Samarium-Neodymium and Rubidium-Strontium Isotopic Dating of Veined REE Mineralization for the Bayan Obo REE-Nb-Fe Deposit, Northern China

被引：40
|
作者：
Hu, Fang-Fang [1 ]
Fan, Hong-Rui [1 ]
Liu, Shuang [1 ]
Yang, Kui-Feng [1 ]
Chen, Fukun [1 ]
机构：
[1] Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
来源：
RESOURCE GEOLOGY | 2009年 / 59卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Bayan Obo; Northern China; rubidium-strontium dating; samarium-neodymium dating; veined REE mineralization; RB-SR SYSTEM; INNER-MONGOLIA; CHEMICAL-COMPOSITIONS; ORE-DEPOSIT; PETROGENESIS; CONSTRAINTS; MINERALS; AGE; ND;
D O I：
10.1111/j.1751-3928.2009.00107.x
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
The Bayan Obo REE-Nb-Fe deposit in Inner Mongolia, China, consists of later REE-mineralizing fluorocarbonate veins cutting the earlier banded and massive ores in the deposit. Samarium-neodymium dating using the minerals including huanghoite and rubidium-strontium dating using single-grain biotites both from the later veins show concordant isochrons corresponding to 442 +/- 42 Ma (2 sigma uncertainty) and 459 +/- 41 Ma, respectively. The isochron ages suggest that the later REE vein mineralization took place during the middle Paleozoic at Bayan Obo, consistent with geological observations and age data previously reported.
引用
收藏
页码：407 / 414
页数：8
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