Caroline Lotout

OrcidResearch GateScholar
Fonction : Post-Doctorante CRPG & Memorial University of Newfoundland
Domaine(s) de recherche :

Pétrochronologie, Métamorphisme

Thème(s) :
Mots clés :
  • Eclogite
  • Granulite
  • P-T estimates
  • Lu-Hf
  • Sm-Nd
  • U-Pb
Coordonnées :

CRPG UMR 7358 CNRS-UL
15 rue Notre Dame des Pauvres
54500 Vandœuvre les Nancy – France

Email : caroline.lotout@univ-lorraine.fr
Bureau : 404

I am using multidisciplinary approaches to 1) unravel the P-T-t history of high-grade metamorphic rocks, 2) fingerprint mineral reaction and 3) better understand the isotopic and trace element record of petrochronometers during metamorphism. Current natural laboratories are the Variscan Orogeny & the Grenville Orogeny

2020.09-2023.11 Marie Sklodowska Curie International Postdoctoral Fellow, CRPG – CNRS, Nancy (France)

  • 2020.12-2022.11 – Honorary Postdoctoral Fellow, Memorial University of Newfoundland, St John’s (Canada)
  • 2021.10 – 2021.11 – Visiting Scholar, Radiogenic Isotope & Geochronology Lab., Washington State University, Pullman (USA)

2018.09-2020.08 – Lecturer and Research Associate, LPG – Le Mans, UMR 7112, Le Mans Univ. (France)

2014.09-2017.11 – Ph.D. in Earth Sciences, Géosciences Rennes, UMR 6118, Univ. Rennes 1 (France)

  • 2016.10-2016.12 – Visiting Graduate Student, Institute of Geological Sciences, Kraków (Poland)
  • 2015.08-2015.09 – Visiting Graduate Student, Czech Geological Survey, Praha (Czech Republic)

CHRONOTEC – “Conditions and duration of High tempeRature metamOrphism in large hot orogeNs assessed through petrochronolOgy : insights from Grenville TECtonics”

Funding agency : Horizon 2020, Marie SKlodowska Curie Action, Individual Global Fellowship, call 2019.

Overview

Deciphering duration and conditions of metamorphism in orogenic systems is crucial to understand large-scale tectonic processes. In the last decades, the development of thermodynamic modeling and instrumental advances in elemental and isotopic analysis have open new avenues to unravel the Pressure-Temperature-time paths of rocks, to assess the rates and duration of large-scale orogenic processes. Orogenic roots in Large Hot Orogens (LHOs) that can attain and maintain temperatures higher than 800°C over several tens of million years still challenge our ability to decode the timing of events, and our understanding of tectonic processes and crustal evolution.

The CHRONOTEC project will link the chronometers garnet and zircon through their isotopic and elemental record, combined to a detailed petrological investigation, including phase diagram modeling. This approach will be systematically used on selected mafic granulites from distinct crustal levels of the Central Grenville Province in Canada, thus bringing a complete portfolio of new fundamental results from natural samples to assess the link between zircon and garnet in high-T mafic rocks. Integration of the results will provide an unparalleled framework to assess the metamorphic evolution of the central Grenville province, and by comparison to other LHOs, will refine our understanding of large-scale high-T orogenic processes.

Main Collaborators

Zircon petrogenesis during high-grade metamorphism: new insights from Trace Elements and U-Pb, O and Hf isotopes

Funding agency: INSU-CNRS TelluS, call 2020

Main Collaborators

Twitter: https://twitter.com/CaroGeology
CHRONOTEC Facebook page: https://www.facebook.com/C-H-R-O-N-O-T-E-C-581257122556628

P. Pitra, M. Poujol, J. Van Den Driessche, E. Bretagne#, C. Lotout, N. Cogné (2021). Late variscan (315Ma) subduction or deceiving zircon REE patterns and U-Pb dates from migmatite-hosted eclogites (Montagne Noire, France), Journal of Metamorphic Geology. doi: 10.1111/JMG.12609

C. Lotout, M. Poujol, P. Pitra, R. Anczkiewicz, J. Van Den Driessche (2020). From burial to exhumation: evolution of eclogitic terranes through multimethod petrochronology, Lévézou Massif (French Massif Central), Journal of Petrology. doi: 10.1093/petrology/egaa046

C. Lotout, P. Pitra, M. Poujol, R. Anczkiewicz, J. Van Den Driessche (2018). Age and duration of Variscan high-pressure metamorphism in the French Massif Central: a multimethod geochronological study from the Najac Massif, Lithos, 308-309:381-394, doi: 10.1016/j.lithos.2018.03.022 

C. Lotout, P. Pitra, M. Poujol, J. Van Den Driessche (2017). Ordovician magmatism in the Lévézou massif (French Massif Central): tectonic and geodynamic implications, International Journal of Earth Sciences, 106:501-515, doi: 10.1007/s00531-016-1387-z  

C. Lotout (2017). Age, duration and record of high-pressure metamorphism in the French Massif Central, Variscan belt. PhD thesis. 374pp.