The Rocroi inlier, highlight of grey areas in its geological story using modern tools (U-Pb on Zircon with LA-ICP-MS and Raman Spectroscopy of Carbonaceous Material)
[en] The Rocroi inlier, part of the Ardenne Allochton, is composed of alternation of quartzite and metapelite, Cambrian to Ordovician in age. We update its story by performing 1) U-Pb dating on zircon with LA-ICP-MS; 2) Raman Spectroscopy on Carbonaceous Materiel (RSCM) on metasedimentary rocks. With these results we can propose an eo-Variscan scenario: 1) Back-arc basin opening (Pridoli), associated with a magmatic event; 2) At the paroxysm of subsidence (Mid. Devonian) the thickness of the crust allow the heating of the sediments which led to the metamorphic pick of temperature recorded by rocks; 3) Beginning of the Variscan orogeny at ca. 330Ma.
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
Cobert, Corentin ; Université de Mons - UMONS > Faculté Polytechnique > Service de Géologie fondamentale et appliquée
Baele, Jean-Marc ; Université de Mons - UMONS > Faculté Polytechnique > Service de Géologie fondamentale et appliquée
Lahfid, Abdeltif; BRGM
Language :
English
Title :
The Rocroi inlier, highlight of grey areas in its geological story using modern tools (U-Pb on Zircon with LA-ICP-MS and Raman Spectroscopy of Carbonaceous Material)
Publication date :
06 September 2022
Event name :
Mardi des Chercheurs 2022
Event place :
Mons, Belgium
Event date :
06/09/2022
Audience :
International
Research unit :
F401 - Géologie fondamentale et appliquée
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
