Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/97271
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: Contemporary stress orientations in the Faroe–Shetland region
Author: Holford, S.
Tassone, D.
Stoker, M.
Hillis, R.
Citation: Journal of the Geological Society, 2016; 173(1):142-152
Publisher: Geological Society of London
Issue Date: 2016
ISSN: 0016-7649
2041-479X
Statement of
Responsibility: 
Simon P. Holford, David R. Tassone, Martyn S. Stoker, Richard R. Hillis
Abstract: The Faroe–Shetland region of the NE Atlantic continental margin contains a number of complexly structured Mesozoic–Palaeogene-age rift basins, but in comparison with the contiguous British Isles and North Sea Basin, the state of crustal stress in the Faroe–Shetland region is poorly understood. The orientation of maximum horizontal compressional stress (σHmax) across most of NW Europe is roughly NW–SE, which is considered to be controlled by forces acting at the plate boundaries. We have determined 16 B–D quality σHmax orientations based on borehole breakouts interpreted in petroleum wells, and define three distinct stress provinces within the Faroe–Shetland region. Stress orientations in the NE are roughly NW–SE, consistent with the regional pattern of stresses in NW Europe and local neotectonic structural trends. However, contemporary stress orientations in the central and SW of the Faroe–Shetland region exhibit short-wavelength (distances <10–50 km) variation, with NE–SW, north–south and east–west orientations that are parallel or subparallel to underlying structural trends. This variation is interpreted in terms of stress deflections towards weak faults that downthrow the Mesozoic–Cenozoic sedimentary successions against basement highs. These local-scale sources are superimposed on a background roughly WNW–ESE σHmax orientation that is controlled by both plate boundary forces and regional-scale sources of stresses.
Rights: © 2015 The Author(s). Published by The Geological Society of London. All rights reserved.
RMID: 0030039923
DOI: 10.1144/jgs2015-048
Grant ID: http://purl.org/au-research/grants/arc/DP0879612
Appears in Collections:Australian School of Petroleum publications

Files in This Item:
File Description SizeFormat 
hdl_97271.pdfAccepted version1.56 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.