Quantitative X-ray mapping of brittle shear zones precursors (2020)

Data creators : Thomas Leydier [1] [2], Philippe Goncalves [1] [2], Julie Albaric [1] [2]
Data collector : Pierre Lanari [3]
[1] : Laboratoire Chrono-environnement (UMR 6249) (Université de Franche-Comté)
[2] : Observatoire des Sciences de l'Univers - Terre, Homme, Environnement, Temps, Astronomie (UAR 3245) (Université de Franche-Comté)
[3] : Institut für Geologie
Description :
Objective : characterize the chemical zonings in plagioclase and garnet related to fluid-rock interactions within a shear zone precursor
Disciplines :
geochemistry & geophysics (sciences of the universe), geology (sciences of the universe), mineralogy (sciences of the universe)
Access details :
To access the data, please contact the scientific data manager.

General metadata

Data acquisition date : May 2017
Data acquisition methods :
  • Observational data :
    High‐resolution X‐ray maps have been acquired using a JEOL‐8200 microprob. Operating conditions were 15 keV, 100 nA, with a pixel resolution of 1 µm and a dwell‐time of 100 ms/pixel. A standardization step is required in order to convert measured X‐ray intensities (photon counts per pixel) into oxide weight per cent concentrations. For each phase, an average of 10 spot analyses were acquired along several transects, at high angle from the grain boundaries, to take into account the mineral heterogeneities. These spot analyses were used as internal standards to obtain the quantified maps (element concentration or phase component proportion), using the software solution XMapTools 2.4.3.
Update periodicity : no update
Language : English (eng)
Formats : image/bmp, image/tiff, text/cpr, text/ctf
Audience : University: master, Research


Spatial coverage :

Time coverage :

  • Période Alpine: between -45 Ma and -30 Ma
Publications :
  • Leydier T, Goncalves P, Lanari P, Oliot E. On the petrology of brittle precursors of shear zones – An expression of concomitant brittle deformation and fluid–rock interactions in the ‘ductile’ continental crust? J Metamorph Geol. 2019;37:1129– 1149. (doi:10.1111/jmg.12504)
  • Mineralogical and textural evolution of shear zones in the granitic middle crust : geophysical implications (hal:tel-03329990)
Project and funders :
Additional information :
Données produites dans le cadre de la thèse de Thomas Leydier, encadrée par Philippe Goncalves (maître de conférences HDR en géologie au laboratoire Chrono-environnement) et Julie Albaric (maître de conférences en géophysique et sismologie au laboratoire Chrono-environnement).
Record created 21 Aug 2020 by Philippe Goncalves.
Last modification : 6 Jan 2023.
Local identifier: FR-18008901306731-2020-08-21.


dat@Chrono is a sub-portal of dat@UBFC, a metadata catalogue for research data produced at UBFC.

Terms of use
Université de Bourgogne, Université de Franche-Comté, UTBM, AgroSup Dijon, ENSMM, BSB, Arts des Metiers