EarthScope Synthesis Workshop
Life and Death of a Craton: A 4D EarthScope Perspective on the Role of the Wyoming Craton in the Evolution of North America
January 10-13, 2019; Montana State University, Bozeman MT
Conveners: David Mogk, Montana State University; Paul Mueller, University of Florida; Carol Frost, University of Wyoming; Ray Russo, University of Florida
1. Obtaining a better understanding of the lithospheric structure and evolution within and adjacent to the Wyoming craton. This includes a) imaging of velocity, structure and thickness of the crust and sub-cratonic mantle, and b) establishing the geochronologic framework of crustal evolution, use of isotopic tracers to distinguish source areas and to demonstrate pathways in global geochemical cycling, and determination of the rates of geologic/geochemical processes (from mantle to surface and back).
2. Development of a more complete understanding of the interaction of Wyoming craton lithosphere with the Yellowstone hot spot and associated Snake River Plain volcanism and with the shallow subduction regime of the Farallon plate.
3. Broader understanding of the deformation of North American continental lithosphere, including ancient and active deformation: the current state of stress in the lithosphere, accommodation of the Belt basin, reactivation of earlier structures that influence Laramide, Sevier, and Basin and Range structures, neotectonics in the Rocky Mountain seismic belt, and structural control of metallogenesis.
4. Better understanding of the nature of the boundary between the western edge of Precambrian North America and the Phanerozoic accreted terranes, along with the structural and chemical modifications of the lithosphere associated with the Sevier and Laramide orogenies.
5. Develop education and outreach opportunities to serve educators at all levels.
This workshop was sponsored by the EarthScope National Office at the University of Alaska-Fairbanks, with administrative help from Samantha Slease. Montana State University Conference services helped with local logistics and support. Funds for the workshop were provided by the National Science Foundation.