Treasure Talk

Treasure Talk

Posts for October 2013

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A Tale of Greenstone Gold

October 09, 2013 10:10am

There are a number of different types of geologic settings that lead to the formation of gold nuggets. Some are rare, and some occur at many places around the world. One of the more common is associated with greenstone belts. Not every green colored rock is a greenstone, and what geologists are normally talking about with greenstone is a rock that once was black basalt on the ocean floor, but which has been subjected to the forces of heat and pressure that has changed the rock (metamorphic forces geologists call it).

Posted by Chris Ralph on October 09, 2013 10:10am | 1 Comment
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