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Persis Exposure

 
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Persis Exposure
EastKing gets a feel for the exposure on the summit of Persis. I tried this too and it gave me the willies. Photographed October 19, 2008.

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JoelSkokReminds me of the summit of Pilchuck

JoelSkok

Voted 10/10

Both have relatively benign south slopes but are sheer to the north
Posted Jan 8, 2011 9:27 pm

gimpilatorRe: Reminds me of the summit of Pilchuck

gimpilator

Hasn't voted

That's true. And that's the common trend for all mountains that are far north of the equator.

It's interesting because I just returned from South America and it was the opposite down there with the south faces being the sheer ones.
Posted Jan 27, 2011 5:40 pm

JoelSkokRe: Reminds me of the summit of Pilchuck

JoelSkok

Voted 10/10

Huh--then the warmer sides are more erosion resistent?....Interesting....I'll mull that one over awhile. Thanks for your observation.
Posted Mar 3, 2011 9:13 am

JoelSkokRe: Reminds me of the summit of Pilchuck

JoelSkok

Voted 10/10

.....Cooler (shadier) sides remain wet longer. Water running downslope is highly erosive. Freeze-thaw cycle pries yet more material off to be later carried away by water, avalanches or glaciers. What do you think?
Posted Mar 3, 2011 9:19 am

gimpilatorRe: Reminds me of the summit of Pilchuck

gimpilator

Hasn't voted

It's an interesting process for sure. Here's the way it was explained to me. In a time when glaciers were more prolific, the ice melted away on the southern slopes much sooner. But on the northern slopes where the ice was protected by the shade, it had literally ages more to cut away at the rock. You can still see this phenomenon on a lot of peaks today where the only remaining glaciers are on the steep northern faces.
Posted Mar 3, 2011 11:08 am

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gimpilatorSubmitted by gimpilator
on Oct 20, 2008 9:41 am

Image ID: 455166
Hits: 1316 
Object Title: Persis Exposure