• 责任者：Zhang Hanjin (Hubei Institute of Geological Survey ; Wuhan 430034 ; China) ; Hu Zhengxiang
• 刊名：Journal of Stratigraphy
• 出版年：2013
• 卷期：37(4)
• 关键词：陡山沱组 ; Doushantuo Formation ; 岩相古地理 ; lithofacies paleogeography ; 磷矿床 ; phosphate deposit ; 湖北 ; Hubei Province
• 页码：p.521-526
• 图表：3 illus., 22 refs.
• 分类号：1200
• issnNo：ISSN0253-4959
• isbnNo：CN32-1187/P

     The Ediacaran Doushantuo Formation is widely distributed in western Hubei province, and it is an important deposit of sedimentary phosphorite. The distribution of phosphoric rock series is controlled by palaeogeographic factors. In order to understand the lithofacies and paleographic control on phosphorite distributionto guide the exploration of phosphorite resources, we carried out a systematic investigation of the Doushantuo Formation in western Hubei Province. Our investigation shows that the Doushantuo Formation in western Hubei Province was deposited on a carbonate platform in the northern part of the South China craton. This carbonate platform can be divided into restricted platform, open platform, platform margin shoal, and tidal inlet facies. The tidal inlet facies is an optimal sedimentary environment for the accumulation of phosphoric rock series. Tidal inlets are connected with tidal flat and shallow platform facies. The inlet facies is characterized by abundant algal fossils and moderate wave and tidal activities. The supply of terrigenous phosphate was abundant and weakly turbulent hydrodynamic conditions were optimal for phosphorite deposition in the tidal inlet facies, where phosphatic sediments were winnowed and accumulated.