2020
DOI: 10.1016/j.precamres.2020.105670
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How does orogenic crust deform? Evidence of crustal-scale competent behaviour within the partially molten middle crust during orogenic compression

Abstract: This is a repository copy of How does orogenic crust deform? Evidence of crustal-scale competent behaviour within the partially molten middle crust during orogenic compression.

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Cited by 9 publications
(14 citation statements)
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References 94 publications
(160 reference statements)
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“…
The understanding of how convergence is accommodated by the lithosphere remains an important issue in tectonics, for both recent and old orogenic belts (e.g., Conand et al, 2020;Torvela & Kurhila, 2020). Mass transfer within a crust subjected to convergence can be variably accommodated, depending on the rheological behavior of the colliding lithospheres (e.g., Brun, 2002;Davy, 1986).
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mentioning
confidence: 99%
“…
The understanding of how convergence is accommodated by the lithosphere remains an important issue in tectonics, for both recent and old orogenic belts (e.g., Conand et al, 2020;Torvela & Kurhila, 2020). Mass transfer within a crust subjected to convergence can be variably accommodated, depending on the rheological behavior of the colliding lithospheres (e.g., Brun, 2002;Davy, 1986).
…”
mentioning
confidence: 99%
“…This phase (c. 1850−1800 Ma) refolded the F1 flat-lying crustal fabrics and recumbent folds into upright folds with E-W striking fold axes (F2; Fig. 2c; Torvela & Kurhila 2020). Particularly from c. 1825 Ma onwards, the deformation was synchronous with wide-spread low-P, high-T anatectic granite magmatism and migmatisation, metamorphism and formation of steep, local-to crustal-scale, strike-slip shear zones in the Svecofennian domain (e.g.…”
Section: Geological Settingmentioning
confidence: 94%
“…4a; Nironen & Kurhila 2008); and local extensional structures such as boudinaged pegmatites (Skyttä & Mänttäri 2008). However, Kurhila and Torvela (2020) show that despite voluminous partial melts in the crust, the convergence and crustal thickening was very much active during this age bracket, based e.g. on the fact that the 1.83 Ga Perniö granite is folded showing ~20% shortening after the full or partial solidification of the granite sheet.…”
Section: Geological Settingmentioning
confidence: 97%
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