David Young
The Geological Sciences Colloquium Series presents Dr. David Young discussing “Stopping Plate Tectonics: the Caledonian Collision in Scandinavia” on Friday, Nov. 15, at 2 p.m. in Clippinger 205.
Young is an Assistant Visiting Professor of Geological Sciences at Ohio University Department of Geological Sciences.
Abstract: Continental collisions produce the most profound topographic features on Earth and reorient plate motions. A variety of methods are available to measure the near-surface kinematics in currently active settings, but the bounding structures, internal geometry, and metamorphic condition of thrust sheets beneath the hinterland can only be inferred indirectly through geophysical methods or numerical models. The deformation features that link the frontal superstructure of an orogen to the deeper hinterland are more accessible in older eroded mountain belts—the Siluro-Devonian Caledonides in Scandinavia are a global exemplar of this tectonics, and contain one of the largest contiguous domains of eclogite-facies rocks on Earth in the Western Gneiss Region of western Norway. The structure, metamorphic patterns, and geochronology of this terrane are fundamentally important to our understanding of the kinematic expression and timeline of underplating and imbrication in the deepest levels of collisional orogens.
Upcoming Colloquia
Xizhen Schenk of Ohio University Geological Sciences on “Balancing Climate and Land Use Changes with Limited Groundwater Resources of a Paleokarst Aquifer System” on Dec. 6 at 2 p.m. in Clippinger 205.
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