Sentences with phrase «iron oxide content»
The high iron oxide content of the sand of the Kalahari north of Upington, in the Kgalagadi Transfrontier Park, turns the sand red.
http://blog.sa-venues.com/
In an interview with Nautilus, astronomer and «travel agent» Jana Grcevich touted Mars as one of the key locations for hiking, thanks to the planet's beautiful red rocks, which get their color from their high iron oxide content.