Copper (gold) and non-metal deposits hosted in Mesozoic shoshonite and K-rich calc-alkaline series from Lishui in the Lower Yangtze region, China
作者: J.C. ZhouJ.P. ZhouJ. LiuT.P. ZhaoW. Chen
作者单位: 1Department of Earth Sciences, Nanjing University, Nanjing 210093, P.R. China
2Department of Earth and Space Sciences, State University of New York at Stony Brook, Stony Brook, NY 11794-2100, USA
3Henan Institute of Geological Sciences, Zhengzhou 450053, P.R. China
刊名: Journal of Geochemical Exploration, 1996, Vol.57 (1), pp.273-283
来源数据库: Elsevier Journal
DOI: 10.1016/S0375-6742(96)00042-8
关键词: geochemical explolartioncopper (gold) and non-metal depositsshoshoniteK-rich calc-alkaline seriesMesozoicLishuiChina
原始语种摘要: Abstract(#br)The early Cretaceous volcanic sequences from the Lishui Basin in the Lower Yangtze region may be subdivided into K-rich calc-alkaline and shoshonite series. Geochemically, typical features of the shoshonite series are high total alkali, K 2 O Na 2 O ratio, A1 2 O 3 , Fe 2 O 3 FeO ratio, large ion lithophile elements (Rb, Ba, Th, U, LREE) and low TiO 2 and Fe contents. In contrast, K-rich calc-alkaline series have lower K 2 O, Na 2 O and Fe 2 O 3 FeO ratio, but are rich in Fe and Sr.(#br)The copper (gold) deposits are associated with the shoshonite series and occur within the Guanshan caldera, as a hydrothermal infill vein type with low to moderate temperatures of formation. Silicification and pyritization are in close relationship with Au mineralization. δ 34 S values for...
全文获取路径: Elsevier  (合作)
影响因子:1.952 (2012)

  • shoshonite 正边粗玄岩
  • China 中国
  • gold 
  • alkaline 碱的
  • volcanic 火山的
  • Lower 下部的
  • Mesozoic 中生代
  • lithophile 亲石的
  • geochemical 地球化学的
  • bentonite 斑脱岩