(1. 中南大學(xué) 教育部有色金屬成礦預(yù)測(cè)重點(diǎn)實(shí)驗(yàn)室 地球科學(xué)與信息物理學(xué)院，長沙 410083；
2. 湖南省地質(zhì)調(diào)查院，長沙 410000；3. 江西理工大學(xué) 資源與環(huán)境工程學(xué)院，贛州 341000；
4. 東華理工大學(xué) 研究生院，南昌 330013)
摘 要: 雪嶺礦區(qū)銅多金屬礦化沿?zé)粲敖M和漁戶村組層間斷裂帶產(chǎn)出，部分與輝綠巖接觸產(chǎn)出。為了探索其成礦作用和成礦物質(zhì)來源，在礦區(qū)系統(tǒng)取樣，研究地層及輝綠巖地球化學(xué)特征。結(jié)果表明：礦區(qū)各地層均較上地殼富集Ag、As、Pb、Sb，斷裂構(gòu)造運(yùn)動(dòng)有利于成礦物質(zhì)的遷移富集。礦區(qū)輝綠巖為鈣堿性系列巖石，形成于大陸板內(nèi)構(gòu)造環(huán)境，為峨眉山玄武巖同期產(chǎn)生的同源異相巖漿活動(dòng)產(chǎn)物。經(jīng)綜合分析，礦區(qū)礦化應(yīng)是深部成礦物質(zhì)受構(gòu)造運(yùn)動(dòng)活化運(yùn)移至淺部構(gòu)造有利位置沉淀富集所致，圍巖提供了部分成礦物質(zhì)，輝綠巖對(duì)礦化具一定積極的作用。
關(guān)鍵字: 雪嶺；地層；地球化學(xué)；輝綠巖；礦床成因
（1. Key Laboratory of Metallogenic Prediction of Nonferrous Metals, Ministry of Education,
School of Geosciences and Info-Physics, Central South University, Changsha 410083, China;
2. Hunan Institute of Geological Survey, Changsha 410000, China;
3. Faculty of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China;
4. Graduate School, East China Institute of Technology, Nanchang 330013, China）
Abstract:Cu-polymetallic mineralization occurs in the interlaminar fault of Dengying Formation and Yuhucun Formation in Xueling mining area, and parts of mineralization contact with diabase. In order to explore the mineralization and ore-forming material source, the systematic sampling was carried out to research the geochemistry characteristics of the strata and the diabase. The results show that the strata contain more element contents of Ag, As, Pb and Sb comparing with the upper crust, and the tectonic movement is beneficial to the migration and enrichment of metallogenic material. The diabase which formed in the tectonic settings for continental intraplate belongs to calc-alkaline series, it is the product of polymorphism magmatic activities of the Emeishan basalt. By synthetic analysis, the mineralization is resulted from that the deep metallogenic material activated and migrated under the influence of fault, then enriched in the shallow structural favorable position. The surrounding rocks provide parts of the metallogenic material, and the diabase is favorable for mineralization.
Key words: Xueling; strata; geochemistry; diabase; genesis of deposit
