西天山巴尔盖提花岗岩体年龄、地球化学特征与构造意义OA北大核心CSCDCSTPCD
Geochronology, geochemical properties and tectonic significance of Baergaiti granitoid in western Tianshan Mountain, NW China
巴尔盖提花岗岩体位于伊犁盆地北缘西天山博罗霍洛构造带.锆石LA-ICP-MS U-Pb年龄(374±7.0) Ma显示岩体侵位于晚泥盆世.岩石为斑状黑云母花岗岩,其主量元素SiO2、Al2O3、K2O、Na2O的含量分别为70.72%~79.12%,9.87%~14.51%,4.13%~5.54%,2.87%~4.35%,富碱、高钾、低镁钛,属高钾钙碱性系列;轻稀土相对富集,(La/Yb)N为7.61~16.31,具有显著的负Eu异常;相对富集大…查看全部>>
The Baergaiti granitoid is located in the Boluohuoluo tectonic belt in the western Tianshan Mountain of the Yili Basin.LA-ICP-MS zircon U-Pb shows age of 374±7.0 Ma, corresponding to the Late Devonian.Petrogeochemical analyses suggest that the intrusion belong to calc-alkaline metaliferous rocks characterized with high silica, potassium, and alkalinity, low magnesium and titanium.The contents of SiO2, Al2O3, K2O, Na2O range 70.72%-79.12%, 9.87%-14.51%, 4.13%…查看全部>>
高山林
中国石化 石油勘探开发研究院,北京 100083
能源科技
巴尔盖提花岗岩体锆石U-Pb年龄I-A型花岗岩造山后伸展西天山
Baergaiti granitoidzircon U-Pb datingI-A type granitepost-orogenic extensionwestern Tianshan
《石油实验地质》 2017 (3)
362-369,8
国家科技重大专项(2011ZX05005-004) 资助.
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