ROCK DEFORMATION LAB
The Rock Deformation lab at the Ben-Gurion University of the Negev study the dynamics of Earth, from the shallow crust to the deep mantle.
High pressure and temperatures experiments with the new 'Griggs' type apparatus and microstructural analysis using electron backscatter diffraction (EBSD) of natural samples are used to explore the micro-scale underlining physics of deformation of Earth and other planetary bodies.
Naturally or experimentally induced deformation in rocks can be the focal point of research, whether considering the study of faults and slip along faults during earthquakes (unstable, seismic event) or the study of lower-crust and mantle creep (stable, aseismic flow). These phenomenon, their controling mechanism/s, and resulted mark on the rock microstructures (textures) are our way in understanding the strength and mechanical behavior of Earth layers. Research questions can be related to the study of earthquakes and earthquakaes hazards, such as what makes a fault stable or unstable, what conditions will generate the type of structures we observe in the field? What are the forces and processes that drive plate tectonics? or what are the microstructural, chemical, and rheological ('the study of flow') properties of mantle flow?
3-D Electron Backscatter Diffraction of a peridotite mantle sample from Wyoming, USA (LabDCT technology at Xnovo Technology)
We're looking for motivated students to join our team! If you're interested please contact us.
The new 'Griggs' type solid-medium apparatus for deformation can simulate conditions of down to ~100 km depth into the Earth with the conditions of high temperatures (~1300 C) and pressures (~3 GPa). The apparatus was installed at the Rock Deformation lab at Ben-Gurion University February 2020.