Adding “Time” to the Earthscope Image: Petrologic Analysis, Structural Analysis, and Monazite Geochronology of the Proterozoic Crust M. Williams, M. Jercinovic,

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Presentation transcript:

Adding “Time” to the Earthscope Image: Petrologic Analysis, Structural Analysis, and Monazite Geochronology of the Proterozoic Crust M. Williams, M. Jercinovic, K. Karlstrom, K. Mahan, G. Dumond

From Whitmeyer and Karlstrom

1.65 Ga

1.4 Ga

CD-ROM Synthesis, 2002

Arc Accretion Yavapai Orogeny Mazatzal Orogeny Reactivation… Plutonism, Metamorphism, Deformation Grenville Orogeny Proterozoic Events Exhumation

Amphibolite-facies, mid-crustal metamorphism GPa km

Upper Granite Gorge, Grand Canyon

High-P- syntectonic Med.-P. ( GPa), 400C Pluton-Influenced

From Shaw

CD-ROM Synthesis, 2002