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Session No. 253: T173. Proterozoic Tectonics of Western Laurentia: New Perspectives on Crustal Growth, Orogenesis, Mineralization, and Intracontinental Reworking
Session Chairs:
Ian Hillenbrand, Alexander Lusk, Amy Gilmer, Shannon Mahan, Amy Atwater | Friends of Dinosaur Ridge, Patrick Sullivan | Colorado School of Mines, James Paces | USGS Emeritus, Lewis Kleinhans
Description:
This session explores Proterozoic crustal growth, orogenesis, and intracontinental reworking across western Laurentia. We welcome contributions addressing terrane assembly, province boundaries, polyphase deformation, magmatism, structural reactivation, and connections to mineralization.
Presentations
| Paper No. | Title | Presenting Author | Start Time | End Time | Item Duration (min) | Action | 253-1 | Linking the Structural and Metamorphic Evolution of Paleoproterozoic Crust in Central Laurentia with Later Far-field Tectonic Events | Ross Salerno | 10:00 AM | 10:15 AM | 15 min | View | 253-2 | A multimineral perspective on the provenance of the Mesoproterozoic Belt Supergroup and its long metamorphic history | Richard Gaschnig | 10:15 AM | 10:30 AM | 15 min | View | 253-3 | Mesoproterozoic NW-SE Shortening under Greenschist-Facies to Brittle-Plastic conditions in the Skin Gulch Shear Zone and South Fork Antiform, Northern Colorado Front Range | John Singleton | 10:30 AM | 10:45 AM | 15 min | View | Break | 10:45 AM | 11:00 AM | 15 min | 253-4 | Repeated Reactivation Reveals Persistent Weakness in Colorado's Continental Lithosphere | Alexander Lusk | 11:00 AM | 11:15 AM | 15 min | View | 253-5 | U-Pb Zircon Dating of Granitic Pegmatites in the Crystal Mountain District in the Northern Colorado Front Range | Graham Baird | 11:15 AM | 11:30 AM | 15 min | View |
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Proterozoic Tectonics of Western Laurentia: New Perspectives on Crustal Growth, Orogenesis, Mineralization, and Intracontinental Reworking
Description
Date and Time: Tuesday, 13 October - 10:00 AM (Mountain Time (US & Canada))
Room: CCC, Bluebird Ballroom 2C
Session Type: Topical Sessions
Session Format: Oral
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