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Sandstone and Basalt

 
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Sandstone and Basalt
Stark differences in geology at the base of Grand Falls on the Little Colorado River. 2-13-10

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NoonduelerLike I said before

Noondueler

Voted 10/10

Your shots are getting better and better! What camera do you use? I need to upgrade.
Posted Feb 14, 2010 9:34 pm

Alex WoodRe: Like I said before

Alex Wood

Hasn't voted

Thank you!! I have been taking alot of pictures so maybe that has helped out some. I just used a Panasonic Lumix 10 megapixel point and shoot. I like to think it gets the job done
Posted Feb 14, 2010 10:28 pm

merrillHow is it

merrill

Voted 10/10

that basalt and sandstone can end up next to each other like that? I should have taken a geology class in college.
Posted Feb 14, 2012 11:10 am

Alex WoodRe: How is it

Alex Wood

Hasn't voted

Well I shall tell you. The Little Colorado River (pictured in the photo) once flowed naturally to the photos left, which is actually west. The San Francisco Volcanic Field is also to the west. Many different eruptions have happened over the course a ten thousand years in the San Francisco Volcanic Field until Merriam Crater erupted east of town. This eruption had lava (aka basalt) that flowed east all the way to the Little Colorado River and end up changing the course of the channel. Basalt is exponentially harder then sandstone so the river had to change its channel and consequently, the river at this point flows north, not west. Hope that clears things up. Cheers!
Posted Feb 14, 2012 2:46 pm

merrillRe: How is it

merrill

Voted 10/10

Very cool! It would be fun to see the two contrasting rock from a high point.
Posted Feb 14, 2012 5:08 pm

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Alex WoodSubmitted by Alex Wood
on Feb 14, 2010 12:28 am

Image ID: 596738
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Object Title: Sandstone and Basalt