[Eoas-seminar] Today Colloquium Friday Jan 16th

[eoas-seminar at lists.fsu.edu]

It is a pleasure to announce a colloquium presentation by:
Tshering Lama Sherpa
University of Washington
Today  Friday January 16th
   3PM in EOAS 1050
Entitled:
>From Mountains to Microns: Investigating Patterns, Timing and Mechanisms of Crustal Deformation at Convergent Margins

Abstract:
Convergent plate margins are sites where collision results in contractional deformation that reshapes the lithosphere. Where continental plates converge, crustal thickening generates topography and drives mountain building, or orogenesis. The Himalayan orogen has long served as a natural laboratory for this process, yet key questions remain regarding the magnitude, architecture, and timing of crustal deformation during orogenesis. This talk integrates regional structural geology with isotopic and geochemical datasets to reassess how and when contractional deformation is distributed and recorded in the eastern Nepal sector of the Himalayan orogen. I then broaden the perspective to convergent margins where oceanic plates collide with oceanic/continental plates leading to subduction and crustal recycling. To investigate deformation mechanisms at the deep subduction plate interface, this work examines exhumed fossil subduction zone rocks from the Greek Cyclades. Together, these examples of continental collision and subduction reveal how deformation operates spatially and temporally at different scales in convergent plate margins.
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