Discovery of an adakite-like pluton near Dongqiyishan (Beishan, NW China) — Its age and tectonic significance
作者: Wen ZhangVictoria PeaseTairan WuRongguo ZhengJicheng FengYuankai HeHongling LuoCao Xu
作者单位: 1Laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education, School of Earth and Space Sciences, Peking University, Beijing 100871, China
2Department of Geological Sciences, Stockholm University, SE-106 91, Stockholm, Sweden
刊名: LITHOS, 2012, Vol.142-143 , pp.148-160
来源数据库: Elsevier Journal
DOI: 10.1016/j.lithos.2012.02.021
关键词: BeishanAdakite-like granitePaleozoicCAOBSIMSGeochemistry
原始语种摘要: Abstract(#br)The Dongqiyishan granitic pluton is exposed in the Eastern Beishan area, in the central part of the Southern Central Asia Orogenic Belt. SIMS U–Pb zircon dating indicates that the Dongqiyishan pluton was emplaced at 356±2Ma. Geochemically the pluton is calc-alkaline and characterized by high SiO 2 (>65%), Al 2 O 3 (mostly >15%), Na 2 O/K 2 O ratios (1.3–3.9) and Sr (generally >400ppm). Samples display positive to weakly negative Eu anomalies (δ Eu =0.81–2.32), low HREE, Y and Yb (Y<18ppm, Yb<1.9...
全文获取路径: Elsevier  (合作)
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影响因子:3.779 (2012)

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关键词翻译
关键词翻译
  • pluton 深成岩体
  • tectonic 构造的
  • crust 外壳
  • granitic 花岗状的
  • ratios 遗传比率
  • significance 显著性
  • granite 花岗岩
  • subduction 俯冲
  • Paleozoic 古生代的
  • continental 大陆的