(1. 中南大學 有色金屬成礦預(yù)測教育部重點實驗室,長沙 410083;
2. 中南大學 地球科學與信息物理學院,長沙 410083;
3. 中南大學 資源與安全工程學院 礦業(yè)工程博士后流動站,長沙 410083)
摘 要: 新疆喀拉通克銅鎳多金屬成礦帶是中亞造山帶中部一個重要的Cu-Ni-Au多金屬成礦帶。通過討論喀拉通克銅鎳多金屬礦床的成礦物質(zhì)來源和成礦機制來研究該礦床的成巖成礦模式。結(jié)果表明:喀拉通克銅鎳多金屬礦床中的硫具有明顯的隕石硫特征,說明硫來自地幔,但并不排除地殼硫的加入。巖體的銣鍶同位素也已表明有地殼物質(zhì)的混入。地層和礦石中的鉛來源一致,均來源于地幔的玄武巖漿。新疆喀拉通克銅鎳多金屬礦床的成礦模式是以巖漿深部熔離作用為主導(dǎo)的脈動式成礦。
關(guān)鍵字: 喀拉通克;銅鎳礦床;成巖成礦模式
(1. Key Laboratory of Nonferrous Metal Metallogenic Prediction, Ministry of Education,
Central South University, Changsha, 410083, China;
2. School of Geosciences and Info-physics, Central South University, Changsha 410083, China;
3. Post-doctoral Research Center of Mining Engineering, School of Resources and Safety Engineering,
Central South University, Changsha 410083, China)
Abstract:Kalatongke Cu-Ni poly-metal metallogenic belt is one of the most important Cu-Ni-Au belt in Central Asian Orogenic belt. The ore-forming material source and metallogenic mechanism were studied to discuss the diagenetic and metallogenic model of Kalatongke Cu-Ni deposit. The results suggest that the sulphur has the characteristics of meteorolite sulphur which implies that the sulfur is derived from mantle, but is possibly open to the sulphur from crust. Rb-Sr of rock mass also agrees with the precipitation of crust substance. The lead sources of both stratigraphy and ore are similar, and come from basaltic magma of mantle. The ore-forming models is pulsing mineralization dominated by liquation of deep magma.
Key words: Kalatongke; Cu-Ni deposit; diagenetic and metallogenic model


