(1. 有色金屬礦產(chǎn)地質(zhì)調(diào)查中心，北京 100012；2. 中南大學(xué) 有色金屬成礦預(yù)測教育部重點實驗室，長沙 410083；3. 中南大學(xué) 地球科學(xué)與信息物理學(xué)院，長沙 410083)
摘 要: 青海東昆侖地區(qū)位于秦—祁—昆古陸邊緣深斷裂成礦構(gòu)造帶西端。區(qū)內(nèi)大地構(gòu)造演化先后經(jīng)歷了4次較大規(guī)模的拉伸與閉合過程，以昆北、昆中和昆南三大斷裂為界分為祁漫塔格晚元古—早古生代疊加裂陷帶(Ⅰ)、東昆侖古生代島弧帶(Ⅱ)和古生代消減雜巖帶(Ⅲ)3個三級大地構(gòu)造單元。在對典型礦床地質(zhì)特征及前人資料系統(tǒng)分析的基礎(chǔ)上，提出了造山晚期斑巖型+矽卡巖型銅多金屬礦床、造山晚期斑巖型銅多金屬礦床、晚元古代熱水噴流沉積并經(jīng)巖漿疊加改造富集的銅金多金屬礦床3種重點尋找的銅礦床類型。根據(jù)區(qū)域總體成礦規(guī)律，優(yōu)選出了7處銅礦找礦靶區(qū)，并分析了其找礦前景，認(rèn)為雪山峰斑巖型銅礦靶區(qū)和東大灘斑巖與噴流沉積復(fù)合型銅礦靶區(qū)找礦前景最好。
關(guān)鍵字: 銅礦類型；大地構(gòu)造演化；成礦規(guī)律；礦床地質(zhì)特征；找礦靶區(qū)；東昆侖地區(qū)
（1. China Nonferrous Metals Resource Geological Survey, Beijin 100012, China;2. Key Laboratory of Metallogenic Prediction of Nonferrous Metals, Ministry of Education,Central South University, Changsha 410083, China;3. School of Geosciences and Info-Physics, Central South University, Changsha 410083, China）
Abstract:Eastern Kunlun, Qinghai Province, China, is located in the west of Qing-Qi-Kun Old Land Edge Deep Fracture Metallogenic Tectonic Belt. The tectonic in Eastern Kunlun went through four large-scale stretching and closing processes, and three third tectonic units formed with Northern Kunlun Fault, Middle Kunlun Fault and Southern Kunlun Fault as boundary, are Qimantage Superimposed Rift Zone in late Proterozoic—early Paleozoic (Ⅰ), Eastern Kunlun Island-arc Zone in Paleozoic (Ⅱ) and Abatement Complex Zone in Paleozoic (Ⅲ). Based on study for geological characteristics of typical deposit and predecessors’ material in the Eastern Kunlun, three key copper deposit types for prospecting, were put forward, which are namely porphyry + skarn type Cu polymetallic deposits in the late of orogenic, porphyry type Cu polymetallic deposits in the late of orogenic and copper gold and polymetallic deposits of exhalative sedimentary and superimposed on the transformation of the enrichment by magma in the late Proterozoic. Seven targets for prospecting copper deposits were chosen and the prospecting outlook was analyzed according to the regional metallogenic regularity, and it was pointed out that Xueshanfeng Target of porphyry copper deposit and Dongdatan Target of compound type copper deposit of porphyry and SEDEX have the best prospecting outlook.
Key words: copper deposit types; tectonic evolution; metallogenic regularity; geological characteristics of deposits; prospecting targets; Eastern Kunlun
