Bok
08-16-2013, 12:21 AM
Erosion came thanks to cooling and more rain, not tectonic activity
More... (http://www.sciencenews.org/view/generic/id/352473/title/News_in_Brief_Climate_change_carved_canyons_in_Andes)
More... (http://www.sciencenews.org/view/generic/id/352473/title/News_in_Brief_Climate_change_carved_canyons_in_Andes)