Age and petrogenesis of Mingshui-Shuangjingzi granites from the northern Beishan area, northwest China, and their implications for tectonic evolution
作者: Wen ZhangVictoria PeaseQingpeng MengRongguo ZhengTairan Wu
作者单位: 1Chinese Academy of Geological Sciences
2Stockholm University
3Peking University
刊名: Geosciences Journal, 2017, Vol.21 (5), pp.667-682
来源数据库: Springer Journal
DOI: 10.1007/s12303-017-0017-5
关键词: Central Asia Orogenic BeltBeishanPalaeozoicGranitePost-collisionalGeochemistryGeochronology
英文摘要: The Mingshui and Shuangjingzi granitic plutons are exposed in the northern Beishan area, in the southern Central Asia Orogenic Belt. U-Pb zircon dating indicates that Mingshui secondary intrusive lithosfacies and Shuangjingzi quartz monzodiorite formed at 328 ± 2 Ma and 272 ± 2 Ma, respectively. The former is composed of grey white monzogranites and potassic altered flesh red monzogranites. Geochemistry indicates they are calc-alkaline I-type granites. Shuangjingzi granites are mainly composed of unfractionated calc-alkaline I-type quartz monzodiorite, granodiorite and monzogranite. The Mingshui grey white monzogranites with negative initial εNd (–2.0 to–1.7) and moderate initial 87Sr/86Sr values (0.706740 to 0.710092) were probably derived from mixing of...
原始语种摘要: The Mingshui and Shuangjingzi granitic plutons are exposed in the northern Beishan area, in the southern Central Asia Orogenic Belt. U-Pb zircon dating indicates that Mingshui secondary intrusive lithosfacies and Shuangjingzi quartz monzodiorite formed at 328 ± 2 Ma and 272 ± 2 Ma, respectively. The former is composed of grey white monzogranites and potassic altered flesh red monzogranites. Geochemistry indicates they are calc-alkaline I-type granites. Shuangjingzi granites are mainly composed of unfractionated calc-alkaline I-type quartz monzodiorite, granodiorite and monzogranite. The Mingshui grey white monzogranites with negative initial εNd (–2.0 to–1.7) and moderate initial 87Sr/86Sr values (0.706740 to 0.710092) were probably derived from mixing of...
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影响因子:0.618 (2012)

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关键词翻译
关键词翻译
  • northern 北方的
  • tectonic 构造的
  • petrogenesis 岩石成因论
  • collisional 碰撞的
  • northwest 
  • quartz 石英
  • dating 年代测定
  • zircon 锆石
  • component 成分
  • granitic 花岗状的