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SUMMARY:Shedding the light on shear zone development\, evolution and rheol
 ogy: Case studies and remaining questions - Sandra Piazolo - University of
  Leeds
DTSTART:20231120T180000Z
DTEND:20231120T190000Z
UID:TALK207304@talks.cam.ac.uk
CONTACT:Lucas Measures
DESCRIPTION:Strain localization fundamentally controls not only the local 
 but also the bulk rheological response of a material. As such localization
  of deformation in zones of high strain is fundamental to how Earth deform
 s. Consequently\, it is pivotal that we are able to extract as much inform
 ation as possible from such zones\, including rheology and their evolution
  through space and time. Many studies have shown that strain is easily loc
 alized in a polyphase rock\, especially if the rock undergoes syntectonic 
 metamorphism\, metasomatism and associated weakening. Accordingly\, to stu
 dy shear zones\, we need to integrate information derived from a whole ran
 ge of disciplines including material science\, structural geology\, metamo
 rphic petrology and geochronology. Results from high end analytical techni
 ques\, thermodynamic and rheological modelling underpinned by focussed fie
 ld work need to be combined. This necessity offers new insights\, opportun
 ities but also challenges.\n\nIn this presentation\, I will show a range o
 f recent case studies to highlight how our understanding of high strain zo
 nes is changing as interdisciplinary and multi-technique studies become mo
 re prevalent\, how such studies offer new\, exciting opportunities how to 
 “read a shear zone to the fullest”.
LOCATION: Harker 1\, Department of Earth Sciences\, Downing Street
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