【作者】 许卫； 岳书仓； 杜建国； 谢建成； 孙乘云； 王有生；

【Author】 Xu Wei Yue Shuchang Du Jianguo Xie Jiancheng Shun Chengyun Wan Youshengl)Anhui Academy of Geological Survey, Hefei 230001 2)Dept. of Resources and Environmental Science, Hefei University of Technolegy, Hefei 230009

【机构】 安徽省地质调查院； 合肥工业大学资源与环境科学系；

【摘要】 安徽贵池地区沉积锰矿床赋存于二叠纪孤峰组,包括沉积作用形成的碳酸锰矿和经后期氧化作用形成的氧化锰矿,地球化学特征表现为Mn的强烈富集,而Ca、Mg、Si则大量流失,指相地球化学特征分析,认为本区锰矿层及含锰岩系的物源即有陆源,又有海源,其沉积水体较深,结合沉积特征及地史演化分析,自栖霞期发生的海侵在茅口早期达最大,本区处于深水陆棚相-盆地相沉积环境,发生含锰地层的沉积。更多还原

【Abstract】 The sedimentary manganese ore existence Gufeng formation of Permian, and incloud carbonate-manganese which formate by sedimentation and oxidant-manganese which formate by late oxidation, it’s geochemistry character were the high concentration of Mn, especially the high concentration in oxidant-manganese, and the Ca, Mg, Si made lot shift, it recognize by the character of facies geochemistry the provenance have two type : provenience and ocean provenance of manganese ore and manganese-bearing rock, and have high sedimentary depth. The analysis with the character of sedimentary and the evolution of geohistory, it recognize the transgression was highest in Maokou period which prodout from Qixia period, it’s sedimentary face was shelf face-base face.更多还原