Fred, donyou suppose the drastic creation of “heavy” carbonates in Gale crater was caused by the plazma strm that ddug the eep trenches across the face f Mars, as proposed by The Electric Universe theory.
It may be that those huge plasma discharges stripped Mars of its water and its atmosphere.
In 1950 Immanuel Velikovsky published Worlds in Collision, giving a plausible explanation for Mars’ current condition. Most of it has either been proven accurate, or not been disproven. An interesting read.