Description / Table of Contents:
The widespread extension occured within the Variscan orogen and its northern foreland during late Carboniferous to Early Permian times. This was associated with magnetism and with a fundamental change, at the Westphalian-Stephanian boundary, in the regional stress field, coincident with the termination of orogenic activity and onset of dextral translation between North Africa and Europe. Rifting propagated across basement terranes with different ages and thermal histories. Most of the roft basins developed on relatively thin lithosphere; however, the highly magnetic Oslo graben initiated within the edge of a craton. Early stephanian regional uplift is contemporaneous with the onset of magmatism; inviting speculation that it might have been induced by a thermal anomaly within the upper mantle. The contributions to this volume suggest that the geodynamic setting in which magmatism occurred was complex, involving wrench tectonics, slab detachment, and delimination or thermal erosion of the base of the lithosphere.
Pages:
Online-Ressource (VII, 498 Seiten)
ISBN:
1862391521
URL:
http://sp.lyellcollection.org/content/223/1.toc
Language:
English
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