TY - RPRT TI - Hydrous carbonates on Mars?: Evidence from Mariner 6/7 infrared spectrometer and ground‐based telescopic spectra AU - W. M. Calvin AU - T. V. V. King AU - Roger N. Clark PY - 2012 DO - 10.1029/94je01090 UR - https://pubs.usgs.gov/publication/70017355 ID - 70017355 ER -