Constraining the Crystallization and Early Cooling History of Large Impact Melt Sheets Through High-Precision Geochronology – Implications for the Thermal Evolution of Early Planetary Crusts and Associated Habitability

Gavin Kenny1, James L Crowley2, Mark David Schmitz2, Marco A. G. Andreoli3 and Roger Gibson4, (1)Swedish Museum of Natural History, Stockholm, Sweden, (2)Boise State University, Boise, ID, United States, (3)University of the Witwatersrand, Johannesburg, South Africa, (4)University of the Witwatersrand, School of Geosciences, Johannesburg, South Africa