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Metamorphic history of staurolite-bearing schist from the Svecokarelides, near Heinävaara, eastern Finland

 

作者: D.S. Campbell,   P.J. Treloar,   D.R. Bowes,  

 

期刊: Geologiska Föreningen i Stockholm Förhandlingar  （Taylor Available online 1979）
卷期: Volume 101, issue 2  

页码: 105-118

 

ISSN:0016-786X

 

年代: 1979

 

DOI:10.1080/11035897909452566

 

出版商: Taylor & Francis Group

 

关键词: Metamorphism;structural analysis;polyphase deformation;folds;syntectonic processes;recrystallization;crystal growth;P-T conditions;mineral composition;porphyroblastic texture;staurolite-sillimanite schist;Proterozoic;Svecokarelides;Heinävaara;eastern

 

数据来源: Taylor

 

摘要:

Microstructural and microprobe studies of a staurolite-garnet-sillimanite-biotite schist indicate a peak of metamorphism syntectonic with a third phase of folding in a regional polyphase deformational history. Metamorphic conditions are calculated to be 675 ± 25°C and 500± 25 MPa (5.0± 0.25 kbar) with PH2O = 0.6 Ptot. The implications of such a late peak of metamorphism in this part of the Svecokarelides are assessed.

 

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