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Abstract:
选取福建省西南部紫金山中粗粒花岗岩、石壁寨西部含斑细粒二长花岗岩和东部斑状含黑云母二长花岗岩作为研究对象,利用LA-ICP-MS法对三个岩体的锆石进行了U-Pb、Lu-Hf和微量元素分析,获得了3个岩体的岩浆结晶分别为156.5±2.7Ma(晚侏罗世),166.2±8.1Ma(中侏罗世)和154.1±1.4Ma(晚侏罗世)。锆石的Lu-Hf同位素分析结果表明,锆石的两阶段Hf模式年龄(tDM2)分别为1.6~2.2Ga、1.7~2.0Ga和1.7~1.9Ga。锆石Hf同位素初始值ε_(Hf)(t)均为负,分别为-14.88~-8.40、-11.9~-7.8和-10.9~-7.4。锆石的ε_(H...
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Source :
地质学报
Year: 2017
Issue: 10
Volume: 91
Page: 2212-2230
Cited Count:
WoS CC Cited Count: 0
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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