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Evolution of experimental thrust wedges accreted from along-strike tapered, silicone-floored multilayers

F. Storti, R. Soto Marin, F. Rossetti and A. M. Casas Sainz
Evolution of experimental thrust wedges accreted from along-strike tapered, silicone-floored multilayers
Journal of the Geological Society of London (January 2007) 164 (1): 73-85

Abstract

The possible effect of pre-deformational, along-strike sedimentary tapers on the structural architecture of thrust wedges accreted above viscous materials has been commonly underestimated or neglected. We illustrate results of an experimental programme specifically designed to study the impact of this parameter on thrust wedge evolution using sandbox analogue modelling. Two series of experiments were performed: the first series was designed to investigate the sensitivity of wedge growth to the along-strike sedimentary taper variability; the second was designed to investigate the sensitivity of a growing along-strike tapered wedge to the convergence rate. Our experimental results indicate that even gentle pre-deformational along-strike thickness variations in foredeep clastic sequences overlying viscous materials, such as evaporites or overpressured shales, can produce dramatic changes in the first-order structural architecture and kinematic evolution of accreting thrust wedges.


ISSN: 0016-7649
EISSN: 2041-479X
Coden: JGSLAS
Serial Title: Journal of the Geological Society of London
Serial Volume: 164
Serial Issue: 1
Title: Evolution of experimental thrust wedges accreted from along-strike tapered, silicone-floored multilayers
Affiliation: Universita "Roma Tre", Dipartimento di Scienze Geologiche, Rome, Italy
Pages: 73-85
Published: 200701
Text Language: English
Publisher: Geological Society of London, London, United Kingdom
References: 78
Accession Number: 2007-008435
Categories: Structural geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. block diag., 2 tables, sects.
Secondary Affiliation: Universidad de Burgos, ESP, SpainUniversidad de Zaragoza, ESP, Spain
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 200704
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