Thu Jul 09, 2009, 07:18pm
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Keeper of the HAMMER
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Join Date: Jan 2003
Location: MST
Posts: 27,190
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Quote:
Originally Posted by Nevadaref
Actually, rimstone does exist. Not that I was previously aware of that fact. 
Rimstone, also called gours, is a type of speleothem (cave formation) in the form of a stone dam. Rimstone is made up of calcite and other minerals that build up in cave pools. The formation created, which looks like stairs, often extends into flowstone above or below the original rimstone. Often, rimstone is covered with small, micro-gours on horizontal surfaces. Rimstone basins may form terraces that extend over hundreds of feet, with single basins known up to 200 feet long from Tham Xe Biang Fai in Laos [1]
Rimstone - Wikipedia, the free encyclopedia |
I'll bet Jon Diebler knew that already.
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