Generation, transport, and collection of Fe-Ni-Cu sulfide melts
1 IntroductionPrimary magmatic Ni-Cu-(PGE) mineralization can be subdivided into three types on the basis of distributions and textures (Lesher and Keays, 2002): Type Ⅰ stratiform contact mineralization occurs at or near the base of the host unit, commonly exhibits an ore segregation profile comprising (from base to top) massive or inclusion-bearing semi-massive, net-textured (Ol-rich) or matrix (Ol-poor), and/or disseminated sulfides, and appears to have formed early in the crystallization history of the host unit. Type Ⅱ strata-bound internal mineralization occurs within the host unit, comprises coarse disseminated, fine disseminated, net-textured, or inclusion-bearing semi-massive sulfides, and appears to have formed later in the crystallization history of the host unit. Type Ⅲ stratiform reef mineralization occurs within the host unit, normally comprises disseminated sulfides and PGMs often associated with chromite, and appears to have formed though fractional crystallization, magma-magma or magma-fluid mixing, and/or contamination processes.
C.M.Lesher
Mineral Exploration Research Centre, Department of Earth Sciences, Laurentian University, Sudbury, Ontario, Canada
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
6-9
2009-09-01（万方平台首次上网日期，不代表论文的发表时间）