Not all canyons are created equal. Steep canyons with amphitheatre-shaped heads are thought to result from the activity of groundwater, on the basis of studies of such features that developed in ...
The layer developed on the top of a bouldery gravel. This gravel is overlain by loess, which is capped by a megaflood diamict deposited during the last glaciation around 18,000 years ago. The ...
An international research team led by a Maltese marine geologist has uncovered evidence that the largest flooding event in known history happened in the Mediterranean more than five million years ago.
Results that may be inaccessible to you are currently showing.