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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