• 责任者：Lei Huanling (State Key Laboratory of Mineral Deposits Research ; Department of Earth Sciences ; Nanjing University ; Nanjing 210093 ; China) ; Jiang Shaoyong
• 刊名：Mineral Deposits
• 出版年：2012
• 卷期：31(2)
• 关键词：滑石矿床 ; talc deposit ; 江西 ; Jiangxi Province
• 页码：p.241-254
• 图表：6 illus., 5 tables, 40 refs.
• 分类号：1002
• issnNo：ISSN0258-7106
• isbnNo：CN11-1965/P

///The Yangcun talc deposit in Guangfeng County of Jiangxi Province is one of the superlarge talc deposits in the world. The talc ore consists mainly of oolite granular talc with a small amount of quartz, carbonates and disseminated organic matter, assuming typical sedimentary oolite granular structure.  The authors hold that the required silicon in talc was probably provided by silica-rich hydrothermal fluid with slightly higher ⁸⁷Sr/⁸⁶Sr values than the seawater. It is considered that the Yangcun talc deposit may have a syngenetic hydrothermal sedimentary origin. Magnesium was mainly derived from magnesium-rich seawater and silicon was mainly derived from silicon-rich and high ⁸⁷Sr/⁸⁶Sr hydrothermal fluid which was formed by seawater infiltrating and leaching of the old crustal strata.