High-temperature metamorphism during extreme thinning of the continental crust: a reappraisal of the North Pyrenean passive paleomargin

Clerc, C.; Lahfid, A.; Monié, P.; Lagabrielle, Y.; Chopin, C.; Poujol, M.; Boulvais, P.; Ringenbach, J.-C.; Masini, E.; de St Blanquat, M.

doi:https://doi.org/10.5194/se-6-643-2015

Articles | Volume 6, issue 2

https://doi.org/10.5194/se-6-643-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/se-6-643-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 6, issue 2

Research article

|

08 Jun 2015

Research article |

| 08 Jun 2015

High-temperature metamorphism during extreme thinning of the continental crust: a reappraisal of the North Pyrenean passive paleomargin

C. Clerc, A. Lahfid, P. Monié, Y. Lagabrielle, C. Chopin, M. Poujol, P. Boulvais, J.-C. Ringenbach, E. Masini, and M. de St Blanquat

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Final revised paper (published on 08 Jun 2015)
Preprint (discussion started on 20 Feb 2015)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C81: 'Review comments to manuscript: High-temperature metamorphism during extreme thinning of the continental crust: a reappraisal of the north Pyrenean paleo-passive margin', Torgeir B. Andersen, 26 Feb 2015
- AC C302: 'Reply to Dr Andersen's comment', Camille Clerc, 29 Mar 2015
RC C127: 'Reviewers conments to manuscript', Reinoud Vissers, 03 Mar 2015
- AC C303: 'Reply to M. R. Vissers's comment', Camille Clerc, 29 Mar 2015

Short summary

The northern flank of the Pyrenean belt is an example of an inverted hot passive margin. We provide a data set of more than 100 peak-temperature estimates by RSCM and 18 new radiogenic ages from metamorphic and magmatic rocks from the North Pyrenean Zone. The results indicate a first-order control of the thermal gradient by the intensity of the Cretaceous crustal thinning. The highest grades of metamorphism are associated with the areas where mantle peridotites have been unroofed or exhumed.