slgwv

slgwv club

Posted: 07 Apr 2011


Taken: 01 Jan 1979

6 favorites     7 comments    397 visits

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Keywords

geology
weathering
USA
Clark County
state park
Valley of Fire
Nevada
calcite
veins
Aztec Sandstone


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Differential weathering

Differential weathering
Harder calcite (I think) veins weathering out of Aztec Sandstone. Valley of Fire State Park, Nevada, USA. The Aztec is correlative with the Navajo Sandstone of Utah and northern Arizona, but for historical reasons has a different name here. The calcite crystallized in cracks. You can tell this is a desert area, because the _calcite_ would weather first if the climate weren't so arid!

Smiley Derleth, , tiabunna, and 2 other people have particularly liked this photo


7 comments - The latest ones
 slgwv
slgwv club
Thanks!
10 years ago.
 slgwv
slgwv club
It's a spectacular example of a fairly common phenomenon. I've seen it commonly in granites, where a fine-grained, light-colored dike ("aplite") will stand out above the surrounding rock because it's harder.
10 years ago. Edited 10 years ago.
 Pam J
Pam J club
Quickens my heart rate...

Sooooo want to see it !

Admired in ~ I ♥ Nature
9 years ago.
 slgwv
slgwv club
Thanks! I hope it's still there--it would be pretty vulnerable to vandalism.
9 years ago.
 William Sutherland
William Sutherland club
Fantastic capture!

Admired in:
www.ipernity.com/group/tolerance
9 years ago.
 tiabunna
tiabunna club
Fascinating image and background info. I've seen that here, but now understand the reason slightly better. Admired in: www.ipernity.com/group/tolerance
9 years ago.
 slgwv
slgwv club
Thanks, everyone! Yeah, as I said above, this is a spectacular example of a common phenomenon.
9 years ago.

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