【摘要】：本文通過在西藏邦卓瑪?shù)貐^(qū)開展的1∶10000土壤地球化學(xué)測量工作,運用元素的變化系數(shù)、元素富集離散特征對邦卓瑪?shù)貐^(qū)土壤地球化學(xué)測量的12種微量元素進(jìn)行地球化學(xué)統(tǒng)計分析,論述了12種微量元素的成礦潛力,得出Au、Ag、W、Pb、Sb 5種元素具有較大的成礦潛力。并通過相關(guān)分析、因子分析確立了測區(qū)內(nèi)元素組合特征,共劃分了三組主成礦元素組合(即Au-Ag-Cu-Bi-W;PbSn;Sb),運用襯值異常法在區(qū)內(nèi)圈定組合異常,結(jié)果顯示,組合異常明顯,異常套合較好,大體呈NW向串珠狀展布。根據(jù)組合襯值異常疊加,在研究區(qū)內(nèi)圈定了4個重點靶區(qū),為下一步在該區(qū)內(nèi)尋找Au、Ag、Sb、W、Pb等多金屬礦提供了理論依據(jù)。
[Abstract]:Based on the geochemical survey of 1: 10000 soil carried out in Bangzoma region, Tibet, the variation coefficient of elements is used. The geochemical statistical analysis of 12 trace elements in soil geochemistry survey in Banjoma area was carried out by element enrichment and discrete characteristics. The metallogenic potential of 12 trace elements was discussed, and Au,Ag,W,Pb, was obtained. The five elements of Sb have great metallogenic potential. Through correlation analysis, factor analysis established the characteristics of element assemblage in the measured area, and divided three groups of major metallogenic element assemblages (i.e. Au-Ag-Cu-Bi-W;PbSn;). Sb), uses the contrast anomaly method to delineate the combinatorial anomaly in the region. The results show that the combination anomaly is obvious and the abnormal casing is good, and it is generally distributed in the shape of NW bead. According to the anomalous stacking of the combined contrast value, four important target areas are delineated in the study area, which provides a theoretical basis for the next step to search for Au,Ag,Sb,W,Pb and other polymetallic ore deposits in this area.
【作者單位】： 桂林理工大學(xué)地球科學(xué)學(xué)院;武警黃金第十一支隊;
【基金】：中國地質(zhì)調(diào)查局項目(編號1212011121236) 武警黃金指揮部項目(編號DZKY2016-186) 國家重點研發(fā)計劃項目(編號2016YF060063-3)聯(lián)合資助
【分類號】：P632.1
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本文編號：2374487