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Rb-Sr and K-Ar age determinations of the Proterozoic Olden granite, central Caledonides, Jämtland, Sweden

 

作者: Inger Klingspor,   Björn Troëng,  

 

期刊: Geologiska Föreningen i Stockholm Förhandlingar  （Taylor Available online 1980）
卷期: Volume 102, issue 4  

页码: 515-522

 

ISSN:0016-786X

 

年代: 1980

 

DOI:10.1080/11035898009454504

 

出版商: Taylor & Francis Group

 

关键词: Rb-Sr;K-Ar;absolute age;dates;whole rock;mineral age;reference line;cataclasis;Olden granite;Olden Window;Proterozoic;Stora Stensjön;western Jämtland;west central Sweden;N6355 N6404 E1356 E1335

 

数据来源: Taylor

 

摘要:

The Olden granite is a highly differentiated Proterozoic granite occurring in a basement window within the Caledonian orogenic belt. The granite is extensively affected by the Caledonian orogeny. A minimum age of 1500 Ma and an initial87Sr/86Sr ratio of 0.7134 ± 0.0012 have been established by a Rb-Sr whole-rock age determination. Rb-Sr mineral determinations and K-Ar determinations reflect a considerable Caledonian influence.

 

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