本文選題：西南天山 + 比勒提地區(qū)��； 參考：《中國地質(zhì)大學(北京)》2015年碩士論文

【摘要】：西南天山是我國重要的金和有色金屬礦產(chǎn)遠景區(qū)。比勒提位于塔里木盆地西北緣,南天山造山帶南部,為塔里木盆地與西南天山的接觸部位,受北部的阿合奇斷裂帶和南部的柯坪逆沖推覆構(gòu)造共同影響,區(qū)內(nèi)以古生代地層和新生代地層為主,中生代地層不發(fā)育。由于自然地理及氣候、交通等條件極其惡劣,地質(zhì)及物化探工作程度很低,大比例尺的地球化學資料還是一項空白。因此本次工作以區(qū)域地質(zhì)礦產(chǎn)調(diào)查項目為依托,開展比勒提地區(qū)水系沉積物測量。通過對比勒提地區(qū)開展1:5萬區(qū)域地質(zhì)礦產(chǎn)調(diào)查,了解了該區(qū)地質(zhì)情況和成礦背景。開展水系沉積物測量,分析19種元素,通過統(tǒng)計分析,查明了區(qū)域地球化學特征,豐富了比勒提地區(qū)大比例尺的地質(zhì)、化探基礎(chǔ)資料。研究區(qū)相對與區(qū)域背景值,除Cu元素與區(qū)域背景值相近之外,其余均處于高背景,表明元素在該地區(qū)濃集,為成礦提供了有利條件。致礦序列前端(Zx40)的元素主要有:Au、Hg、As、Pb、Mo、Ba、Ag、Sb,其中Au元素的致礦系數(shù)最大,達到196.08。研究確定該區(qū)主成礦元素為Au、Ag、Cu、Pb,低溫遠程元素組合As、Sb、Hg為主成礦元素的伴生元素,Mo為高溫成礦伴生元素。比勒提地區(qū)19種元素共圈出單元素異常259處,綜合異常5處,圈定了3處找礦遠景區(qū),對喀拉鐵克金銅鉛鋅成礦遠景區(qū)采用地球化學定量預測方法(面金屬量方法)進行了資源評價,潛在Au資源量達到309.77kg,潛在Cu資源量達到17844t。找礦潛力較大。
[Abstract]:Southwest Tianshan is an important gold and non-ferrous mineral area in China. Biletti is located on the northwest margin of the Tarim Basin and south of the South Tianshan orogenic belt, which is the contact site between the Tarim Basin and the southwest Tianshan Mountains. It is influenced by the northern Aceh fault zone and the Keping thrust nappe structure in the south. Paleozoic and Cenozoic strata are dominant in the area, Mesozoic strata are not developed. Because of the extremely bad conditions of natural geography and climate, traffic and so on, the geological and geophysical prospecting work is very low, and the geochemical data on large scale are still blank. Therefore, based on the regional geological and mineral survey project, the water system sediment survey in Bileti area is carried out. The geological situation and metallogenic background of the area are understood by a regional geological and mineral survey of 1: 50 000 in the area of Perete. The authors carried out river system sediment survey and analyzed 19 elements. Through statistical analysis the regional geochemical characteristics were found and the geological and geochemical data of large scale in Bileti area were enriched. The relative and regional background values of the study area, except Cu element and regional background value, are all in high background, indicating that the elements are concentrated in this area, which provides favorable conditions for mineralization. The main elements of the ore-forming sequence are: 1 / Au-HgGN AsPbPbMoB BaAg-AgSb, in which au elements have the largest mineralization coefficient (196.08), and the ore-forming coefficient of au is 196.08 in the first part of the ore-forming sequence. The main ore-forming elements in this area are Au-Ag-Cu-Pb, and the associated elements of As-SbHg-Hg-dominated metallogenic elements at low temperature are associated with high temperature ore-forming elements. There are 259 single element anomalies and 5 synthetic anomalies in 19 elements in Bileti area, and 3 ore prospecting scenic spots have been delineated. The geochemical quantitative prediction method (surface metal quantity method) was used to evaluate the potential au resource and potential Cu resource of KaraTekejin copper-lead-zinc metallogenic area. The potential au resource reached 309.77 kg and the potential Cu resource reached 17844 t. The prospecting potential is great.
【學位授予單位】：中國地質(zhì)大學(北京)
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P618.2;P632

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