| The manganese is one of the major element in the earth, comparison with other Fe-group element, it has more complicated characteristic in mineralogy, geochemistry and ore deposit. The manganese only has some oxide and carbonate type in nature by control with it's geochemistry characteristic. The manganese ore deposit which have economic significance are sedimentation (metamorphism)-manganese and oxidant-manganese ore deposit.The majority manganese ore deposit in China distribute in south China, special in Guangxi-Hunan- Guizhou province. The manganese ore deposit in China can produce many chronology strata, from Proterozoic Era to Quaternary Period. There are many high-grand manganese ore such as Xialei manganese ore- Xiangtan manganese ore- Songtao manganese ore, etc. But in Yanzi area, there are only some minor manganese ore, and major distribute in Guichi, Anhui province. It major produce in Gufeng formation of Permian, and another in Lantian formation of Sinian Period and in Huanglong formation of Carboniferous Period.The high-grand manganese ore deposit is very important lack of resource in China, especially in east Chinese which economic developed. There have relative rich of manganese ore deposit resource in Guichi area, Anhui province. There are some high-grand manganese ore such as Tantian manganese ore- Maya manganese ore- Huikeng manganese ore-. Pailou manganese ore-Huaduling manganese in Guichi area, and Datong manganese ore in Tonling raea, all this produce in Gufeng formation of Permian. Now, the work which exploration of high-grand manganese ore has important significance, and this support by Chinese government So, my study not only has theory significance, but also has exploration significance.The study of sedimentation manganese ore deposit from material source - sediment mineralization to the quality of control basin- attribute- palaeogeography- microfacies- sequence stratigraphy, etc. Now the study of sequence stratigraphy and basin analyese are the earth science frontiers. There are many people had studied the stratigraphy- palaeogeography- sequence stratigraphy of Permian in Lower Yangzi area. But all this study were region, it lack detailed study in fine sequence stratigraphy and sediment microfacies of Gufeng formation of Permian.The high-grand oxidant-manganese ore deposit form primary sediment carbonate manganese by epidiagenesis, and this process was very complex, final form stable mineral in earth's surface. Recently the study of geochemistry dynamics of minerogenic element, but there are lack of study of geochemistry dynamics of minerogenic element in earth's surface. The preserve and evolution which is one of minerogenic system has very important significance and position. There are many scientist study from ore deposit changeable to discover primary blind deposit, or study encichment minerogenic in earth's surface. The endogenic mine all had supergene changeable in lower Yangzi area and south China.My study include: (1)Through the study of detailed petrology- strata, palaeogeography of the Gufeng formation of Permian, especially the study of sequence stratigraphy, to understand the palaeogeography enviroment and conditions of sediment manganese ore deposit (2)Through the study of material source of basin- sediment accumulation sequence- stratigraphy pattern, to understand the evolution law of sediment basin, (3)through the study of typical manganese ore deposit and it' s region compare, to investigate the geologic charac-ter of manganese ore deposit and it' s form law. ㊣t understand the series of changeable of manganese ore deposit in earth' s surface, and minerogenic element in earth's surface-, geochemistry dynamics of fluid, investigate the control or influence element in earth' s surface.It has some new progress through my work:(1) It establish the Permian strata sequence in lower Yangzii area, and detailed study the lithostratigraphic of Gufeng formation, and detailed region compare.(2) It detailed study of stratigraphy sequence of Permian in lower Yangzi area, especial divide b...
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