北山造山带中部早古生代伸展构造体制:来自石板井辉长岩的年代学及地球化学证据OA北大核心CSCDCSTPCD
Early Paleozoic Crustal Extensional Tectonic Regime in the Central Part of Beishan Orogenic Belt: New Evidence from Geochronology and Geochemistry of Gabbro in Shibanjing
北山造山带位于华北板块、塔里木板块和哈萨克斯坦板块交汇部位.为了研究北山地区早古生代大地构造属性,基于1∶5万区域地质矿产调查,采用LA-ICP-MS锆石U-Pb同位素定年法对分布于石板井地区的辉长岩体进行了年龄测定和岩石地球化学测试.结果表明:辉长岩体锆石U-Pb年龄为498.9±2.4Ma,属晚寒武世.地球化学数据显示:岩石具有较低的SiO2 (40.39％～53.62％)和较高的Al2O3(12.56％～19.26％)、CaO(8.09％～…查看全部>>
The Beishan orogenic belt is situated in the juncture area of Paleozoic Kazakstan Plate,Tarim Plate and North China Plate.On the basis of survey result of 1 ∶ 50000 regional geological mineral resources,this study conducted analysis of the gabbro distributed in the Baijing area using LA-ICP-MS zircon U-Pb dating and geochemical analysis in order to understand Early Paleozoic tectonic attribute of the Baishan area.The results show that these grabbros have U-P…查看全部>>
陈超;修迪;潘志龙;张欢;张金龙;李庆喆;专少鹏
河北省区域地质矿产调查研究所,河北廊坊,065000河北省区域地质矿产调查研究所,河北廊坊,065000河北省区域地质矿产调查研究所,河北廊坊,065000河北省区域地质矿产调查研究所,河北廊坊,065000河北省区域地质矿产调查研究所,河北廊坊,065000河北省区域地质矿产调查研究所,河北廊坊,065000河北省区域地质矿产调查研究所,河北廊坊,065000
北山造山带早古生代伸展构造辉长岩石板井
Beishan orogenic beltEarly Paleozoicextensional tectonicgabbroShibanjing
《地质学报》 2017 (8)
1661-1673,13
本文为阴山成矿带地质矿产调查项目(12120114064101)资助的成果.
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