Friday, November 27, 2009

Geology of Idado - PFF




Happy Postcard Friendship Friday, hosted by Marie at the French Fractrice.

I am NOT going out shopping on Black Friday. We are decorating for Christmas. Which has little to do with the state of Idaho, but that is the postcard for today.
This is standard sized postcard, published by the Idaho Geological Survey. After scanning it, I seemed to have misplaced it!
The Geology of Idaho is similar to the states around it - after all, geology does not stop at the state line. The pink color represents a huge intrusion of granite, now exposed at the surface. The green and olive colors represent sedimentary rocks, uplifted during mountain building, just as in Montana, and Nevada. The bright blue represents Columbia River basalts. The broad yellow is another basalt flow. This area has developed good soils for growing potatoes.

Time to go, the kids are fighting. Happy PFF!
Viridian

7 comments:

Beth Niquette said...

I absolutely adore this map--I love visiting the state of Idaho. Happy PFF!

postcardparadise said...

The lower right section looks very much like camo-print. I used to live in the sedimentary rock part of this state in a place made famous by the Idaho Spud candy bar...a geological-looking chocolate marshmallow covered with chocolate and coconut.

Mary said...

I am becoming jealous of your geology postcards. A great reason to visit on PFF!

Postcardy said...

Happy Day After Thanksgiving.

MrCachet said...

I see Montana is sticking his nose in Idaho again...

Sheila said...

I hope you had a good time decorating for Christmas! My education continues - I've heard of the potato growing in Idaho, and now I can relate it to the geology.

maryt/theteach said...

Never been to Idaho... but I do know that's where we get our potatoes! Thanks for sharing the geology! I didn't shop of Black Friday eaither! :)

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