The molybdenite Re-Os dating from the Nianzigou Mo deposit, Inner Mongolia and its geological significance.

被引：0

作者：

Zhang ZuoLun ^{[1
,2
]}

Zeng QingDong ^{[1
]}

Qu WenJun ^{[3
]}

Liu JingMing ^{[1
]}

Sun XingGuo ^{[1
,2
]}

Zhang RuiBin ^{[1
,2
]}

Chen WeiJun ^{[1
,2
]}

Qin Feng ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

[3] Natl Res Ctr Geoanal, Beijing 100037, Peoples R China

来源：

ACTA PETROLOGICA SINICA | 2009年 / 25卷 / 01期

关键词：

Re-Os isotopic dating; Nianzigou Mo deposit; Xilamulun molybdenum metallogenic belt; Inner Mongolia; CU-MO; RHENIUM;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The Nianzigou Mo deposit, Inner Mongolia, is a recently discovered large-quartz veins type Mo deposit. Six samples of molybdenite for Re-Os isotopic dating are analyzed and the model ages obtained from 150.2 +/- 2.2 to 154.4 +/- 2.2Ma, averaging 152.4 +/- 1.3Ma(2 sigma MSWD=1.6), and a good isochronic age of 154.3 +/- 3.6Ma(2 sigma, MSWD=1.9). It is indicated that the Nianzigou Mo deposit was formed in the Late Jurassic which belongs to the large-scale Yanshan molybdenum metallogenic period, and the tectonic settings are Mesozoic tectonic regime transformation of eastern China. The Re contents of the molybdenite are 12.6X10(-6) to 37.0x10(-6), averaging 24.9X10(-6). According to the contents of Re in Nianzigou and contrasting with other molybdenum-bearing deposits, we consider the ore-forming materials of Nianzigou Mo deposit are derived from the crust-mantle mixed source and mainly from the crustal source.

引用

页码：212 / 218

页数：7

共 35 条

[11] Huang D.H., 1994, Mineral Deposits, V13, P221, DOI DOI 10.1007/BF02872630
[12] Jiang S.Y., 2000, J. Nanjing University (Natural Sci.), V36, P669
[13] Li HY., 1996, J BUREALL HEBEI GEOL, V19, P236
[14] Li S.L., 1998, Mar. Geol. Quat. Geol., V18, P45
[15] [刘建明 Liu Jianming], 2004, [地学前缘, Earth science frontiers], V11, P269
[16] Liu ZG., 1999, EARTH SCI FRONTIERS, V6, P85
[17] LUCWIG K, 1999, GEOCHRONOLOGY CTR SP
[18] Luo M.J., 1991, CHINESE MOLYBDENUM D, P1
[19] Mao J.W., 2004, ActaGeologicaSinica, V01, P121
[20] Mao JW, 2005, ACTA PETROL SIN, V21, P169

← 1 2 3 4 →