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The Wyoming Province What’s on top? Major sub-provinces: MMT: Montana metasedimentary terrane BBMZ: Beartooth-Bighorn magmatic zone SAT: Southern Accreted terranes Prominent Paleoproterozoic mobile belts: GFTZ: Great Falls tectonic zone THO: Trans-Hudson orogen CB: Cheyenne Belt FZ: Farmington zone MMT GFTZ THO BBMZ SAT FZ CB

Workshop Goals 1. Synthesize what we have learned about the evolution of the Wyoming Craton, integrating EarthScope-derived data with other extant scholarly research since the 2005 EarthScope in the Northern Rocky Mountain workshop; 2. Identify major research questions within the overall 4-D evolution of the Wyoming Craton and its place in the assembly of Laurentia/North America, based on integration of all components of EarthScope science (geology, geophysics, geochemistry, geochronology….), and the scientific evidence available (or needed) to address these questions. 3. Outcomes: a) Workshop report summarizing the central questions, findings/interpretations, and vision for future research; b) a writing plan for follow-on synthesis articles (possibly as a themed volume) with writing groups, topics, and timelines identified; and 4. Education and outreach plan to translate EarthScope science to formal and informaleducational venues.

Workshop Program Friday: Wyoming Province Through Time (15 minute talks) Wrap up Discussion Identifying “Big Ideas” from the day Saturday: Major advances in understanding the 4D evolution of the Wyoming Province using EarthScope Science Morning: Disciplinary Discussions Afternoon: Cross-Cutting Topics Sunday: Action Plans Education and Outreach Needs and Opportunities Working/Writing Groups Report Outs Writing plans (and timeline), Theme Sessions, Volumes…????

2005 ES in the Northern Rockies Obtaining a better understanding of the lithospheric structure and evolution within and adjacent to the Wyoming Craton. Developing a more complete understanding of the interaction of the ancient lithosphere of the Wyoming craton with the Yellowstone hot spot and associated Snake River Plain volcanism and the shallow subduction regime of the Farallon plate. Increase our understanding of lithospheric evolution involves developing a better appreciation of how continental lithosphere accommodated the immense thickness of Belt basin sedimentation.

2005 ES in the Northern Rockies 4. Reactivation of ancient structures by modern stress regimes was also a major issue of interest that derived from our current understanding of the state of stress in the lithosphere and the relations between this stress and its accommodation by ancient structures and age-province boundaries. 5. The nature of 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, are also seen as critical targets 6. The Education and Outreach group identified a number of targets of opportunity to serveeducators at all levels.

How did we do in meeting these research and education targets over the past decade? Let’s find out as we proceed through this 2019 workshop!

Some Housekeeping Breakfast, snacks, lunch served in this room Dinner Friday: Pakeezah - Indian Restaurant, 34 N. Black (off Main Street) Saturday: Mid Town Tavern, N. 7th Espresso etc. at south entrance, sweets downstairs Bathrooms, down main hall to the left (south) Wi-Fi: MSU Guest Presentations Friday: GSA style, 15 minutes Discussion Sessions: Assign moderator AND reporter Record key points on Google Docs Make sure all voices are heard Writing Plans Workshop Report Follow-on Review/Synthesis Papers Sessions at GSA/AGU? Special Volume?