Laser probe 40Ar-39Ar ages of metasomatic K-feldspar from the Hougou gold deposit,northwestern Hebei Province,China

被引：4

作者：

徐兴旺

张宝林

蔡新平

刘玉林

机构：

来源：

ScienceinChina(SeriesD:EarthSciences) | 2002年 / 06期

基金：

中国国家自然科学基金;

关键词：

40Ar-39Ar age; laser probe; tnetasomatic K-feldspar; Hougou gold deposit;

D O I：

暂无

中图分类号：

P618.51 [金];

学科分类号：

0709 ; 081803 ;

摘要：

The Hougou gold deposit in northwestern Hebei is a typical K-metasomatism-related gold deposit hosted by K-altered rocks overprinting alkali intrusive rocks. In order to determine the age and pulse intervals of K-metasomatism in this gold deposit, some metasomatic K-feldspars from K-altered rocks are selected to measure their formation time by laser probe 40Ar-39Ar dating method. The new analyzing data show that these metasomatic K-feldspar formed during 202.6 Ma and 176.7 Ma, and the corresponding K-metasomatism and associated gold mineralization occurred in the early stage of Mesozoic era. The pulse intervals of K-metasomatism in the Hougou area are estimated to be about 4 Ma.

引用

页码：559 / 564

页数：6

共 3 条

[1]

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[2]

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[3]

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