Mercury’s Hollows: Depths, Estimation of Formation Rates, and the Nature of the Bright Haloes

David T Blewett1, Amanda C Stadermann2, Nancy L Chabot1, Brett W Denevi3, Carolyn M Ernst4, Zhiyong Xiao5 and Sean C Solomon6, (1)JHU Applied Physics Lab, Laurel, MD, United States, (2)Washington University in St Louis, Earth and Planetary Sciences, St. Louis, MO, United States, (3)JHU Applied Physics Lab, Laurel, United States, (4)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (5)China University of Geosciences, Wuhan, China, (6)Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States