SEKHON, Natasha1, BANNER, Jay L.2, BREECKER, Daniel O.1, TREMAINE, Darrel M.3 and MILLER, Nathan1, (1)Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712, (2)Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712; Environmental Science Institute, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712, (3)Environmental Science Institute, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712; Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712