The Nd-Sr isotope study of Mesozoic granitoids in Jiangxi Province

Shen Weizhou; Ling Hongfei; Li Wuxian

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The Nd-Sr isotope study of Mesozoic granitoids in Jiangxi Province

机译：江西省中生代花岗岩的Nd-Sr同位素研究

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Nd-Sr isotopic compositions of 12 Mesozoic granitoids from Jiangxi Province have been reported. They show low-ε_Nd(-13.8- -8.3), high-I_Sr(0.1069-0.73981)and old t_DW (2087-1635 Ma). comparison between the Sm-Nd isotopic compositions of the granitoids and those of the basement metamorphoc rocks suggests that these granitoids were mainly derived from the metasedimentary rocks. There is an east-west trend Mesozoic granitoid zone with low- t_DW from S.Jiangxi to S.Fujian. the origin of these granites was preliminarily discussed.

机译：已经报道了来自江西省的12种中生代花岗岩的Nd-Sr同位素组成。它们显示出低ε_Nd（-13.8- -8.3），高I_Sr（0.1069-0.73981）和旧的t_DW（2087-1635 Ma）。花岗岩的Sm-Nd同位素组成与基底变质岩的同位素组成的比较表明，这些花岗岩主要来源于准沉积岩。从江西到福建有一个东西向的中生代花岗岩带，t_DW低。初步讨论了这些花岗岩的起源。

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《Chinese science bulletin》 |1999年第15期|p.1427-1431|共5页
作者
Shen Weizhou; Ling Hongfei; Li Wuxian;
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正文语种 eng
中图分类自然科学现状及发展;
关键词
Nd-Sr isotopic compositions; material source; low-_Dw zone;

机译：Nd-Sr同位素组成;物质来源低_Dw区;

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The Nd-Sr isotope study of Mesozoic granitoids in Jiangxi Province

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