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

Workshop Program

Download the Program and Abstracts (Acrobat (PDF) 9.1MB Feb22 19), and all the presentations can be downloaded from the links in the program below, but note that many of these files are REALLY BIG so be patient.

January 10 (Thursday)

Travel day; Check in at Lewis and Clark Hotel; Dinner 7:00 PM (meet in hotel lobby at 6:45 for shuttle to restaurant, Open Range (Main Street); Introductions; Overview; Logistics; Goals and Outcomes

January 11 (Friday) Montana State University

Daily Theme: What do we know? What have we learned about the composition, architecture and evolution of the crust/mantle system as a result of EarthScope science in (under) the Wyoming Craton?

[12 minute talks, 5-6 slides/presentation; 3 minute discussion: What "big" questions are addressed? What are the key findings and their significance? Next steps towards an integrated understanding of the North American continent?]

8:00 Breakfast service SUB 233 (Student Union); Network, make a new friend!

Overview and Context

8:30 Dave Mogk: Welcome, logistics; Context and Overview (review of 2005 EarthScope in Northern Rockies workshop) (PowerPoint 2007 (.pptx) 4.9MB Feb22 19); workshop goals and anticipated outcomes

Click to view
8:45 Suzan van der Lee, Gene Humphreys, Heather Ford: Results of the EarthScope 4-D Evolution of North America workshop (PowerPoint 2007 (.pptx) 16MB Feb22 19): The challenges of connecting surface geology to EarthScope-resolved features.

Crustal Genesis (Archean petrogenesis, tectonics [plate or not]....)

Mueller EScope talk 2019F.pptx
Click to view
9:00 Paul Mueller—]The Wyoming Province: A Unique Archean Craton (PowerPoint 2007 (.pptx) 4.5MB Feb22 19)

MOGK ES 2019.pptx
Click to view
9:15 Dave MogkTTGs We Have Known and Loved: 1.5 Ga of Growth and Recycling of Archean Continental Crust in the Northern Wyoming Craton (NWC) (PowerPoint 2007 (.pptx) 4.7MB Feb22 19)

Frost EarthScope 2019.pptx
Click to view
9:30 Carol FrostThe Archean geologic history of the southern Wyoming Province: a focus on the extent of ancient crust and time of cratonization. (PowerPoint 2007 (.pptx) 17.6MB Feb22 19)

Henry 2019 Earthscope meeting.ppt
Click to view
9:45 Darrell HenryArchean Metamorphic history of the northern Wyoming Province (NWP); implications for Precambrian plate tectonics, level of exposure across the NWP vs. metamorphic grade. (PowerPoint 25.3MB Feb22 19)

Click to view
10:00 David BowenThe View from (of) the Top: Considerations of the Phanerozoic Stratigraphic Cover on the Wyoming Craton (PowerPoint 2007 (.pptx) 116.3MB Feb22 19)

10:15 BREAK

Precambrian Crustal Evolution (assembly, reassembly, reworking, mobilization of the Wyoming Craton; Late Archean through Paleoproterozoic)

10:30 Kevin ChamberlainSome Key Observations Pertinent to the Formation and Stabilization of the Wyoming Province (Acrobat (PDF) 16.2MB Feb22 19)

Gifford_Lessons learned from the Great Falls tectonic zone_Formatted.pptx
Click to view
10:45 Jen GiffordLessons Learned from the Great Falls Tectonic Zone, Medicine Hat-Wyoming Suture: Crustal xenoliths and the Little Rocky Mountains (PowerPoint 2007 (.pptx) 20.3MB Feb22 19)

Baldwin earthscope.pptx
Click to view
11:00 Julie Baldwin— Paleoproterozoic metasupracrustal suites on the NW flank of the Wyoming Province: insights into an evolving continent (PowerPoint 2007 (.pptx) 86.7MB Feb22 19)

Vervoort Bozeman presentation 2019.pptx
Click to view
11:15 Jeff VervoortNeoarchean and Paleoproterozoic crystalline basement rocks of the Clearwater and Priest River complexes: Constraints on the formation of western Laurentia (PowerPoint 2007 (.pptx) 41.9MB Feb22 19)

11:30 Ryan WilhelmiNothing Quiet on the Western Front: Late Archean to Neoproterozoic Evolution of West-Central Laurentia (PowerPoint 2007 (.pptx) 33.4MB Feb25 19)

Click to view
11:45 Kevin MahanDeep crustal structure, processes, and properties from xenoliths, basement exposures, and seismic observations in the northern Rocky Mountain region (PowerPoint 2007 (.pptx) 41.1MB Feb22 19)

12:00 Lunch—Catered, Room 230 SUB

Post-Cratonization Geologic History/Contemporary Structure

Mogk ES Belt Slides.pptx
Click to view
1:00 Dave Mogk/Paul Mueller/Carol Frost: Some Reflections on the Mesoproterozoic Belt- Purcell Basin (PowerPoint 2007 (.pptx) 3.8MB Feb22 19)

Kalakay-Earthscope Pres1..pptx
Click to view
1:15 Tom Kalakay—From Contraction to Extension: Tectonomagmatic Architecture of the Sevier Orogenic Wedge of Western Montana (PowerPoint 2007 (.pptx) 41.8MB Feb22 19)

What's Up With the Mantle?

1:30 General Discussion (led by Paul Bedrosian): What can we learn from magnetotellurics about deep crustal structure, shear zones, hydration of the crust and controls on crustal strength

Click to view
1:45 David Snyder: Weakening Cratons by Metasomatism: Conductivity Maps the Alteration (PowerPoint 2007 (.pptx) 9.9MB Feb22 19)

Click to view
2:00Heather Bedle : Synthesis of regional-scale geophysical, geochemical, and thermal models of the crust and upper mantle beneath the Wyoming craton (PowerPoint 2007 (.pptx) 10.4MB Feb22 19)

2:15 Katie Cooper: The Making and Breaking of Cratons (Acrobat (PDF) 1.3MB Feb22 19)

2:30 Break

Suzan VDZ WYCnWIB_sanitized.pptx
Click to view
2:45Suzan Van Der Lee: The Wyoming Craton is no Longer a Craton (PowerPoint 2007 (.pptx) 2.8MB Feb22 19)

3:00 Gene Humphreys: Laramide-age growth of the Wyoming Craton by ocean plateau under-accretion (Acrobat (PDF) 35.5MB Feb22 19)

Click to view
3:15 Vera Schulte-Pelkum: Deformation and Structural Evolution of the Deep Crust and Lithosphere from EarthScope Seismic Data and Geological Ground Truth (PowerPoint 2007 (.pptx) 19.6MB Feb22 19)

Click to view
3:30 Heather Ford: Imaging the mantle structure of cratons: Implications for the formation and modification of the Wyoming lithosphere (PowerPoint 2007 (.pptx) 82.5MB Feb22 19)

Click to view
3:45 Ray Russo: Results from the IDOR (Idaho-Oregon) Passive Seismic Experiment) (PowerPoint 2007 (.pptx) 152.7MB Feb22 19)

Detrick_Wyoming Craton.pptx
Click to view
4:00 Bob Detrick-- The Transportable Array—A Unique capability for the Earth Sciences Community (PowerPoint 2007 (.pptx) 17.6MB Feb22 19)

4:15 - 5:30 General Discussion and Reflections

Suggested Discussion Questions: [We will not have time to address all these questions. But, they can be possible topics for focused writing in the rest of the workshop and beyond. These questions derive from earlier workshop reports, EarthScope Science plans, and other communications.]

6:00 Dinner Downtown (TBD); continued discussion; networking...

January 12 (Saturday) Montana State University Student Union Building Room 230

Daily Theme: The "work" day of the workshop. Addressing the "big questions" of integrated EarthScope Science and Education

Small group discussions in break out groups; report out to whole group.Outcome: detailed outline of a) Big questions, b) Evidence from EarthScope science [maps, figures, graphs, datasets, data-products such as tomograms....], c) Key findings and interpretations. Group work will be recorded in Google Docs for future development.

8:00 Breakfast service SUB 230; Networking

8:30-9:30 Whole group discussion

a) Big ideas from yesterday's presentations to be added to the list of discussion topics from the end of Friday's session.

b) Big questions identified in EarthScope Science Plan AND from 2005 EarthScope in the Northern Rockies workshop (how well did we do in the past decade in identifying and addressing these questions)?

c) Charge to working/writing groups

Working Groups I—Organized by Disciplinary approaches

[Outcomes: Record discussion topics in the Google Drive as a detailed outline of a) Highest priority research topics; b) Major contributions; c) Major results and interpretations; and d) References. Note: at 10:30 some participants may want to migrate to another session, or emissaries may be sent from one group to another to integrate information]

1. Archean/Paleoproterozoic crustal evolution (geochemistry, geochronology, isotopic emphasis) [Mueller, Frost, Mogk, Vervoort, Gifford]

2. Precambrian to Phanerozoic geology, petrology, tectonics, structural geology, basin formation, magmatism [Baldwin, Chamberlain, Henry, Karlstrom, Kalakay, Mahan, Bowen]

3. Lithospheric/mantle structure [Bedle, Cooper, Russo, Van der Lee, Schulte-Pelkum, Ford, Humphreys, Detrick, Bedrosian]

9:30-11:30 Small Group Discussions: a) Geochemistry/geochronology/isotopic tracers; b) structural geology/tectonics/petrology; c) Geophysics. (Record key discussion points on Google Docs); Take a break as needed. (Rooms 232, 230 available for break outs).

11:30-12:15 Report Outs from Discussion Groups (15 minute overviews)

12:15-1:15 LUNCH

1:15-1:45 Whole Group DiscussionCross-cutting and Integrative Science

Suggested topics from earlier workshops/literature. Group will help refine these topics and self-select for participation. [Refine or add to topics below. Then form small working/writing groups to explore topics of highest importance and interest].

What does EarthScope science tell us about these suggested topics:

1:45-4:00 Small Working/Writing Groups (Break as needed). [Small group discussions in breakout groups; report out to whole group. Outcome: detailed outline of a) Big questions, b) Evidence from EarthScope science (maps, figures, graphs, datasets, data-products such as tomograms....), c) Key findings and interpretations, d) References. Group work will be recorded in Google Docs for future development].

4:00-5:00 Report Out of Writing Groups. General Discussion and input from whole group.

Dinner Downtown (TBD)

January 13 (Sunday) Montana State University Student Union Building Room 230

8:00 Breakfast service SUB 233; Networking

Outcomes Day

8:30-9:30 Whole group Discussion I—Education and Outreach Opportunities, Led by

Elisabeth Nadin, ESNO

Whole group brainstorming about how to translate EarthScope science to broader audiences: a) K-12 teachers (curriculum, partnering with established groups like IRIS, UNAVCO, NESTA....); b) Undergraduate studies (SERC, ....) including minority institutions (e.g. tribal colleges); c) Graduate studies (COMPRES, CIG...), d) Informal education for general public.

9:30-10:00 Break Out Groups II

Finalize outlines; confirm writing assignments; timelines

10:00-11:00 Whole Group Discussion II—Writing Plan

11:00 Wrap up: Reflections on progress made; next steps needed

Distribute box lunches for travel.

Depart for airport as needed to catch flights.