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东川桃园式铜矿Ar-Ar同位素年龄及意义
叶霖; 刘玉平; 李朝阳; 刘家军
2004
Source Publication矿物岩石
Volume24Issue:2Pages:57-60
metadata_24其它
Abstract通过对东川桃园铜矿与铜矿共生石英的^40Ar/^39Ar同位素年龄的测定,得到马鞍形年龄谱,其坪年龄为768.43Ma±0.58Ma.等时线年龄为770.00Ma±5.44Ma。该矿床后期改造作用明显,并非同生沉积或成岩作用早期成矿,而与晋宁期Rodina大陆裂解有关。东川铜矿的形成可能是在Rodinia大陆裂解时,从深部带来大量成矿物质改造成岩时期初始的矿化,形成矿床的叠加富集和最终定位.因此,晋宁-澄江期是东川铜矿的主成矿期。
Keyword东川
Subject Area中国典型特殊区带大规模成矿作用及其动力学
Funding Organization中国科学院知识创新工程项目(编号:KZCX2—101) 中国科学院矿床地球化学开放实验室基金
Indexed ByCSCD
Language中文
CSCD IDCSCD:1630614
Citation statistics
Cited Times:9[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/219
Collection矿床地球化学国家重点实验室_矿床地球化学国家重点实验室_期刊论文
Recommended Citation
GB/T 7714
叶霖,刘玉平,李朝阳,等. 东川桃园式铜矿Ar-Ar同位素年龄及意义[J]. 矿物岩石,2004,24(2):57-60.
APA 叶霖,刘玉平,李朝阳,&刘家军.(2004).东川桃园式铜矿Ar-Ar同位素年龄及意义.矿物岩石,24(2),57-60.
MLA 叶霖,et al."东川桃园式铜矿Ar-Ar同位素年龄及意义".矿物岩石 24.2(2004):57-60.
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