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Far-field effects of Appalachian Orogenesis; a view from the craton

Nicolas Pinet
Far-field effects of Appalachian Orogenesis; a view from the craton
Geology (Boulder) (February 2016) 44 (2): 83-86


The sedimentary cover of the North American craton preserved little evidence of the Paleozoic tectonic events that shaped the Appalachian orogen on its eastern side. A notable exception is the NNW-trending Hudson Bay central high, which corresponds to a normal-fault array extending for a minimum length of 500 km. A working hypothesis is proposed in which stresses applied to the continental margin during the Silurian-earliest Devonian Salinian orogeny were transmitted over a distance of >1400 km in the continental interior, where they induced the normal-fault reactivation of older structural discontinuities. The shutdown of tectonic activity along the Hudson Bay central high during the latest Early Devonian to earliest Middle Devonian is interpreted as resulting from a change in the direction of plate convergence during the Acadian orogeny.

ISSN: 0091-7613
EISSN: 1943-2682
Serial Title: Geology (Boulder)
Serial Volume: 44
Serial Issue: 2
Title: Far-field effects of Appalachian Orogenesis; a view from the craton
Author(s): Pinet, Nicolas
Affiliation: Natural Resources Canada, Geological Survey of Canada, Quebec City, QC, Canada
Pages: 83-86
Published: 201602
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 24
Accession Number: 2016-025663
Categories: Solid-earth geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sect., geol. sketch map
N43°00'00" - N79°00'00", W124°00'00" - W56°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 201613
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