秦岭造山带蟒岭花岗岩锆石LA-ICP-MS U-Pb年龄及其地质意义OA北大核心CSCDCSTPCD
LA-ICP-MS Zircon U-Pb Ages and Implications for Tectonic Setting of the Mangling Granitoid Plutons in Qinling Orogen Belt
蟒岭花岗岩位于东秦岭地区商南-丹凤断裂带北侧的北秦岭构造带上,呈北西西走向,与区域构造线方向基本一致.本文报道了该岩体的锆石LA-ICP-MS U-Pb定年数据和地球化学数据,并结合前人的资料初步总结了该岩体的年代学特征.结果显示,蟒岭花岗岩的岩浆演化可以分为两个阶段:晚侏罗世-早白垩世的二长花岗岩(158.4±1.8Ma～160.5±1.3Ma)和早白垩世中期的钾长花岗岩(124.1±2.0Ma).此外,样品09CL264获得锆石继承核部年龄为…查看全部>>
The Mangling granite is located on the north side of the Shannan-Danfeng foult, eastern sector of the north Qinling Orogen. The granite is in North-West-West strech and in agreement with structural lineament. The paper reports the results of Zircon LA-ICP-MS U-Pb age and geochemical data. The results show that the Mangling granite includs two granite emplacements. Early Monzogranite whose ages ranging from 158.4 ± 1. 8Ma to 160.5 ± 1.3 Ma belongs to Late Jur…查看全部>>
秦海鹏;吴才来;武秀萍;雷敏;侯振辉
中国地质科学院地质研究所,北京,100037中国地质科学院地质研究所,北京,100037安徽省地矿局321地质队,安徽铜陵,244033中国地质科学院地质研究所,北京,100037中国科学技术大学激光剥蚀电感耦合等离子体质谱实验室,合肥,230026
蟒岭花岗岩锆石LA-ICP-MS U-Pb年龄地球化学
Mangling granite zircon LA-ICP-MS U-Pb dating geochemistry
《地质论评》 2012 (4)
783-793,11
本文为中国地质调查局地质调查项目(编号1212010711816)、中国地质科学院基本科研业务费项目(编号2010-SYS-3)的成果.
评论