Associations between zircon and Fe–Ti oxides in Hiltaba event magmatic rocks, South Australia: atomic- or pluton-scale processes?
作者: M. R. M. FergusonK. EhrigS. MeffreA. R. Cherry
作者单位: 1ARC Centre of Excellence in Ore Deposits (CODES), School of Natural Sciences , University of Tasmania , Hobart , TAS 7001 , Australia
2;BHP Olympic Dam , Adelaide , SA 5000 , Australia
刊名: Australian Journal of Earth Sciences, 2020, Vol.67 (2), pp.201-220
来源数据库: Taylor & Francis Journal
DOI: 10.1080/08120099.2019.1653990
关键词: Gawler Range VolcanicsRoxby Downs GraniteCrystal clustersSilicic magmaZirconOlympic Dam
原始语种摘要: Abstract(#br)The Hiltaba Suite intrusive rocks and penecontemporaneous Gawler Range Volcanics (GRV) comprise the 1590 Ma Gawler silicic large igneous province in the Gawler Craton, South Australia. Zircon is principally associated with Fe–Ti oxides and clusters of touching crystals in these rocks, including in the Roxby Downs Granite (RDG), host of the Olympic Dam iron oxide–copper–gold deposit, and in other intrusive rocks that comprise the Olympic Province. There has been no explicit evaluation and explanation of potential origins published for concentrations of zircon with Fe–Ti oxides (herein zircon-rich clusters) found in these and similar rocks of western North America and elsewhere. Here we use U–Pb geochronology, mineral morphologies and compositions, and insights from surface...
全文获取路径: Taylor & Francis  (合作)
影响因子:1.468 (2012)

  • zircon 锆石
  • atomic 原子的
  • magmatic 岩浆的
  • geochronology 地质年代学
  • pluton 深成岩体
  • concordant 地层整合的
  • Australia 澳大利亚
  • intrusive 贯入体
  • exsolution 出溶酌
  • minerals 矿物