A Global Perspective on Habitability in Fracture Fluids in Precambrian Shield Environments Anchored on 4He, 40Ar, and H2 Production

Oliver Warr, University of Toronto, Department of Earth Sciences, Toronto, ON, Canada, Thomas Giunta, University of Toronto, Toronto, ON, Canada, Chris J Ballentine, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom and Barbara Sherwood Lollar, University of Toronto, Earth Sciences, Toronto, ON, Canada