| Kalamaili metallogenic belt is an important gold and polymetallic mineralization belt of EastJunggar region. Belt west Kalamaili by Qingshuiquan, Shuangquan to Nanmingshui area,morphology was similar narrow east west wide strip, with good gold mineralization geologicalconditions, gold has been found more than70points.Study area is located in the eastern section of Kalamaili metallogenic belt, Hongliugou west,east Nanmingshui. District Neikalamai in deep faults, Qingshui-Sujiquan faults across the region,secondary structure development; gold mineralization geological conditions favorable; LatePaleozoic strata exposed Devonian and Carboniferous. It has been found gold deposits (points)25, mainly Shuangquan, Suji Quan, Nanmingshui gold deposit.This paper Shuangquan gold ore containing quartz veins were accurately LA-ICP-MS zirconU-Pb dating of the age to obtain reliable data on the East Junggar and accurately determine thetime of collis ion stage gold mineralization Shuangquan provide data to support the era; toShuangquan gold and Nanmingshui gold as the main object, the system performed geology,petrology, zircon U-Pb geochronology research, summarized the study area gold mineralizationlaw; in the basis of these studies, combined with regional geological data diverse geological,geophysical, geochemical and remote sensing, Science and accurately divided three prospectingarea has good prospects in the future for the area indicated gold resource exploration work certaindirection. Yielded the following results and understanding:1.The use of LA-ICP-MS zircon U-Pb dating of gold-containing ore obtained Shuangquanquartz veins zircons have206Pb/238U weighted average age of303.53±0.79Ma, representing theformation age of auriferous quartz veins, belonging late Carboniferous nappe tectonic systembefore and after extrusion product, indicating the formation of the gold is not the result of aperiod, but after several superimposed mineralization enrichment course of evolution.2.Geochemical data indicate that the crust and mantle mixing with hydrothermal magmatic meltcharacteristics, further illustrate the East Junggar continental collis ion early stage of LateCarboniferous to Permian happen-probably continental collision orogeny and the subsequenttectonic movements stretching relaxation sex.3.The study area magma deep faults and deposits distributed control, and secondary faults control the deposit in place, so the secondary mineralization faults are favorable position; golddeposit into a ribbon with the overall distribution of local spatial concentration Bout point.4.A systematic study Shuangquan and Nanmingshui gold metallogenic features, acomprehensive summary of gold ore-controlling factors and prospecting indicators in the region.5.on the basis of previous studies, combined with regional metallogenic geological conditionsand geological data, in-depth analysis of typical metallogenic features and a comprehensivesummary of the study area metallogenic regularity, science, accurately divided in three places withgood looking regional mineral prospects, provide a theoretical basis for the future of the regionfind similar gold deposits. |
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