SUMMARY
nRED ROCK
nIron     fluid flow
nColors:
nRed (original)
nWhite (bleached)
nDark (concretions)
nField + satellite mapping show fluid paths
nup to reservoir scales
nRED PLANET
nAnalog        Fe mobility
nConcretions preserve diagenetic history
nSaturated fluid flow
nWatery history, ET life? 
nSample return mission - 2013?