>>11785975Look into electric geology. Michael Steinbacher's (RIP) videos is a good place to start:
https://www.youtube.com/playlist?list=PLPhp4wC40lf5_kzWV2wEWQqTJw0sJiLCnIt all has to do with how the soil was affected during the cataclysm of the breakup of the polar configuration, some areas were burnt to a crisp and turned into deserts while others were spared. Also countless mountains worth of material, soil and organic material all vaporized into sand, where thrown around in the air and deposited in various locations. Take most of Australia for example, all that red iron oxide -- all material was dumped from Mars. Same with this area in North America:
https://www.google.com/maps/@37.2171434,-110.2806897,477178m/data=!3m1!1e3 
