Palaeomagnetism and magnetostratigraphy of the Permian and Triassic of Spitsbergen: a review of progress and challenges

Polar research

Mark W. Hounslow¹  Jerzy Nawrocki² 

[1] Centre for Environmental Magnetism and Palaeomagnetism, Geography Department, Lancaster Environment Centre, Lancaster University, Bailrigg, Lancaster, LA1 4YB, UKCorrespondence;Palaeomagnetic Laboratory, Polish Geological Institute, Rakowiecka 4, PL-00-975 Warsaw, Poland

关键词: Permian;    Triassic;    remagnetization;    palaeomagnetism;    Svalbard;    magnetostratigraphy;   

DOI  :  10.1111/j.1751-8369.2008.00075.x

学科分类：自然科学（综合）

来源: Co-Action Publishing

【 摘 要 】

Permian and Triassic sediments from Svalbard provide a testing ground for evaluating concepts about the polarity and configuration of the geomagnetic field during the Palaeozoic–Mesozoic transition. This review examines existing palaeomagnetic and magnetostratigraphic data, and also re-examines the issue of partial remagnetization of these sediments. Permian and Triassic palaeomagnetic poles from Spitsbergen demonstrate a close similarity to the stable Europe apparent polar wander path. Magnetostratigraphy from the Gipsdalen and Tempelfjorden groups demonstrates the dominance of reverse polarity (the Permo-Carboniferous Reverse Superchron), with evidence for three normal magnetozones of short duration, one of which may provide a useful marker near the base of the Permian. The other two normal magnetozones in the middle and lower parts of the Kapp Starostin Formation are most likely to represent equivalent magnetozones in the Wordian and Capitanian (mid- Permian). Magnetostratigraphy of the Lower Triassic ...

【 授权许可】

CC BY-NC