Joseph Novak, Brown University, Providence, RI, United States, Sarah Madeline McGrath, Cologne, Germany, Wolfgang Kuhnt, Christian-Albrechts-University, Institute of Geosciences, Kiel, Germany, Steven C Clemens, Brown Univ, Providence, RI, United States and Yongsong Huang, Brown University, Earth, Environmental and Planetary Sciences, Providence, RI, United States