[1]王崴平,陈毓川,王登红.2014.赣南兴国县良村花岗岩锆石LA-ICP-MS U-Pb 年代学、岩石地球化学与成岩机制研究.大地构造与成矿学,38(2):347-358.
 WANG Weiping,CHEN Yuchuan,WANG Denghong and CHEN Zhenyu.2014.Zircon LA-ICP-MS U-Pb Dating and Petrogeochemistry of the Liangcun Granites and Their Petrogenesis, South Jiangxi.Geotectonica et Metallogenia,38(2):347-358.
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赣南兴国县良村花岗岩锆石LA-ICP-MS U-Pb 年代学、岩石地球化学与成岩机制研究
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《大地构造与成矿学》[ISSN:ISSN 1001-1552/CN:CN 44-1595/P]

卷:
期数:
2014年38卷02期
页码:
347-358
栏目:
出版日期:
2014-05-01

文章信息/Info

Title:
Zircon LA-ICP-MS U-Pb Dating and Petrogeochemistry of the Liangcun Granites and Their Petrogenesis, South Jiangxi
作者:
王崴平1 2 陈毓川1 王登红1 陈振宇1
1.国土资源部成矿作用与资源评价重点实验室, 中国地质科学院 矿产资源研究所, 北京 100037; 2.中国 五矿集团公司, 北京 100010
Author(s):
WANG Weiping1 2 CHEN Yuchuan1 WANG Denghong1 and CHEN Zhenyu1
1. MLR Key Laboratory of Metallogeny and Mineral Resources Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China; 2. China Minmetals Corporation, Beijing 100010, China
关键词:
赣南 花岗岩 锆石U-Pb定年 岩石地球化学 成岩机制
Keywords:
South Jiangxi granite zircon U-Pb dating petrogeochemistry petrogenesis
分类号:
P597
文献标志码:
A
摘要:
良村花岗岩体出露于赣南兴国县良村镇, 为兴国地区燕山早期第一阶段首次岩浆活动的产物, 显示同构造花岗岩的产出特征。岩石类型以黑云母花岗岩为主, 二云母花岗岩、花岗闪长岩次之, 均为过铝质-强过铝质, 轻稀土元素富集明显, 属壳源物质低程度部分熔融所成的S型花岗岩或壳源重熔型花岗岩。4个岩石样品的锆石LA-ICP-MS测年结果显示, 该花岗岩体侵位于147~158 Ma, 属晚侏罗世, 并且至少经历了10 Ma的结晶-成岩史。
Abstract:
The Liangcun granites outcrop within Liangcun town, Xingguo county, in the south of Jiangxi province. The Liangcun granites are product of the PhaseⅠmagmatism of the Early Yanshanian, displaying characteristics of syn-tectonic granite. The batholith consists mainly of biotite-granite which is intruded by the latter stages of dimicaceous-granite and granodiorite. The Liangcun granites are peraluminous to strongly peraluminous, and show LREE enriched patterns. The Liangcun granites are “S-type” or crustal remelting granite derived from low degree partial melting of crustal materials. The LA-ICP-MS zircon U-Pb dating results of 4 granite samples indicate that the Liangcun granites were emplaced at 158 to 147 Ma, i.e., the Late Jurassic. The cooling and crystallization of the Liangcun granites may have lasted ~10 Ma as suggested by the isotopic ages.

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备注/Memo

备注/Memo:
收稿日期: 2013-10-09; 改回日期: 2013-11-06 项目资助: 中国地质大调查项目“我国重要矿产和区域成矿规律研究”(编号: 1212010633903)和“南岭地区岩浆岩成矿专属性研究”(编号: 1212011120989)资助。 第一作者简介: 王崴平(1987?), 男, 博士研究生, 矿床学、矿物学、岩石学专业。Email: bruceminerals@qq.com
更新日期/Last Update: 1900-01-01