Prehistoric lava plateau in northern Patagonia • Earth.com

Last update: November 12th, 2019 at 11:00 am

Today’s Image of the Day from NASA Earth Observatory features a unique stretch of prehistoric lava fields in northern Patagonia to the east of the Andes Mountains.  

This area does not receive much rain, which is why there is no green vegetation visible.  

According to Johan Varekamp of Wesleyan University, the darkest colors represent volcanic rocks from the Oligocene-Miocene about 25 to 30 million years old.

The lava plateaus were once much more extensive, but erosion has removed large portions of rock from their outer edges.

This image was captured on August 20, 2018 by the Operational Land Imager (OLI) on Landsat 8.

By Chrissy Sexton, Earth.com Staff Writer

Image Credit: NASA Earth Observatory

 


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