| GuangXi Xidaming-mountain areas are very beneficial geological conditions,mineral resources are rich,so far,has found a gold,silver,lead,zinc and other 10 kinds of minerals,has proven a small green well pb-zn deposit,mineral deposits of large silver deposit,phoenix mountain long tuen medium-sized lead-zinc mine bed,the mining area within the ore-prospecting work in recent years the most prominent for fusui lowe silver lead-zinc polymetallic mining area and big hsin-hsien lead-zinc mine two deposits.This paper,taking"broadly cc daming mountain uplift" endogenous metal metallogenic system and deep prospecting model research project "as the backing,with known geological data as the background,profound comprehensive understanding in daming mountain west on the basis of the regional geological background,this article adopts the numerical simulation of geophysical methods,and combined with the actual geological model are analyzed in theory,and in view of the typical metallogenic zone,the high power IP method is used for the observed,the scope of the vein to identify areas in searching for concealed ore deposits,and whether to provide basis for further exploration and drill and mine planning.In this paper,on the basis of the existing geological data,first of all,wide cc daming mountain area formation are introduced in detail,according to the regional structure of the region,respectively introduces the regional distribution of fold and fault fracture zone in the study area;Of daming mountain west magmatic rocks exposed are introduced,magmatic rocks outcropped in the area,sporadically distributed in daming mountain west double arch core and wing;In the mineral distribution in the case are introduced.In the third chapter,in view of the west daming mountain mineralization area,respectively from around the mineral layer of electrical characteristics,the regional magnetic anomaly characteristics,the area of remote sensing and geochemical anomalous features for the overview of the system.A,according to the electrical characteristics of layer around the mineral,selected the area lowe,phoenix mountain,get the chariot,small five daming mountain,green well mining area,the content of their respective characteristics and mineral distribution and metallogenic conditions is introduced in detail.Second,according to west daming mountain 1:200000 bouguer gravity anomaly contour map and 1:50000 aeromagnetic data,the regional magnetic anomaly are introduced;Third,according to the 1:200000 regional geochemical data and remote sensing satellite known data of remote sensing and geochemical anomalies within the area are analyzed.In the fourth chapter,firstly this paper introduces the principle of electromagnetic prospecting,including controlled source electromagnetic method of vertical magnetic dipole source in layered media formulas are derived,the solution of the vector layer around in,in two-dimensional IP is inversion section,the finite element method is a little bit of the two-dimensional problem of boundary value conditions and variational equation,and the two-dimensional IP data of least squares optimization inversion method is introduced in detail;Secondly,on the basis of the actual geoelectric conditions of mining area,were built with lowe mining area based on layered medium model,with the phoenix mountain,green well mining area based on two-dimensional IP forward model,and analyses the theoretical findings.Finally,choose the west daming mountain area A typical metallogenic region,has carried on the field observation of high power IP scanning,and symmetric four-pole sounding observation,the IP anomalies obtained with known mine drilling is A good corresponding relation,for further ore-prospecting work in this area to provide the basis. |
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