| 辽北凡河群时代探讨兼论殷屯组的时代 |
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| 引用本文： | 杨忠杰.辽北凡河群时代探讨兼论殷屯组的时代[J].国土资源,1991(4). |
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| 作者姓名： | 杨忠杰 |
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| 作者单位： | 辽宁省地质矿产局区域地质调查队 大连 |
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| 摘 要： | 辽宁北部地区凡河群源于斋藤林次的凡河系,其时代归属尚有争议。目前多数人将凡河群与蓟县地区的中、上元古界对比;殷屯组的时代则以暂置震且纪居主导地位。笔者稂据凡河群地史演化、所处大地构造位置、变质作用、含海相火山岩夹层、同位素年龄资料等综合因素分析;认为凡河群的时代以归属长城纪为宜,殷屯组时代归属蓟县纪较合适。
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| 关 键 词： | 辽宁北部 凡河群 长城纪 殷屯组 蓟县纪 |
A DISCUSSION ON THE TIME OF FANHE GROUP AND YINTUN FORMATION OF NORTH LIAONING |
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| Yang Zhongjie Regional Geological Surveying Team,Liaoning Bureau of Geology and Mineral Resources,Dalian.A DISCUSSION ON THE TIME OF FANHE GROUP AND YINTUN FORMATION OF NORTH LIAONING[J].Land & Resources,1991(4). |
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| Authors: | Yang Zhongjie Regional Geological Surveying Team Liaoning Bureau of Geology and Mineral Resources Dalian |
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| Abstract: | Different opinions about the time of Fanhe Group of North Liaoning,called Fanhe System by Saito,L.(1943),are exist,Most of geologists considered Fanhe Group is the middle-upper Proterozoic Era after the comparation with Jixian area,and Yintun Formation is Sinian Period,By means of analyses on geological histosy,tectonic setting, metamorphism,the interbed of marine volcanic rocks and isotopic ages,the time of Fanhe Group considered logically by the author,is Changchen Period and Yintun Formation is Jixian Period. |
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| Keywords: | North Liaoning Fanhe Group Changcheng Period Yintun Formation Jixian Period |
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