Elena Druguet 
 Institut für Geowissenschaften (Tektonophysik) 
Johannes-Gutenberg Universität 
Becherweg 21 
55099 Mainz (Germany) 
Tel. +49 6131 3925584 
Fax +49 6131 3923863 

email: Druguet@mail.Uni-Mainz.de
 
provisional photo 

 
 
Research interest: 

Structural geology of mid to deep seated crustal rocks, particularly mesostructures (those which can be measured with a compass). 

Strain and kinematic analysis of high-strain zones. Experimental and computer modelling. 

Relations between deformation, metamorphism and magmatism. Emplacement of granitic bodies and veins. 

Current field areas: Cap de Creus and other Variscan massifs in the Pyrenees; and Zenaga Precambrian inlet (Anti-Atlas, Marocco). 

Complex folding pattern in quartzite beds from Cap de Creus. 

 

Postdoctoral research fellow in Mainz:
Kinematic modelling of ductile shear zones.
Supervisor: Cees Passchier
Funded by the European Commission (Marie Curie Research Training Grant, TMR program)
Research objectives and contents An important aspect of deep-seated deformation processes in crust and mantle is that ductile flow is usually concentrated along high strain zones, especially shear zones. Shear zones are regularly used in the large-scale reconstruction of tectonic regimes. The kinematic structure and history of shear zones is usually established using small scale shear sense indicators (SSI), hence the importance of these structures. The main objective of this research project is to increase the understanding of geological structures which are used as kinematic indicators in ductile shear zones. The project is based in a combination of field (eastern Pyrenees), experimental (rock analogue modelling) and numerical (using FLAC computer code) studies. Since displacement determinations in shear zones are used in large-scale reconstruction of tectonic regimes, the role of small-scale kinematic indicators needs to be well understood.
Small scale shear sense indicators are generally asymmetric structures. They include such different structures as oblique foliations, shear band cleavages, mantled porphyroclasts, lozenge shaped bodies, lattice-preferred orientation and asymmetric folds (e.g. sheath folds). Other structures that are potential shear sense markers because they development is as yet incompletely understood are: sets of deformed veins, relatively-rigid objects, inclusion patterns in porphyroblasts, tension gashes, strain shadows, fragmented rigid grains, tiling, asymmetric pull-aparts and asymmetric boudins. A major emphasis of this project is given to asymmetric boudinage. Despite this is a very common structure in ductilely deformed rocks, the relationship between their geometry and kinematics/dynamics is poorly known. Experimental and numerical studies of this relationship can give us tools to use and interpret the observed field geometry of boudins in large scale tectonic studies.
 
Boudinaged pegmatite from Cap de Creus.
 
 
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Last update 9 July 1999