Lake Mead - Malpais Flattop Mesa

This is a photo of Malpais Flattop Mesa.

Detailed Description

This zoomed-in view shows Malpais Flattop Mesa in the Black Mountains beyond the Black Canyon gorge flooded by Lake Mohave. The mesa is capped by a horizontal layer of a massive volcanic flow that formed about 12 million years ago. The Black Mountains consist of a thick sequence of Miocene-age volcanic rocks and alluvial sediments that overlie ancient Precambrian-age metamorphic rocks. These rocks have been folded and faulted by ongoing regional tectonic forces shaping the eastern margin of the Basin and Range Province (Beard and others, 2007).


Image Dimensions: 800 x 600

Date Taken:

Location Taken: US