Comptes Rendus Géoscience

Julie Tugend

Geoffroy Mohn

Thibault Duretz

Benoit Petri

Laetitia Le Pourhiet

Extension of continental lithosphere in rifted margins: a review of thinning mechanisms

Paul Perron

Laetitia Le Pourhiet

Anthony Jourdon

Tristan Cornu

Claude Gout

Toward the calibration of 2D thermomechanical simulations of magma poor passive continental margins: method, validation and case example

Jean-Marc Lardeaux

Metamorphism and linked deformation in understanding tectonic processes at varied scales

Laurent Strohmenger

Lila Collet

Vazken Andréassian

Lola Corre

Fabienne Rousset

Guillaume Thirel

Köppen–Geiger climate classification across France based on an ensemble of high-resolution climate projections

Amin Kahrizi

Matthias Delescluse

Nicolas Chamot-Rooke

Manuel Pubellier

Anne Bécel

Donna Shillington

Mladen Nedimović

Cédric Bulois

Extensional forearc structures at the transition from Alaska to Aleutian Subduction Zone: slip partitioning, terranes and large earthquakes

Nicolas Dall’Asta

Yoann Denèle

Vincent Regard

Anne Frayssignes

Guilhem Hoareau

Sylvie Leroy

Thibaut Pires

Analogue model of rift linkage and inversion with application to the Western Alps

Julie Ngwal’ghoubou Ikouanga

Laurie Reisberg

Anne-Catherine  Pierson-Wickmann

Anna El Khoury

Claude Fontaine

Abderrazak El Albani

The first application of Re–Os dating on Paleoproterozoic Francevillian sediments (Gabon)

Anne Paul

Helle A. Pedersen

Thomas Bodin

Emanuel Kästle

Dorian Soergel

Chloé Alder

Yang Lu

Ahmed Nouibat

Methodological advances in seismic noise imaging of the Alpine area

Laurent Stehly

Estelle Delouche

Lisa Tomasetto

Pratul Ranjan

Dynamic of seismic noise sources in the Mediterranean Sea: implication for monitoring using noise correlations

Aude Gébelin

Christophe Matonti

Christophe Larroque

Patrick Carr

Jean-Paul Ampuero

Supplementary material 
 
First in situ calcite U-Pb dating revealing the past episodes of the 2019 Le Teil Earthquake (France) 
Première datation U-Pb in situ sur ciments de calcite révélant les épisodes antérieurs au séisme du 
Teil de 2019 (France) 
 
1Aude Gébelin*, 2Christophe Matonti, 2, 3 Christophe Larroque, 1Patrick Carr and 2Jean-Paul Ampuero 
1 Université de Lorraine, UMR CNRS 7359, GeoRessources, F-54506 Vandœuvre-lès-Nancy, France 
2 Géoazur, Univ. Côte d’Azur, CNRS, Observatoire de la Côte d’Azur, IRD, Valbonne, France 
3 Université de Reims Champagne-Ardenne, GEGENA UR3795, Reims, France 
 
SMFigure 1: Location and detailed information on the first conducted exploratory drilling where the 11 
November 2019 Mw 4.9 Le Teil earthquake occurred. A. Location of the exploratory drilling on a map 
extracted from Google Earth (44.5306°N-04.6690°E), B. photograph showing both, the location of the 
surface rupture and the exploratory drilling 10 m far away from it, and C. Stratigraphic column 
highlighting the lithologies encountered by the borehole as well as the location of our key and studied 
samples. 
 
SMFigure 2: Photographs of our representative studied samples EC1 (21 m), EC2 (22 m), EC3 (22,20 m), 
EC4 (22,50 m) and EC5 (24 m) homogeneously distributed over the  3 meters of core drilling. The 
diameter of each core sample is 102 mm. 
 
SMFigure 3: A. Microphotograph of sheared stylolithes in samle EC4A. B. Microphotograph showing 
pervasive pressure solution along with concavo-convex clasts contacts in breccia 2. C. Scan of the entire 
EC5A thin-section displaying the sheared veins, partially “eaten” by pressure solution and forming an en-
echelon pattern. D. Scan of the entire EC1B thin-section illustrating the 2 phases of brecciation 
(Br1:breccia 1; BR2:breccia 2), along with the breccia 2 material is injected in newly opened fractures 
(arrows). Inset: close-up of the compaction/shear bands between the clasts of Breccia 2. 
 
SMFigure 4: A and B. X-ray elements maps for S, Fe, and As of pyrite from EC2 (see location in C). C. BSE 
SEM large scale image of pyrite crystals from which X-ray elements A and B maps have been done. Also, 
note in the B inset the location where the compositional profile shown in D has been performed. D. 
Compositional profiles showing that pyrites from the EC2 sample are heterogeneous and zoned. 
Quantitative analysess were performed with a CAMECA SX100 EPMA equipped with five WDS 
spectrometers, GeoRessources analytical platform (See SMTable 2 for analytical setting). 
 
SMFigure 5: A. Microphotograph in reflected light mode of the EC2 sample showing pyrite crystallization 
(light color) on top of the dog-tooth calcite crystals (dark color) (see location in inset (small blue 
rectangle) and Figure 3D). Note that pyrite crystals are zoned at their tips. Numbers indicate locations 
where quantitative analyses have been performed on pyrite crystals (see results in SMTable 2). B. X-ray 
elements large scale maps for S, Fe, and As of pyrite located in A (pink rectangle) supporting the 
presence of zoning observed using the optical microscope (A). 
 
SMTable 1: This table includes 1. the Summary of ages, 2. Table SX: The key instrument parameters, 3. 
Table SY: The Duff Brown Tank limestone (U-Pb age of 64.07 ± 0.67; Hill et al., 2016) and the B6 calcite 
breccia (U-Pb age of 43.0 ± 1.0 Ma; Pagel et al., 2018) standarts, and 4. Table SZ: Detailled results. 
 
SMTable 2: Analytical setting of quantitative analyses and results from 20 to 28 (see location on 
SMFigure 3C and associated compositional profiles in SMFigure 3D) and from 1 to 13 (see location in 
SMFigure 5A). 
 
 
 
 
 
 
 
 
SM fig1 
 
 
SM Fig2 
 
 
SM Fig3 
 
 
 
 
SM Fig 4 
 
 
SM Fig 5 
 


First in situ calcite U–Pb dating revealing the past episodes of the 2019 Le Teil Earthquake (France)

Not a member yet