Plate subduction, oxygen fugacity, and mineralization

作     者：LIU He LIAO Renqiang ZHANG Lipeng LI Congying SUN Weidong LIU He;LIAO Renqiang;ZHANG Lipeng;LI Congying;SUN Weidong

作者机构：Key Laboratory of Marine Geology and EnvironmentCenter of Deep-Sea ResearchInstitute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Mineral ResourcesLaboratory for Marine Biology and BiotechnologyPilot National Laboratory for Marine Science and TechnologyQingdao 266071China Center for Ocean Mega-ScienceChinese Academy of SciencesQingdao 266071China University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Journal of Oceanology and Limnology》 (海洋湖沼学报（英文）)

年 卷 期：2020年第38卷第1期

页      面：64-74页

核心收录：

学科分类：0710[理学-生物学] 081803[工学-地质工程] 0908[农学-水产] 0707[理学-海洋科学] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 

基　　金：Supported by the National Key R&D Program of China(No.2016YFC0600408) 

主　　题：plate subduction oxygen fugacity ore deposits geochemical behaviors subduction factory 

摘      要：Plate subduction is the largest natural factory that processes elements,which controls recycling and mineralization of a variety of *** are three major ore deposit belts in the world:the circumPacific,the centralAsian,and the Tethys *** the three belts are closely associated with plate subductions,the mechanism remains *** approached this problem from systematic studies on the behaviours of elements during geologic *** contribution summaries the recent progress of our research *** results suggest that porphyry Cu deposits form through partial melting of subducted young oceanic crust under oxygen fugacities higher than AFMQ^+1.5,which is promoted after the elevation of atmospheric oxygen at ca.550 *** deposits are associated with reducing magmatic rocks formed as a consequence of slab *** Neo-Tethys tectonic regime hosts more than 60%of the world s total Sn *** is due to the reducing environment formed during the subduction of organic rich *** the same reason,porphyry Cu deposits formed in the late stages during the closure of the Neo-Tethys *** deposits are also controlled by slab rollback,but is not so sensitive to oxygen *** related W/Sn deposits are mostly accompanied by abundant accessory fluorites due to the breakdown of phengite and *** of phengite is also significant for hard rock lithium deposits,whereas orogenic belt resulted from plate subduction promote the formation of Li brine *** red bed basins near the Nanling region are favorable for Li *** Mo and Re are enriched in the oxidationreduction cycle during surface processes,and may get further enriched once Mo-,Re-enriched sediments are subducted and involved in *** plate subduction,Mo and Re fractionate from each *** is mainly hosted in porphyry Mo deposits and to a less extent,porphyry Cu-Mo deposits,whereas Re is predominantly hosted in