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Orbicular Diorite

It consists of granite balls covered with hornblende and then encased in a granite matrix.

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Martin Rundkvist Dr. Martin Rundkvist is a Swedish archaeologist, journal editor, public speaker, chairman of the Swedish Skeptics Society, atheist, lefty liberal, bookworm, and father of two.

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« Goldhahn vs. Berntsson Fight Resolved | Main | More Vittene Gold »

Orbicular Diorite

Category: NOIBNSweden
Posted on: June 26, 2007 8:50 AM, by Martin R

Here's some geology for a change.

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At Slättemossa in the province of Småland, southern Sweden, are found ice-polished outcrops of orbicular diorite ("Napoleonite"). This rock consists of granite balls covered with hornblende and other minerals and then encased in a granite matrix. When the inland ice ground the rock down, a smooth grey surface covered in darker circles resulted. Pretty striking, as seen in the photographs by Anders Möller! Anders and Inger are badass geocachers, having found nearly 1400 caches and hidden more than 200.

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Visit the site at N57° 22.930 E15° 36.100. It's not far from Målilla, where Mr. Chin's store is! Remember to buy only green things from him, if possible.

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Comments

1

You've just been tagged with a blog meme: http://tinyurl.com/25ts73

Enjoy!

Posted by: TW | June 26, 2007 4:12 PM

2

thank you . .

Posted by: dudul | September 4, 2008 4:00 AM

3

What'''it this???

Posted by: G-Force46 | October 8, 2009 7:53 AM

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