| 湘黔渝毗邻区南华纪岩相古地理及沉积盆地演化 |
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| 关键词:Hunan–Guizhou–Chongqing border area Nanhua Period sedimentological characteristics sedimentary basin manganese deposit |
| 基金项目:国家重点研发计划“深地资源勘查开采”重点专项课题(编号: 2017YFC0601506) |
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| 摘要: |
| Lithofacies Palaeogeography and Sedimentary Evolution of Hunan–Guizhou–Chongqing Border Area in the Nanhua Period |
| Located on the southeastern margin of Yangtze block, the study area has preserved a complete depositional record of Nanhua Period. The “Datanpo type” manganese deposit in this area is an important manganese resource base. In this paper, based on an investigation of the formation system of Nanhua Period, the authors found that, under the background of Rodinia supercontinent breakup, the southeastern margin of Yangtze block experienced intensive regional extensional rifting and formed The Nanhua rift consisting of Wuling and Xuefeng secondary rift basins. Through the study of sedimentary structure and the rock slice identification for the Nanhua period sections, sedimentary facies belts were identified. They included continental, transgressive and shallow marine facies. The results obtained by the authors have deepened the understanding of the Nanhua period, and provide important information for geological prospecting in the study area. |
| ZOU Guang-jun,HUANG Jian-zhong,LING Yue-xin,TAN Shi-min,CAO Chuang-hua,HUANG Ge-fei,WEN Chun-hua.2020.Lithofacies Palaeogeography and Sedimentary Evolution of Hunan–Guizhou–Chongqing Border Area in the Nanhua Period[J].Acta Geoscientica Sinica,41(2):207-218. |
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