2021, 40(4) 743-758 DOI:     ISSN: 1004-5589 CN: 22-1111/P
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Keywords
ＣｈａｎｇｎｉｎｇＭｅｎｇｌｉａｎｔｅｃｔｏｎｉｃｂｅｌｔ
Ｐｒｅｃａｍｂｒｉａｎｍｅｔａｓｅｄｉｍｅｎｔａｒｙｒｏｃｋｓｅｒｉｅｓ
ｄｅｔｒｉｔａｌｚｉｒｃｏｎ ｃｈｒｏｎｏｌｏｇｙ
ＴｅｔｈｙｓＯｃｅａｎ
ＥａｒｌｙＰａｌｅｏｚｏｉｃｏｒｏｇｅｎｙ
Authors
BAIXuerui
DONGYongsheng
CHENZhuo
JIARenyi
PubMed
Article by Baixuerui
Article by Dongyongsheng
Article by Chenzhuo
Article by Jiarenyi

Geochronology of “Precambrian” meta-sedimentary rocks in Changning-Menglian tectonic belt and its geological significanc

BAIXuerui,DONGYongsheng,CHENZhuo,JIARenyi

CollegeofEarthSciences,JilinUniversity,Changchun130061,China

Abstract：

ＴｈｅＰｒｅｃａｍｂｒｉａｎｍｅｔａｓｅｄｉｍｅｎｔａｒｙｒｏｃｋｓｅｒｉｅｓ，ｗｈｉｃｈｗｅｒｅｗｉｄｅｌｙｅｘｐｏｓｅｄｉｎｔｈｅＣｈａｎｇｎｉｎｇＭｅｎｇｌｉａｎｔｅｃｔｏｎｉｃｂｅｌｔｉｎｗｅｓｔｅｒｎＹｕｎｎａｎ，ｃｏｎｔｒｏｖｅｒｓｙｏｎｔｈｅａｇｅｓｏｆｔｈｅｓｅｒｏｃｋｓｓｅｒｉｏｕｓｌｙｒｅｓｔｒｉｃｔｓｔｈｅｕｎｄｅｒｓｔａｎｄｉｎｇｏｆｔｈｅＴｅｔｈｙｓｏｃｅａｎｅｖｏｌｕｔｉｏｎ．Ｉｎｔｈｉｓｐａｐｅｒ，ｔｈｅａｂｏｖｅｍｅｎｔｉｏｎｅｄｍｅｔａｓｅｄｉｍｅｎｔａｒｙｒｏｃｋｓｅｒｉｅｓｈａｓｂｅｅｎｔｅｓｔｅｄ ａｎｄａｎａｌｙｚｅｄｂｙｄｅｔｒｉｔａｌｚｉｒｃｏｎ．ＴｈｅｒｅｓｕｌｔｓｓｈｏｗｔｈａｔｔｈｅｙｏｕｎｇｅｓｔｐｅａｋａｇｅｓｏｆｄｅｔｒｉｔａｌｚｉｒｃｏｎｓｏｆｔｈｅＬａｎｃａｎｇ Ｇｒｏｕｐ，ＤａｍｅｎｇｌｏｎｇＧｒｏｕｐ，ＣｈｏｎｇｓｈａｎＧｒｏｕｐ，ＭｅｎｇｔｏｎｇＧｒｏｕｐａｎｄＸｉｍｅｎｇＧｒｏｕｐｉｎｃｌｕｄｅｄｉｎｔｈｅｍｅｔａｓｅｄｉｍｅｎｔａｒｙｒｏｃｋｓｅｒｉｅｓａｒｅ５１６Ｍａ，４４４Ｍａ，４４０Ｍａ，５９４Ｍａ，５０４Ｍａ，ｒｅｓｐｅｃｔｉｖｅｌｙ．Ａｓｓｏｃｉａｔｅｄｗｉｔｈｔｈｅｐｒｅｖｉｏｕｓｃｈｒｏｎｏｌｏｇｉｃａｌｄａｔａｏｆｔｈｅｖｏｌｃａｎｉｃｉｎｔｅｒｌａｙｅｒｓｉｎｅａｃｈｇｒｏｕｐａｎｄｍａｇｍａｔｉｃｉｎｔｒｕｓｉｏｎｓｗｉｔｈｉｎｔｈｅｓｅｒｉｅｓ，ａｎｄｔｈｅａｎｇｕｌａｒｕｎｃｏｎｆｏｒｍｉｔｙｂｅｔｗｅｅｎｔｈｅＬａｔｅＰａｌｅｏｚｏｉｃｓｅｑｕｅｎｃｅａｎｄｔｈｅｓｅｒｉｅｓ，ｔｈｉｓｐａｐｅｒｓｕｇｇｅｓｔｓｔｈａｔｔｈｅｐｒｏｔｏｌｉｔｈｏｆｔｈｅ ＰｒｅｃａｍｂｒｉａｎｍｅｔａｓｅｄｉｍｅｎｔａｒｙｒｏｃｋｓａｒｅｄｅｐｏｓｉｔｅｄｉｎｔｈｅＥａｒｌｙＰａｌｅｏｚｏｉｃ，ａｎｄｔｈｅｉｒｐｒｏｖｅｎａｎｃｅｓａｒｅｄｅｒｉｖｅｄｆｒｏｍｄｉｆｆｅｒｅｎｔｂｌｏｃｋｓｉｎｗｅｓｔｅｒｎＹｕｎｎａｎ，ｉｅ．ｔｈｅＬａｎｃａｎｇＧｒｏｕｐ，ＭｅｎｇｔｏｎｇＧｒｏｕｐａｎｄＸｉｍｅｎｇＧｒｏｕｐａｒｅｆｒｏｍｔｈｅＢａｏｓｈａｎＢｌｏｃｋ．ｔｈｅＤａｍｅｎｇｌｏｎｇＧｒｏｕｐａｎｄＣｈｏｎｇｓｈａｎＧｒｏｕｐａｒｅｆｒｏｍｔｈｅＳｉｍａｏＢｌｏｃｋ．ＡｌｏｎｇｗｉｔｈｔｈｅｓｕｂｄｕｃｔｉｏｎａｎｄｅｘｔｉｎｃｔｉｏｎｏｆｔｈｅｐｒｏｔｏＴｅｔｈｙｓＯｃｅａｎ，ｔｈｅｙｓｕｆｆｅｒｅｄｍｅｔａｍｏｒｐｈｏｓｅｄｄｅｆｏｒｍｅｄｔｒａｎｓｆｏｒｍａｔｉｏｎ．Ｃｏｎｓｅｑｕｅｎｔｌｙ，ｔｈｅａｕｔｈｏｒｓｓｕｐｐｏｓｅｔｈａｔｔｈｅｌａｔｅＥａｒｌｙＰａｌｅｏｚｏｉｃｏｒｏｇｅｎｙｉｓａｌｓｏｅｘｓｉｔｅｄｉｎｗｅｓｔｅｒｎＹｕｎｎａｎｗｈｉｃｈｉｓｒｅｌａｔｅｄｔｏｔｈｅ ｃｌｏｓｕｒｅｏｆｔｈｅｐｒｏｔｏＴｅｔｈｙｓＯｃｅａｎ

Keywords： ＣｈａｎｇｎｉｎｇＭｅｎｇｌｉａｎｔｅｃｔｏｎｉｃｂｅｌｔ   Ｐｒｅｃａｍｂｒｉａｎｍｅｔａｓｅｄｉｍｅｎｔａｒｙｒｏｃｋｓｅｒｉｅｓ   ｄｅｔｒｉｔａｌｚｉｒｃｏｎ ｃｈｒｏｎｏｌｏｇｙ   ＴｅｔｈｙｓＯｃｅａｎ   ＥａｒｌｙＰａｌｅｏｚｏｉｃｏｒｏｇｅｎｙ  
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