Occurrences and distribution of “invisible” precious metals in sulfide deposits from the Edmond hydrothermal field, Central Indian Ridge
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- 作者：Zhongwei Wua ; b ; Xiaoming Suna ; b ; c ; d ; eessxm@mail.sysu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Huifang Xue ; hfxu@geology.wisc.edu" class="auth_mail" title="E-mail the corresponding author ; Hiromi Konishie ; Yan Wanga ; f ; Chi Wanga ; Yingzhi Daic ; Xiguang Dengg ; Miao Yug
- 关键词：Submicroscopic gold/silver ; Nanoparticles ; Sulfosalt ; Massive sulfide deposits ; Edmond hydrothermal field ; Central Indian Ridge
- 刊名：Ore Geology Reviews
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：79
- 期：Complete
- 页码：105-132
- 全文大小：6390 K
文摘
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Firstly documented occurrences of “invisible” gold and silver in an active hydrothermal system on the Central Indian Ridge.
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Direct imaging of Ag nanoparticles exsolved from sulfosalt minerals in the Indian Ocean hydrothermal sulfide deposits.
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Oxidation of massive sulfides by seawater together with post-depositional supergene processes may result in significant enrichment of secondary gold.