| The Lianghe Lailishan tin ore deposit is a main deposit type in the western subzone of the Western Yunnan tin ore zone. This ore deposit is located at the transition spot of Tengchong-lianghe arc structure,that ramed east neighbour three rivers' structure belt,which is in the preceding plart of the Indian and Eurasia tectonic plates' collision belt. There are close time and space relations and origin relation between the ore deposit and the granitic magma activity of the Ximalaya mountain time, formed after the hydrothermal process by the Laoxiongwo, has panned for Taojinchu the mineralization which place, Sangedong ore section was composed to concentrate the area.Investigates and studies after the open country geology and collects predecessor's material, the generalized analysis has studied the composition ore deposit ore body shape, the scale and produces the shape, the ore type, the structure structure, the ore ingredient, the adjacent formation alteration, through the research of the ore deposit trace element, the fluid inclusion , the isotope geochemistry and so on, the mineralization metasomatosis primarily, indicated that the mineralization material originates from the Ximalaya mountain time granite, the ore deposit belongs to the granitic magma activity related hydrothermal deposit.Through the open country geology investigation and indoor generalized analysis and research, we obtain the following result:1st, through the research of Lai Li mountain tin ore mineralization geological condition, the mineralization material main origin in Ximalaya mountain time granite, in the mineralization process, a part of tin in the adjacent formation also has also enter the mineralization fluid, thus has provided the material base for the mineralization.The deposit belongs to the Pyrite—Mica quartz hot liquid deposit.2nd, the mineralization is strictly controled by structure, it is not only a passage for mineralization fluid migration, but also the place where the mineralization material precipitates.3rd, the direct prospecting symbol is: The chapeau de fer, the mica-quartz lithification, the pyrite mineralize, the silicification and the discoloration alteration; The indirect symbol is C2s2 stratum ,it is controlled by the granite outside contact strip north east to the structure crushed zone; geochemistry explore and placer abnormal.4th, there are three advantageous mineralization target areas have been irised approximately: South part of Sangedong-north part of the Laoxiongwo ore section, the area between Panjiafen and Taojinchu, the region of Baishapo-Shedong. |
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