易志强,文景,赖群生,谢珂,闫贺龙,王忠建,李帅.五垛山复式岩基锆石U-Pb年龄及其地质意义[J].地质找矿论丛,2017,32(4):594-603 |
五垛山复式岩基锆石U-Pb年龄及其地质意义 |
Zircon U-Pb age of Wuduo mountain compound batholith and its geological significance |
投稿时间:2016-07-25 修订日期:2017-11-10 |
DOI:10.6053/j.issn.1001-1412.2017.04.010 |
中文关键词: 五垛山复式岩基 锆石 LA-MC-ICP-MS年龄 石门序列 五垛山序列 河南省 |
英文关键词:Wu Duoshan Compound Batholith Zircon LA-MC-ICP-MS age Shimen seriese Wu Duoshan series |
基金项目:河南省地勘基金项目“镇平县幅、石门幅、安皋幅1∶5万区域地质、区域矿产调查”(编号:ZB[2009]57号-5)资助。 |
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中文摘要: |
五垛山复式岩基位于北秦岭构造带东段,地处朱阳关—夏馆断裂和乔端—瓦穴子断裂之间,整体呈NWW向展布,由多个岩体复合组成,具多期次岩浆活动特征,岩性主要为黑云母二长花岗岩。本文在其解体出来的石门序列和五垛山序列中,采集5件样品进行了锆石U-Pb年龄值测定。测定结果对该区岩浆活动、构造背景及区域构造演化、地层时代确定等具有一定的地质意义。 |
英文摘要: |
Wu Duoshan compound batholith is located between Zhuyangguan-Xiaguan fault and Qiaoduan-Waxuezi fault in the eastern North Qinling orogenic belt. Generally, the batholith extends in NWW direction and consists of several intrusive bodies characteristic of multi-intrusion. Now it is divided into several series and five samples are collected from series Shiman and Wuduoshan and the zircon U-Pb age dated. The result is significant to determine the magmatic activity, tectonic setting, regional tectonic evolution and stratigraphic time. |
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