The recognition of transient compressional fault slow−slip along the northern shore of Hornsund Fjord, Sw Spitsbergen, Svalbard

This paper presents the results of direct 3−D fault displacement monitoring along the northern shore of Hornsund Fjord, SW Spitsbergen, Svalbard. The fault displacements have been recorded using three permanently installed optical−mechanical crack gauges since 2009. The monitoring data from all thre...

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Bibliographic Details
Published in:Polish Polar Research
Main Authors: Stemberk Josef, Briestenský Miloš, Cacoń Stefan
Format: Article in Journal/Newspaper
Language:English
Published: Polish Academy of Sciences 2015
Subjects:
Arctic
Svalbard
Hornsund
3−D fault displacement monitoring
transient slow fault slip
Geology
QE1-996.5
Polar Research
Spitsbergen
Online Access:https://doi.org/10.1515/popore-2015-0007
https://doaj.org/article/b09df781c87f4822906ba420fa7eaa36
Description
Summary:This paper presents the results of direct 3−D fault displacement monitoring along the northern shore of Hornsund Fjord, SW Spitsbergen, Svalbard. The fault displacements have been recorded using three permanently installed optical−mechanical crack gauges since 2009. The monitoring data from all three sites provided evidence for a remarkable slip event that lasted from September 2011 to May 2012. The cause is discussed in some detail with consideration given to both exogenic (temperature changes, surface processes) and endogenic processes (isostatic rebound and regional seismicity). It is proposed that transient fault slips recorded had a tectonic origin and were caused by approximately W−E oriented compression corresponding to regional compression in the Svalbard area.

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