Tracing the fluid evolution of the Kiruna iron oxide apatite deposits using zircon, monazite, and whole rock trace elements and isotopic studies
作者: Anne WesthuesJohn M. HancharChristopher R. VoiseyMartin J. WhitehouseGeorge R. RossmanRichard Wirth
作者单位: 1Department of Earth Sciences, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
2Department of Geoscience, Swedish Museum of Natural History, Stockholm, Sweden
3Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA
4Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Potsdam, Germany
刊名: Chemical Geology, 2017, Vol.466 , pp.303-322
来源数据库: Elsevier Journal
DOI: 10.1016/j.chemgeo.2017.06.020
关键词: Iron oxide apatiteNorrbottenKirunaPaleoproterozoicZirconMonaziteSm-NdU-PbHydrothermal alterationLA-ICPMSFTIR spectroscopyTEM
英文摘要: Abstract(#br)The ore genesis of the Paleoproterozoic iron oxide apatite deposits in the vicinity of Kiruna in northern Sweden is poorly understood, despite a century-long mining history and 2500Mt of iron ore with grades of 30 to 70wt% Fe produced in the region to date. Zircon grains from the ore, recently dated at ca. 1874Ma, show very different appearances compared to zircon from surrounding host rocks (ca. 1880Ma) and related intrusions (ca. 1880 and ca. 1874Ma), particularly an inclusion-rich rim. In contrast, zircon from the host rocks, and a proximal granite intrusion, exhibit typical igneous growth zoning. Electron microprobe results show near stoichiometric composition for Zr, Si, and Hf...
全文获取路径: Elsevier  (合作)
影响因子:3.154 (2012)

  • monazite 独居石
  • zircon 锆石
  • isotopic 同位素置换
  • apatite 磷灰石
  • alteration 蚀变
  • trace 痕迹
  • whole 全部的
  • fluid 
  • evolution 进化
  • spectroscopy 分光学