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GEOREF RECORD

Two-scale gravitational collapse in the Amazon Fan; a coupled system of gravity tectonics and mass-transport processes

Antonio Tadeu Reis, R. Perovano, C. G. Silva, B. C. Vendeville, E. Araujo, C. Gorini and V. Oliveira
Two-scale gravitational collapse in the Amazon Fan; a coupled system of gravity tectonics and mass-transport processes (in Gravitational collapse of continental margins; products and processes, Robert W. H. Butler and J. P. Turner)
Journal of the Geological Society of London (May 2010) 167 (3): 593-604

Abstract

Gravity tectonics affects the entire marine sedimentary sequence of the Foz do Amazonas basin, including the topmost Amazon Fan. During the various stages of the margin's evolution, the sedimentary loading and bathymetric slope induced the formation of a linked extensional-compressional system in which gravitational fold-and-thrust belts form significant structural features on the continental slope. Seismic analysis carried out in this study shows that sea-floor relief created along these thrust belts can trigger recurrent mass-transport deposits in the upper-middle Amazon Fan, suggesting a long-lasting linkage between gravity tectonics and mass-transport processes throughout the sedimentary evolution of the Amazon Fan.


ISSN: 0016-7649
EISSN: 2041-479X
Coden: JGSLAS
Serial Title: Journal of the Geological Society of London
Serial Volume: 167
Serial Issue: 3
Title: Two-scale gravitational collapse in the Amazon Fan; a coupled system of gravity tectonics and mass-transport processes
Title: Gravitational collapse of continental margins; products and processes
Author(s): Reis, Antonio TadeuPerovano, R.Silva, C. G.Vendeville, B. C.Araujo, E.Gorini, C.Oliveira, V.
Author(s): Butler, Robert W. H.
Author(s): Turner, J. P.
Affiliation: Universidade do Estado do Rio de Janeiro, Faculdade de Oceanografia, Rio de Janeiro, Brazil
Affiliation: University of Aberdeen, Geology and Petroleum Geology, Aberdeen, United Kingdom
Pages: 593-604
Published: 201005
Text Language: English
Publisher: Geological Society of London, London, United Kingdom
References: 30
Accession Number: 2010-044070
Categories: Structural geologyOceanography
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Supplementary material available at http://www.geolsoc.org.uk/SUP18393
Illustration Description: illus. incl. sects., geol. sketch maps
N20°00'00" - N50°00'00", W50°00'00" - W47°00'00"
Secondary Affiliation: BG Group, GBR, United KingdomUniversidade Federal Fluminense, BRA, BrazilUniversite de Lille I, FRA, FranceUniversite de Paris VI-Pierre et Marie Curie, FRA, France
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: 201024
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