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Soca river in its upper part....

 
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Soca river in its upper part....
Soca river in its upper part. July 9th, 2004.

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DigglerIs this glacial runoff?

Diggler

Voted 10/10

The color is so cool! Wish I were there right now!
Posted Jul 13, 2004 12:39 pm

Vid PogachnikRe: Is this glacial runoff?

Vid Pogachnik

Hasn't voted

No, there are no more glaciers in Julian Alps. I think Soca has its unique colour because of some algae or whatever in limestone. I'm gonna check it right now, if possible. I just know the fact and not the reason :-(
Posted Jul 13, 2004 12:44 pm

Vid PogachnikRe: Is this glacial runoff?

Vid Pogachnik

Hasn't voted

No, I was wrong. Soca river does not have its colour because of algae, but because of tiny, invisible particles of chalk (perhaps chalk is not the right word - a sort of soft limestone) in it.
Posted Jul 13, 2004 1:25 pm

DigglerRe: Is this glacial runoff?

Diggler

Voted 10/10

Makes sense- the ocean at the Big Sur coastline in places here in California has a similar color because of limestone as well. At any rate, nice shot!
Posted Jul 13, 2004 1:47 pm

wuedesauRe: Is this glacial runoff?

wuedesau

Hasn't voted

As I know the colour is mainly caused by micro-crystals of Calcite (CaCO3) breaking the light.

River Soca is wonderful (just returning from there) and it was time to put some pictures of it on SP!
Posted Jul 13, 2004 2:05 pm

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Image Data
Vid PogachnikSubmitted by Vid Pogachnik
on Jul 13, 2004 11:58 am

Image ID: 60428
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Object Title: Soca river in its upper part....