Sylvie Costa, Patrice Rey; Lower crustal rejuvenation and growth during post-thickening collapse: Insights from a crustal cross section through a Variscan metamorphic core complex. Geology ; 23 (10): 905–908. doi: https://doi.org/10.1130/0091-7613(1995)023<0905:LCRAGD>2.3.CO;2
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The Variscan lower crust of Europe acquired its main features (seismic layering, intrusion of mantle-derived magmas, granulite-grade metamorphism) when the upper crust underwent post-thickening extension through gravitational collapse. We suggest that post-thickening collapse is a geodynamic process that contributes to the growth and differentiation of continental lithosphere in collapsed mountain belts.