| The study area is located in Jiulong County,Ganzi Tibetan Autonomous Prefecture,Sichuan Province.B2 ore body,is located in the west of the Liwu copper-zinc deposit.Through the data analysis of the study area alteration belt,spectral characteristics of surrounding rock,element content analysis,HySpex hyperspectral imaging,and geological background,we discuss on the material source and migrate regularity.Based on the study of regional geological background and ore deposit geological feature of B2 ore body in Liwu copper-zinc deposit,and based on the previous data analysis in the study area,field survey and sampling of field and indoor spectrum,element analysis data and HySpex hyperspectral imaging,access to the ore-bearing rock series in the study area the spectra of the rock assemblage characteristics,element content and HySpex hyperspectral imaging data,the copper prospecting work for the area to provide a certain basis and reference.Paper has made research mainly includes the following aspects:?1?Through the field observation,B2 ore body midway through each sample and indoor analysis and sorting,this paper determines the ore-bearing rock series of B2 ore body includes biotite schist,biotite quartz schist,biotite quartz feldspar schist.?2?Through the study of regional geological background and ore deposit geological feature of B2 ore body,selection of representative in the area of rock samples to study,according to the different rock classification could be divided into quartzite,schist and amphibolite.?3?Field is sampled B2 ore section indoor measured spectral data,and compose a HySpex hyperspectral imaging as spectral data of rock spectral curve features analyzed,the results show that for the same lithology rock,compose a HySpex hyperspectral imaging as spectral data and field sampling indoor the measured spectral characteristic curve,the two curves in a certain similarity,in the same band absorption or reflection characteristics,combined with the element content analysis found that and element has relationship of linear type logarithmic.?4?Deep to shallow for B2 ore body in the space,the occurrence in mica quartz schist and alteration of surrounding rock,main elements Cu and Zn ore bodies,with the obvious elements Pb,into the elements Cd?Sn?Sb.It is believed that the mass migration of Cd?Sn?Sb and Pb is important to the accumulation of Cu and Zn elements.?5?Liwu copper deposit B2 ore body rock reflection spectrum test analysis and its element content relations study,sums up the law of reflection spectrum characteristics variation of the rock.Application of mathematical statistics method,choose the optimal band combination plan true color RGB band is 80,band 52,band 15,provide the best image and theory basis for element migration patterns. |
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