Tag Archives: gravel

Geologist discovers Whirlwinds of crystals called gravel devils in Andes mountains

After the gravel devils move the gypsum, some of it clumps together when exposed to groundwater.Credit Kathleen Benison Large hunks of gypsum swept between two volcanoes Geologist Kathleen Benison was working in the Atacama desert in Chile where the harsh … Continue reading

Posted in Geology | Tagged , , , , , | Leave a comment