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Testing the Extensional Detachment Paradigm: A Borehole Observatory in the Sevier Desert Basin

Christie-Blick, Nicholas and Anders, Mark H. and Manatschal, Gianreto and Wernicke, Brian P. (2009) Testing the Extensional Detachment Paradigm: A Borehole Observatory in the Sevier Desert Basin. Scientific Drilling, 8 . pp. 57-59. ISSN 1816-3459. https://resolver.caltech.edu/CaltechAUTHORS:20180427-155654592

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Abstract

Low-angle normal faults or detachments are widely regarded as playing an important role in crustal extension and the development of rifted continental margins (Manatschal et al., 2007). However, no consensus exists on how to resolve the mechanical paradox implied by the gentle dips of these faults and by the general absence of evidence for associated seismicity (Sibson, 1985; Wernicke, 1995; Axen, 2004). As part of a new initiative to rationalize geological and geophysical evidence and our theoretical understanding of how rocks deform, a group of forty-seven scientists and drilling experts from five countries met for four days on 15–18 July 2008 to discuss the present status of the paradox and a borehole-based strategy for resolving it. The workshop was held at two venues in Utah (the Utah Department of Natural Resources in Salt Lake City, and Solitude Mountain Resort in the adjacent Wasatch Range), with a one-day field trip to the Sevier Desert basin of west-central Utah (Figs. 1, 2) to examine the general setting of potential drill sites and the footwall geology of the Sevier Desert detachment (Canyon Range).


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.2204/iodp.sd.8.09.2009DOIArticle
ORCID:
AuthorORCID
Wernicke, Brian P.0000-0002-7659-8358
Additional Information:© Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. We thank ICDP for sponsoring the workshop, the Utah Geological Survey for logistical assistance, and all of the participants for stimulating discussions.
Record Number:CaltechAUTHORS:20180427-155654592
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180427-155654592
Official Citation:Christie-Blick, N., Anders, M. H., Manatschal, G., and Wernicke, B. P.: Testing the Extensional Detachment Paradigm: A Borehole Observatory in the Sevier Desert Basin, Sci. Dril., 8, 57-59, https://doi.org/10.2204/iodp.sd.8.09.2009, 2009.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86102
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:27 Apr 2018 23:13
Last Modified:03 Oct 2019 19:39

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