Metasomatized Lithospheric Mantle for Mesozoic Giant
https://doi.org/10.1130/G46662.1 Manuscript received 19 June 2019 Revised manuscript received 18 October 2019 Manuscript accepted 21 October 2019 © 2019 The Authors. Gold Open Access: This paper is published under the terms of the CC-BY license. Published online 22 November 2019 Metasomatized lithospheric mantle for Mesozoic giant gold deposits in the North China craton Zaicong Wang1*, Huai Cheng1, Keqing Zong1, Xianlei Geng1, Yongsheng Liu1, Jinhui Yang2, Fuyuan Wu2, Harry Becker3, Stephen Foley4 and Christina Yan Wang5 1 State Key Laboratory of Geological Processes and Mineral Resources (GPMR), School of Earth Sciences, China University of Geosciences, Wuhan 430074, China 2 Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China 3 Institut für Geologische Wissenschaften, Freie Universität Berlin, Berlin 12249, Germany 4 Department of Earth and Environmental Sciences, Macquarie University, North Ryde, NSW 2109, Australia 5 Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China ABSTRACT to designate as crustal metamorphism-related The origin of giant lode gold deposits of Mesozoic age in the North China craton (NCC) is orogenic Au deposits because they formed prior enigmatic because high-grade metamorphic ancient crust would be highly depleted in gold. to 1.8 Ga after high-grade metamorphism of the Instead, lithospheric mantle beneath the crust is the likely source of the gold, which may have crust, which would have been strongly deplet- been anomalously enriched by metasomatic processes. However, the role of gold enrichment ed in gold and fluids (Goldfarb and Santosh, and metasomatism in the lithospheric mantle remains unclear. Here, we present comprehensive 2014; Goldfarb and Groves, 2015).
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