Indigenous and exogenous organics and surface–atmosphere cycling inferred from carbon and oxygen isotopes at Gale crater

H. B. Franz, P. R. Mahaffy, Christopher R. Webster, Gregory J. Flesch, E. Raaen, Caroline Freissinet, S. K. Atreya, Christopher H. House, A. C. McAdam, C. A. Knudson, P. D. Archer, J. C. Stern, A. Steele, B. Sutter, J. L. Eigenbrode, D. P. Glavin, J. M. T. Lewis, C. A. Malespin, M. Millán, D. W. Ming, R. Navarro‐González, Roger E. Summons