Petrology and geochemistry of the Jinchuan intrusion and associated Ni-Cu-(PGE) mineralization
The Jinchuan intrusion in northwestern China hosts the third-largest Ni-Cu-(PGE) deposit in the world. It is enigmatic because of the very large amount of sulfide (at least 500 Mt at ～1.2 wt％ Ni) compared to the relatively small volume of the intrusion (6000 × 300m), the concentrically-zoned nature of the intrusion and mineralization, the predominance of net-textured ore, and the paucity of S (as a potential external source) in the country rocks. The central part of the intrusion (central parts of Mining Area Ⅱ) hosts about 60％ of the total reserves and is characterized by a concentric zonation of magmatic facies. The core is composed of net-textured ore (Po-Pn ± Ccp) in dunite with less than 10％ interstitial silicates.
N.Tonnelier C.M.Lesher N.T.ARNDT
Mineral Exploration Research Centre and Department of Earth Sciences, Laurentian University, Sudbury G(e)osciences, LCGA, Universit(e) de Grenoble 1, 1381 rue de la Piscine, 38400 St.Martin dHeres, Fr
国际会议
Xian International Ni-Cu(Pt) Deposit Symposium 2009(2009 西安·Ni-Cu(Pt)岩浆矿床国际学术研讨会)
西安
英文
61-63
2009-09-01（万方平台首次上网日期，不代表论文的发表时间）