DSC01889 - Glacial Striations on Basalt Columns - Devils Postpile (California)
Photo © Tristan Savatier - All Rights Reserved - License this photo on www.loupiote.com/15733308611
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The top of the columns of Devils Postpile - Columnar Basalt in the Eastern Sierra (California)
A basalt volcanic flow formed hexagonal-shaped columns when it cooled down.
You can clearly see the parallel grooves showing the erosion caused by debris pushed by the slow-moving ice of the glacier that used to cover this valley. Those marks are called glacial striations.
For more info about this rock formation, go to en.wikipedia.org/wiki/Devils_Postpile_National_Monument.
If you like this photo, follow me on instagram (tristan_sf) and don't hesitate to leave a comment or email me.
DSC01889 - Glacial Striations on Basalt Columns - Devils Postpile (California)
Photo © Tristan Savatier - All Rights Reserved - License this photo on www.loupiote.com/15733308611
Share this photo on: facebook • twitter • more...
The top of the columns of Devils Postpile - Columnar Basalt in the Eastern Sierra (California)
A basalt volcanic flow formed hexagonal-shaped columns when it cooled down.
You can clearly see the parallel grooves showing the erosion caused by debris pushed by the slow-moving ice of the glacier that used to cover this valley. Those marks are called glacial striations.
For more info about this rock formation, go to en.wikipedia.org/wiki/Devils_Postpile_National_Monument.
If you like this photo, follow me on instagram (tristan_sf) and don't hesitate to leave a comment or email me.