| 赣南陂头花岗岩体Nd-Sr同位素特征及其意义 |
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| 引用本文： | 范春方,陈培荣.赣南陂头花岗岩体Nd-Sr同位素特征及其意义[J].地质找矿论丛,2000,15(3):282-287. |
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| 作者姓名： | 范春方 陈培荣 |
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| 作者单位： | 南京大学,成矿作用国家重点实验室,南京大学,地球科学系,江苏,南京,210093 |
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| 基金项目： | 国家自然科学基金项目!( 49772 1 1 0 )，国家重点基础研究项目!( G1 990 4 3 2 0 0 )，核工业总公司地质局项目 |
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| 摘 要： | 对赣南陂头花岗岩岩体进行 Rb- Sr同位素定年研究 ,确定了其 Rb- Sr等时线年龄为(178.2± 0 .84 ) Ma,表明其形成于中侏罗世早期。并研究了陂头花岗岩 Sm- Nd组成 ,计算出其 εNd(t)值 (- 5.4～ - 6 .4 )和 T2 DM值 (140 6～ 1482 Ma) ,确定其物质来源为较年轻的地壳。
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| 关 键 词： | 赣南 A型花岗岩 陂头岩体 钕 锶 同位素 |
| 收稿时间： | 2000/3/29 0:00:00 |
| 修稿时间： | 2000/7/12 0:00:00 |
Nd AND Sr ISOTOPIC COMPOSITIONS OF PITOU GRANITIOD IN SOUTH JIANGXI PROVINCE |
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| FAN Chun-fang and CHEN Pei-rong.Nd AND Sr ISOTOPIC COMPOSITIONS OF PITOU GRANITIOD IN SOUTH JIANGXI PROVINCE[J].Contributions to Geology and Mineral Resources Research,2000,15(3):282-287. |
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| Authors: | FAN Chun-fang and CHEN Pei-rong |
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| Institution: | State Key Laboratory of Mineral Deposits, Nanjing University; Dept. of Earth Sciences, Nanjing University, Nanjing 210093, China;State Key Laboratory of Mineral Deposits, Nanjing University; Dept. of Earth Sciences, Nanjing University, Nanjing 210093, China |
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| Abstract: | The Rb-Sr isochron ages of the Pito u granitiod in south Jiangxi province is 178.2±0.84 Ma. It is suggested that the Pitou granitiod be formed in the Early Jurassic. The εSr(t) value of Pitou granitiod is 76.97~77.7, the εNd(t) value ranges from -5.4 to -6.4 and the T2DM age ranges from 1406 Ma to 1482 Ma, which show that the Pitou granitiod was derived from the younger crust. |
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| Keywords: | A-type granite Pitou granitiod Nd and Sr isotope Nd mod el age Gannan |
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