence porphyry Cu-Au deposits nationallicence adakite nationallicence slab melting nationallicence Sun WeiDong CAS Key Laboratory of Isotope Geochronology and Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China aut Ling MingXing CAS Key Laboratory of Isotope Geochronology and Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China aut Yang XiaoYong Research Center for Mineral Resources, School of Earth and Space Sciences, University of Science and Technology of China, 230026, Hefei, China aut Fan WeiMing CAS Key Laboratory of Isotope Geochronology and Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China aut Ding Xing CAS Key Laboratory of Isotope Geochronology and Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China aut Liang HuaYing Key Laboratory for Metallogenic Dynamics, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China aut Science China Earth Sciences SP Science China Press 53/4(2010-04-01), 475-484 1674-7313 53:4<475 2010 53 11430 https://doi.org/10.1007/s11430-010-0024-0 text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11430-010-0024-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sun WeiDong CAS Key Laboratory of Isotope Geochronology and Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China aut NATIONALLICENCE 700 1- Ling MingXing CAS Key Laboratory of Isotope Geochronology and Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China aut NATIONALLICENCE 700 1- Yang XiaoYong Research Center for Mineral Resources, School of Earth and Space Sciences, University of Science and Technology of China, 230026, Hefei, China aut NATIONALLICENCE 700 1- Fan WeiMing CAS Key Laboratory of Isotope Geochronology and Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China aut NATIONALLICENCE 700 1- Ding Xing CAS Key Laboratory of Isotope Geochronology and Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China aut NATIONALLICENCE 700 1- Liang HuaYing Key Laboratory for Metallogenic Dynamics, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China aut NATIONALLICENCE 773 0- Science China Earth Sciences SP Science China Press 53/4(2010-04-01), 475-484 1674-7313 53:4<475 2010 53 11430 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer