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The Characteristics of Tectonic Ore-control and Ore-bearing Structure Discriminate of Fluorite, Chifeng Area.

Author: MaYing
Tutor: ZhangShouTing
School: Chinese Geology University (Beijing)
Course: Structural Geology
Keywords: Fluorite Mine Structural Control of Ore Judgment On the ore structure Chifeng
CLC: P619.215
Type: Master's thesis
Year: 2011
Downloads: 141
Quote: 0
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Abstract


Chifeng region located in the the ancient Asian TECTONOMETALLOGENIC domain the Bin of the Pacific TECTONOMETALLOGENIC domain intersection site, located in the northern margin of the eastern section of the North China Block and Daxinganling the southern section of the tectonic position . In accordance with the theory of geomechanics views , genus EW direction Tianshan - Yinshan the latitudinal tectonic belt NNE direction Daxinganling handover of the new China - based structural system Composite Strip . Study area fluorite mine ore- wall rock to Jurassic volcanic - volcaniclastic rocks and in the early Yanshanian - acidic intrusive rocks as the mainstay , accounting for more than three-quarters of the total . Chifeng area fluorite mineralization era body is the late Yanshan mostly in - epithermal fissure filling type deposits . Regional NNE trending fault zone is a region fluorite mineralization trunk ore-controlling structure , the vast majority of fluorite deposit (dot ) produced in the NNE trending fault with or EW to NW trending fault zone composite parts. The the Chifeng region fluorite ore body is mainly affected by the occurrence of faults control the orebody occurrence and ore-controlling structure is basically the same , as veins , lenticular and irregular lenticular output . The fluorite ore body distribution , followed by NE-NNE direction , NW-NNW to nearly SN and nearly EW . From the orebody ( pulse ) morphology , ore texture and structure , mineral assemblage , wall rock alteration , the establishment of vertical zonation patterns of fluorite deposit ( body ) . The multi-phase activity features combined with quartz , fluorite , calcite veins interpenetration relationship summarize the area fluorite mineralization . Serious coverage for workspace to mine geological research in the field as the basis , summarizes structural ore-controlling characteristics , metallogenic regularity and prospecting direction primaries PROSPECTING section . Further - object - oriented multi-disciplinary multi-technology approach to carry out joint research , the use of very low frequency (VLF ) geophysical methods EH4 magnetotelluric sounding and high-precision ground magnetic survey reveals a planar distribution of tectonic belt and deep development characteristics , and then supplemented by geochemical methods , such as X-Ray Fluorescence technology to find abnormal Ca elements , in order to achieve the fluorite mine ore-bearing structure of the discriminant .

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CLC: > Astronomy,Earth Sciences > Geology > Of ore deposits > Deposit classification > Nonmetal deposit ( Zonglun,) > Chemical industrial raw materials > Fluorite
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