Stuck in the clay: Organic matter preservation in clay-rich surface paleoenvironments of Earth and Mars

Adrian P. Broz1,2, Greg Retallack1, Briony H. N. Horgan3, Lucas Silva4 and Matthew Polizzotto1, (1)University of Oregon, Department of Earth Sciences, Eugene, OR, United States, (2)Jacobs JETS, NASA Johnson Space Center, Houston, TX, United States, (3)Purdue University, Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States, (4)University of Oregon, Department of Geography, Eugene, OR, United States