豫西崤山小妹河岩体LA-ICP-MS锆石U-Pb定年、地球化学特征及地质意义OA北大核心CSCDCSTPCD
geochemical features and geological implications of Xiaomeihe rock mass in Xiaoshan Mountain, western Henan Province
对豫西崤山北部的小妹河岩体中的黑云母石英二长岩进行了LA-ICP-MS锆石U-Pb定年，30个锆石测点中有23个测点的U-Pb同位素测定值位于或接近一致线，年龄值集中于2644~2695Ma、2490~2546Ma、2367Ma、1844~1859Ma、143.6Ma和129.6~133.8Ma 6个年龄段内。最新年龄段内的9个锆石测点206Pb/238U年龄加权平均值为131.5±0.9Ma，代表了小妹河岩体的形成时代。23颗锆石的U–Pb年龄…查看全部>>
The Xiaomeihe rock mass lies in northern Xiaoshan Mountain. In this study, sample XMH01 of biotite quartz monzonite was analysed by LA-ICP-MS. 30 zircon spots were analyzed, and results of 23 spots are adjacent to 207Pb/235U-206Pb/238U in the con⁃cordia diagram, with U-Pb ages clustered in 2644~2695Ma, 2490~2546Ma, 2367Ma, 1844~1859Ma, 143.6Ma and 129.6~133.8Ma. The weighted average 206Pb/238U age of 9 zircon spots ranging from 129.6Ma to 133.8Ma is 131.5 ± …查看全部>>
梁涛;卢仁
河南省有色金属地质勘查总院，河南郑州450052 河南省有色金属深部找矿勘查技术研究重点实验室，河南郑州450052
天文与地球科学
小妹河岩体LA-ICP-MS锆石U-Pb年龄埃达克质岩石圈拆沉成矿潜力崤山
Xiaomeihe rock massLA-ICP-MS zircon U-Pb agesadakiticlithosphere delaminationmetallogenic potentialXiaoshan Mountain
《地质通报》 2015 (8)
1526-1540,15
河南省国土资源厅科技攻关项目（编号2011-622-25、2011-622-36、2014-06）、河南省有色金属地质矿产局科研项目（编号YSDK2013-08、YSDK2012-03）
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