Avalonia, get bent! Paleomagnetism from SW Iberia confirms the Greater Cantabrian Orocline

This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.1016/j.gsf.2020.07.013. This is version 7 of this Preprint.

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Authors

Bruno Daniel Leite Mendes, Daniel Pastor-Galán , Mark J. Dekkers, Wout Krijgsman

Abstract

The amalgamation of Pangea formed the contorted Variscan-Alleghanian orogen, suturing
Gondwana and Laurussia during the Carboniferous. From all swirls of this orogen, a double
curve stands out in Iberia, the coupled Cantabrian Orocline and Central Iberian Curve. The
Cantabrian Orocline formed subsequent to Variscan orogeny (ca. 315-295 Ma). The
mechanisms of formation for this orocline are disputed, with an Avalonian (Laurussia)
indenter of south-westernmost Iberia; and a change in the stress field that buckled the
orogen, as the most prominent. In contrast, the geometry and kinematics of the Central
Iberian curve are lar...  more

DOI

https://doi.org/10.31223/osf.io/evwc6

Subjects

Earth Sciences, Physical Sciences and Mathematics, Tectonics and Structure

Keywords

paleomagnetism, Central Iberian Curve, Greater Cantabrian Orocline, Pangea, Variscan orogeny

Dates

Published: 2020-01-29 06:32

Last Updated: 2020-02-10 00:01

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License

CC BY Attribution 4.0 International