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Sveconorwegian palaeomagnetism in hyperite dolerites and syenites from Scania, Sweden

 

作者: Göran Bylund,  

 

期刊: Geologiska Föreningen i Stockholm Förhandlingar  (Taylor Available online 1981)
卷期: Volume 103, issue 2  

页码: 173-182

 

ISSN:0016-786X

 

年代: 1981

 

DOI:10.1080/11035898109454516

 

出版商: Taylor & Francis Group

 

关键词: Palaeomagnetism;thermomagnetism;remagnetization;demagnetization;pole positions;polar wandering;intrusions;hyperite dolerite;syenite;Sveconorwegian;Proterozoic;Protogine Zone;Tornquist Lineament;Fennoscandian Border Zone;Skåne;southern Sweden;N5533 N5

 

数据来源: Taylor

 

摘要:

Proterozoic hyperite dolerites and syenites from the Scanian part of the Protogine Zone (Sveconorwegian Front) have the same characteristic remanence direction after alternating field demagnetization. The direction isD= 297.2°,I= −83.8°, α95= 3.7°,k= 114.6, which gives a palaeopole at 49°S, 211°E,dp = 7.1°,dm= 8.3°. The pole position, and a majority of K-Ar datings on the rocks studied, implies that they became remagnetized during the Sveconorwegian regeneration. This new remanence was not affected by a later intrusion of a dolerite swarm in the intersecting Fennoscandian Border zone. A tentative apparent polar wander path for the Sveconorwegian is presented.

 

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