Pre-emplacement sulfur saturation of Ni-Cu sulfide ore-producing magma at Pechenga, Russia: Evidence from feeder dikes

摘要：

1 IntroductionThe 1.98 Ga Pechenga Ni-Cu sulflde deposits are located in the lower part of differentiated, mafic-ultramafic intrusions. The magmatic bodies were emplaced as concordant, sill-like injections into the Pilgujarvi Sedimentary Formation, which is mainly composed of graywackes and shales rich in sulfur and graphite. This, up to 1-km-thick sedimentary unit, which has also been called the Productive Formation, represents the uppermost sedimentary unit of the Pechenga Group and is underlain and overlain by thick piles of submarine, massive and pillowed tholeiitic lavas of the Kolosjoki and Pilguj(a)rvi Volcanic Formations (see Fig. 1).

作者: Hanski Eero Luo Zhenyu Walker Richard J. Oduro Harry

作者单位: Department of Geosciences, P.O.Box 3000, 90014 University of Oulu, Finland Department of Geology, University of Maryland, College Park, MD 20742, USA

会议类型: 国际会议

会议名称: 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)

会议地点: 西安

会议语种:英文

页码: 189-191

在线出版日期: 2009-09-01（万方平台首次上网日期，不代表论文的发表时间）