| The study area is located in the northwest of western Junggar in the Xie mi si tai Island arc belt.Late Paleozoic volcanic activity for a long time,strong activity,wide distribution.Therefore,the volcanic rocks in this area are large in thickness and complicated in lithology,and have good geological and mineralization conditions.The study area have rich mineral resources,especially copper and iron.However,with the increasing difficulty of prospecting,the traditional means of prospecting can not meet the needs of prospecting in complex geological conditions,so it is very important to carry out comprehensive prospecting method.Aiming at the need of mineral exploration in the study area,this paper chooses the A er mu qiang copper deposit of volcanic type and as a typical deposit in the study area by using the modern exploration technology and means such as geology,remote sensing geophysics,geochemistry,and comprehensively and systematically studies a variety of favorable mineralization conditions,prospecting signs of the copper of A er mu qiang,and on this basis to establish a comprehensive prospecting model.Finally,based on the comprehensive prospecting model,the prospecting target area is delineated in the study area.Specific work and achievements are as follows:(1)The geophysical anomalies and magnetic anomaly information of the geophysics are extracted by the high-precision magnetic area measurement of 1: 10000 ground.(2)Using the geochemical data of 1: 50,000 soil geochemistry in the Xie mi si tai area,the reference value of the lower limit of the anomaly was calculated by using T = X +1.5S and the contents as Cr?Co?Ni?Cu?As? Ag?Cd? Sb?Au ?Hg elements and Delineated the lower limit of the anomaly,through the multivariate statistical methods(correlation analysis,cluster analysis,etc.)to study the distribution of elements within the mine enrichment characteristics and symbiotic combination of law to determine the geochemical anomaly prospecting signs.And then use the processed geochemical data in the surfer software to draw a single element,combined element geochemical anomaly map.(3)Using and processing landsat8 OIL data,mineralization alteration information extraction was carried out by principal component analysis method,and the distribution of hydroxyl and iron dyeing was obtained.The composite color image of the working area was obtained by landsat8 OIL 741 band,which was visually solved by 1: 10000 geological map.The linear structure of the A er mu qiang copper mine was obtained by remote sensing.(4)Based on the geologic background,regional geophysical field,geochemical field characteristics,geophysics,geochemistry,remote sensing anomaly information characteristics and geological characteristics,ore-controlling factors and prospecting signs of the A er mu qiang copper deposits of volcanic-type established A comprehensive prospecting model for the A er mu qiang copper deposit of volcanic type.(5)Based on the comprehensive prospecting model of the A er mu qiang copper deposit of volcanic type.and by using 1: 1 million geology,high-precision magnetic measurement,epicure ladder and 1: 50,000 soil geochemical measurements delineated 1 anomaly target area(1 area),The surface mineralization characteristics of the target area are similar to those of the A er mu qiang small copper mine,the metallogenic conditions are good,and it is a good target for finding the continental volcanic type copper and gold deposit in the prospecting area.Good prospecting prospect. |
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