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Northeast Yunnan lead-zinc ore-controlling structure characteristics and metallogenic prediction

Author: HongJianLei
Tutor: ZhuJieYong
School: Kunming University of Science and Technology
Course: Mineral prospecting and exploration
Keywords: Ore-controlling structure Pb-Zn deposit Ore-controlling regularity Metallogenic prediction Northeast Yunnan
CLC: P618.4
Type: Master's thesis
Year: 2010
Downloads: 247
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Abstract


Lead and zinc mine is located in northeastern Yunnan into the southwestern margin of the Yangtze platform , Xiaojiang fault , Yadu - Ziyun fault and Shizong - Maitreya fracture within the triangle formed by approximation , is an important lead-zinc origin. Structural development in the study area , zonal distribution, and possessed a number of times , multi-stage event features ; Pb-Zn deposit , point, point number mineralization , widely distributed , and construction distribution consistent with a unique mine geological conditions . Lead-zinc mine in northeastern Yunnan by strata , ore-controlling structure and other factors control action , in which the control of ore-controlling structure most obvious effect . This paper combines a series of mentors signed lead-zinc mineralization conditions in northeastern Yunnan research project by collecting previous geological data , detailed geological survey and remote sensing interpretation , structural features from ore distribution , structure and lead-zinc ore mineralization other aspects of the relationship described ore ore controlling structure characteristics . Through detailed geological studies , analyzes and north-east of the regional ore-controlling structures acting distribution, determination of regional ore-controlling structure , north-east ore-controlling structure , the interlayer and the NW-trending fault zone between the inner plume fracture Contact . Identified ore-controlling structure , the relationship between lead and zinc ore , ore-controlling structure summed ore control regularity and patterns. Xiaojiang fault zone and Zhaotong - Qujing buried deep fault zone forming fluids provide a favorable geological setting , North East to pressure torsion fracture of ore-forming fluid penetration provides the channel , enabling the formation of the North East to interlayer fracture belt, anticline axis collapse site and part of the NW-trending faults plume formed to provide a space for the ore body , summed up the ore-controlling structure ore types . According to the law ore ore-controlling structure , combined with typical ore deposit ore-controlling structure analysis , field research results , remote sensing, geophysical and geochemical data in the study area predicted target three grade Ⅰ , Ⅱ grade target 3 , at 3 a target of prospecting works ⅰ level verification, achieved a scale ranging from lead-zinc ore body and better information proved the high reliability of this prediction has some theoretical and practical significance .

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CLC: > Astronomy,Earth Sciences > Geology > Of ore deposits > Deposit classification > Non-ferrous metals
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