【摘要】：研究區(qū)位于特提斯-喜馬拉雅構(gòu)造域東部“三江”構(gòu)造帶中南段,處于幾大板塊結(jié)合帶交匯部位,義敦島弧南端,金沙江結(jié)合帶以東,甘孜—理塘結(jié)合帶西側(cè)。近年來該區(qū)域大型及超大型斑巖型銅礦床的發(fā)現(xiàn)使得該區(qū)備受關(guān)注并逐漸成為我國重要的銅金屬礦集區(qū)。綜合信息找礦模型是指在定性找礦模型的基礎(chǔ)上,總結(jié)該模型涉及的找礦標(biāo)志,將其作為變量,根據(jù)一定的統(tǒng)計方法,對成礦變量進(jìn)行賦值,再通過“GIS”軟件,實現(xiàn)定性信息轉(zhuǎn)換為定量信息,以達(dá)到對研究區(qū)的綜合信息預(yù)測模型進(jìn)行預(yù)測評價。本文收集整理了研究區(qū)內(nèi)已有的地質(zhì)、物探、化探、遙感資料,對研究區(qū)成礦地質(zhì)背景、典型礦床特征、區(qū)域成礦規(guī)律進(jìn)行研究,總結(jié)區(qū)域找礦模型,并通過編制數(shù)字化基礎(chǔ)圖件,結(jié)合“GIS”軟件,將各種類型的數(shù)據(jù)進(jìn)行綜合整理、疊加,篩選有利成礦地段,劃出成礦遠(yuǎn)景區(qū)。主要取得成果如下:(1)對研究區(qū)內(nèi)典型的斑巖型銅礦進(jìn)行資料收集整理,以及野外實地踏勘,對典型礦床的地層、構(gòu)造、巖漿巖、礦體礦化特征、蝕變分帶等進(jìn)行了詳細(xì)地研究,建立了不同成礦帶上不同類型的斑巖型銅礦典型礦床的找礦模型。(2)搜集了研究區(qū)物探、化探、遙感等相關(guān)數(shù)據(jù),對其進(jìn)行異常處理后得出研究區(qū)斑巖型銅礦床的分布與異常的聯(lián)系,建立找礦標(biāo)志。(3)在綜合信息找礦模型建立后,運用礦產(chǎn)資源定量評價方法,對綜合信息找礦模型中的各個變量進(jìn)行評價并賦值。將研究區(qū)按照成礦帶的不同劃分出來,通過特征分析法對其不同的模型進(jìn)行分別的評價與賦值,最后運用“GIS”將各個成礦要素信息相疊加,提出預(yù)測遠(yuǎn)景區(qū)。通過以上研究,對研究區(qū)的地質(zhì)背景、區(qū)域地質(zhì)數(shù)據(jù)進(jìn)行了收集總結(jié),并提出了區(qū)域內(nèi)典型礦床的找礦標(biāo)志,由此推廣到整個研究區(qū)上,對研究區(qū)以后的斑巖型銅礦找礦有一定的指示作用。最后根據(jù)對已建立的綜合信息找礦模型進(jìn)行權(quán)重賦值,一共確定了5處遠(yuǎn)景區(qū)分別是中心絨-羊拉遠(yuǎn)景區(qū)、香格里拉遠(yuǎn)景區(qū)、木里-西范坪-寧蒗遠(yuǎn)景區(qū)、稻城省母-麥洼遠(yuǎn)景區(qū)、稻城蒙自-茶花-麥日遠(yuǎn)景區(qū)。
[Abstract]:The study area is located in the middle and south section of the "Sanjiang" structural belt in the eastern Tethys Himalayan tectonic domain. It is located at the intersection of several major plate conjunctions, the southern end of the Yidun Island Arc, the east of the Jinsha River junction belt, and the west side of the Ganzi-Litang junction belt. In recent years, the discovery of large and super-large porphyry copper deposits in the region has attracted much attention and gradually become an important copper ore concentration area in China. The comprehensive information prospecting model is to sum up the prospecting criteria involved in the model on the basis of the qualitative prospecting model, take it as a variable, assign the metallogenic variable according to a certain statistical method, and then pass "GIS" software. The qualitative information is transformed into the quantitative information in order to predict and evaluate the comprehensive information prediction model in the study area. In this paper, the existing geological, geophysical, geochemical and remote sensing data in the study area are collected and sorted out. The metallogenic geological background, typical ore deposit characteristics and regional metallogenic regularity in the study area are studied, and the regional ore-prospecting models are summarized. By compiling digital basic maps and combining with "GIS" software, all kinds of data are comprehensively arranged, superposed, favorable ore-forming areas are screened, and ore-forming scenic spots are delineated. The main achievements are as follows: (1) the typical porphyry copper deposits in the study area are collected and sorted, and the field exploration is carried out. The strata, structures, magmatic rocks, mineralization characteristics of orebodies and alteration zones of typical deposits are studied in detail. The prospecting models of typical deposits of porphyry copper deposits in different metallogenic zones are established. (2) relevant data of geophysical prospecting, geochemical exploration, remote sensing and so on are collected. The relationship between the distribution and anomaly of porphyry copper deposits in the study area is obtained, and the prospecting criteria are established. (3) after the establishment of the comprehensive information prospecting model, the quantitative evaluation method of mineral resources is used. Each variable in the comprehensive information prospecting model is evaluated and assigned. The study area is divided according to the metallogenic belt, and its different models are evaluated and assigned by the method of characteristic analysis. Finally, the information of each metallogenic element is superimposed by "GIS", and the prediction of the scenic spot is put forward. Through the above research, the geological background and regional geological data of the study area are collected and summarized, and the prospecting marks of typical deposits in the area are put forward, which are extended to the whole study area. It is useful for porphyry copper deposit prospecting in the study area. Finally, according to the weight assignment of the established comprehensive information prospecting model, a total of 5 scenic spots are identified as central velvet, Yangla, Shangri-La, Muli, Xifangping and Ninglang, respectively. Daocheng Provincial Mother-Mai WA Scenic area, Daocheng Mengzi-Camellia-Mai Yuan Scenic area.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.41

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