Field trip at Groix (Morbihan, France)

The Société Française de Minéralogie et Cristallographie (SFMC), is planning a two-day field trip in the Ile de Groix, southern Brittany, France (28th and 29th of March 2019), a world famous place for its beautiful garnet-bearing blueschists

Fiel trip at Groix

Besides the large amount of minerals that can be seen (but not collected - protected area!) along the excellent coastal exposures, this field trip is an occasion to gain information about metamorphic processes in past subduction zones. Topics of interest may be mineral composition, mineral assemblages and their evolution through time, derivation of P-T conditions, fluid-rock interactions at various scales (from grain to island-scale!), determination of the timing of high-pressure metamorphism using isotopic methods., ...

Therefore, this excursion is mainly intended for academic researchers, although not necessarily petrologists. Indeed, other fields relevant to Earth Sciences will also be covered during the excursion e.g. sedimentation and age of black shales, radiolarian cherts, manganiferous and other metal-deposits on the sea floor, deformation and rheology of rocks in subduction zones, exhumation mechanisms and rates, tectonic activity in response to Alpine-Pyrenean convergence, movement of sand grains in relation to changing climate along the southern coast of Brittany, ...

The SFMC is proud to organize this event, which is also supported by the CNRS laboratories, namely the Laboratoire de Planétologie et Géodynamique in Nantes (Benjamin Rondeau) and Géosciences Rennes (Michel Ballèvre).

Contact and inscriptions benjamin.rondeau@univ-nantes.fr, 02 51 12 52 70.