What caused this?
Dec 28, 2013 17:34:25 #
In NE Arizona at Canyon De Chelly is a gigantic sandstone rock formation that I would guess to be 300 to 400 meters (900 to 1200 feet) above ground with a verticle crack from top to bottom. In Arches NP in Utah is a very large rock pinnacle snaped off at the top but still balanced on top of the rock it was separated from. This chunk of rock on top probably weighs 75 to 100 tons (that's my wild guess).
The large crack in the large sandstone rock at Canyon De Chelly looks like a stress fracture. The rock in Arches NP looks like earthquake. What do you think?
The large crack in the large sandstone rock at Canyon De Chelly looks like a stress fracture. The rock in Arches NP looks like earthquake. What do you think?
Bottom
Halfway up
Top
Arches N.P.
Dec 28, 2013 17:47:59 #
Frank 2012 wrote:
The rock in Arches NP looks like earthquake. What do you think?
To me, The rock in Arches NP is due to the failure in a sedimentary layer and a subsequent slide by the top piece.
.....Creationists will give you a totally different story ....lol :)
Dec 28, 2013 17:53:59 #
It doesn't really matter. They both give you outstanding views and picture choices.
Dec 28, 2013 19:51:34 #
Dec 28, 2013 23:11:36 #
TucsonCoyote wrote:
To me, The rock in Arches NP is due to the failure in a sedimentary layer and a subsequent slide by the top piece.
.....Creationists will give you a totally different story ....lol :)
.....Creationists will give you a totally different story ....lol :)
And that would be?
Dec 29, 2013 14:01:38 #
Dec 29, 2013 15:34:45 #
TucsonCoyote wrote:
To me, The rock in Arches NP is due to the failure in a sedimentary layer and a subsequent slide by the top piece.
.....Creationists will give you a totally different story ....lol :)
.....Creationists will give you a totally different story ....lol :)
That is an interesting observation.....I hadn't thought of the top part exerting sufficient pressure to cause gradual failure in the connecting lower section. I wouldn't want to be too close if the top part slips and slides over the edge. I think I will go back in a few years ....take another picture to see if I can determine if the top part has moved.
Dec 29, 2013 15:41:25 #
twowindsbear wrote:
The feature in the Canyon De Chelly photos look like a fault.
It could be a fault. I wasn't observant enough to check the adjacent ground to see if there was a continuation of a fault line.
The frequent wind and sand storms in the area usually hide surface fault lines from "walking around on the ground" observation. Much easier to see from an airplane
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