Some issues related to the Svalbardian tectonic event (Ellesmerian Orogeny) in Svalbard

Svalbard has long been thought to represent the easternmost realm of the Ellesmerian Orogeny in the late Devonian or early Mississippian (Svalbardian tectonic event). Several authors do not agree and present alternative interpretations of the observed structures in older and more recent articles. Th...

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Bibliographic Details
Published in:Polar Research
Main Authors: Dallmann, Winfried Kurt, Piepjohn, Karsten
Format: Article in Journal/Newspaper
Language:English
Published: Norwegian Polar Institute 2024
Subjects:
Geology of Svalbard
Devonian
angular unconformity
convergent deformation
palynomorph ages
Adriabukta Formation
Adriabukta
Svalbard
Polar Research
Spitsbergen
Online Access:https://polarresearch.net/index.php/polar/article/view/10291
https://doi.org/10.33265/polar.v43.10291
Description
Summary:Svalbard has long been thought to represent the easternmost realm of the Ellesmerian Orogeny in the late Devonian or early Mississippian (Svalbardian tectonic event). Several authors do not agree and present alternative interpretations of the observed structures in older and more recent articles. This article discusses a number of issues that, in our opinion, are not sufficiently considered in those works, but which are essential for the understanding of the Svalbardian tectonic event: (1) the possibility of re-deposited palynomorphs in the discussion of the deformational ages, (2) the age and structural setting of the crucial Adriabukta Formation in southern Spitsbergen, and (3) the presence and nature of the Svalbardian angular unconformity in central and southern Spitsbergen.

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