| Red Clay Type Gold Deposits in China |
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| 作者姓名： | SUN Xiang DENG Jun WANG Qingfei GONG Qingjie YANG Liqiang and WANG Changming |
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| 作者单位： | State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China |
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| 基金项目： | This paper was supported by the National Basic Research Program of China (973 Program) (No. 2009CB421008), 111 Project (No. B07011), and Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT). |
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| 摘 要： | <正>Red clay type gold deposits,located in the south of China,are situated not only in orogenic belts,but also in inner cratons,where climate is tropical-subtropical with clear arid and humid.The lateritic weathering crust often can be divided into five zones,including topsoil,siliceous duricrust zone,multi-color zone(or red clay zone in some deposits),pallid zone and saprolite zone from surface to the base rock,several of which are absent in some deposits.The base rocks are composed mainly of carbonate rocks with minor clastic rocks,intermediate-basic volcanic rocks and intermediate-acid and alkalic intrusions.The orebodies are mainly located in the multi-color zone with part of them in the pallid and saprolite zones.The ore sources include orebodies of Carlin-type gold deposits and porphyry gold deposits,as well as gold-rich base rocks.The red clay type gold deposits experienced early-stage endogenic gold mineralization and laterization during the Tertiary and Quaternary.The areas with endogenic gold deposits,especially Carlin-type gold deposits and porphyry gold deposits in karst depressions on the plateau,structual erosional platforms in the middle-lower mountains,and intermountain basins in southern China are well worth studying to trace red clay type gold deposits.
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| 关 键 词： | red clay type gold deposit lateritic weathering crust Carlin-type gold deposit endogenic gold mineralization China |
| 收稿时间： | 4/1/2010 12:00:00 AM |
| 修稿时间： | 9/1/2010 12:00:00 AM |
Red Clay Type Gold Deposits in China |
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| Authors: | SUN Xiang DENG Jun WANG Qingfei GONG Qingjie YANG Liqiang WANG Changming |
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| Institution: | State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China |
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| Abstract: | Red clay type gold deposits, located in the south of China, are situated not only in orogenic belts, but also in inner cratons, where climate is tropical‐subtropical with clear arid and humid. The lateritic weathering crust often can be divided into five zones, including topsoil, siliceous duricrust zone, multi‐color zone (or red clay zone in some deposits), pallid zone and saprolite zone from surface to the base rock, several of which are absent in some deposits. The base rocks are composed mainly of carbonate rocks with minor clastic rocks, intermediate‐basic volcanic rocks and intermediate‐acid and alkalic intrusions. The orebodies are mainly located in the multi‐color zone with part of them in the pallid and saprolite zones. The ore sources include orebodies of Carlin‐type gold deposits and porphyry gold deposits, as well as gold‐rich base rocks. The red clay type gold deposits experienced early‐stage endogenic gold mineralization and laterization during the Tertiary and Quaternary. The areas with endogenic gold deposits, especially Carlin‐type gold deposits and porphyry gold deposits in karst depressions on the plateau, structual erosional platforms in the middle‐lower mountains, and intermountain basins in southern China are well worth studying to trace red clay type gold deposits. |
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| Keywords: | red clay type gold deposit lateritic weathering crust Carlin‐type gold deposit endogenic gold mineralization China |
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