Ann Pearson¹, Felix J Elling¹, Jordon Hemingway¹, Thomas W. Evans², Jenan J. Kharbush³, Eva Spieck⁴ and Roger E Summons⁵, (1)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (2)Massachusetts Institute of Technology, Cambridge, United States, (3)Harvard University, Earth and Planetary Sciences, Cambridge, United States, (4)University of Hamburg, Hamburg, Germany, (5)Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States