NDLI: Diachronic and different metamorphic evolution in the fossil Variscan lower crust of Calabria

Content Provider	Springer Nature Link
Author	Fornelli, A. Pascazio, A. Piccarreta, G.
Copyright Year	2011
Abstract	Different P–T–t paths and Variscan tectonic evolution have been described for the lower crust of Calabria. New data have been collected through retrieval technique and construction of pseudosections to control the validity of the previous data and to check the appropriate model to describe the tectono-thermal evolution of the lower crust of the Serre (southern Calabria). The time-period from ~350 and ~270 Ma has been considered to depict the evolution from Variscan crustal thickening to exhumation as happens in the peri-Mediterranean blocks of south European Variscides and consistently with the available geochronological data. It results that: (1) P-peak at 0.9 and 1.03 GPa at the top and bottom, respectively, was reached earlier than T-peak, (2) crustal thickening developed likely earlier than 325 Ma within the stability field of kyanite, in agreement with previous studies, up to the P-peak along a geothermal gradient of about 21–22°C km−1, (3) the T-peak of 700 and 880°C at the top and bottom, respectively, was reached in the stability field of sillimanite after a nearly isobaric heating and (4) Variscan exhumation occurred under increasing T/depth ratio and stopped 270–280 Ma ago. The P–T paths for the upper and lower portions of the section, qualitatively comparable to the numerical simulation, reflect different styles of exhumation, cooling and, according to the available geochronological data, diachronic evolution.
Starting Page	1191
Ending Page	1207
Page Count	17
File Format	PDF
ISSN	14373254
Journal	International Journal of Earth Sciences
Volume Number	101
Issue Number	5
e-ISSN	14373262
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-10-19
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Variscan lower crust Pseudosection P–T–t path Cooling-exhumation rates Calabria Geophysics/Geodesy Geology
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences

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Erratum to: Diachronic and different metamorphic evolution in the fossil Variscan lower crust of Calabria

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Diachronic and different metamorphic evolution in the fossil Variscan lower crust of Calabria

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