| Kimberlite pipes are cool. They are basically big shots of magma from deep in the crust. They tend to be very round pipes that go down and down and down. Most are not diamondiferous but all are cool. The material that forms the main body of the pipe is usually quite soft and in nature they usually present as small perfectly round shallow lakes. This is because they tend to erode faster than the material around them.
Its also kinda neat that once you reach the economic limit for the surface mine they follow these puppies way far underground. They usually keep going down to the limit of what you can feasibly work depth wise. Occasionally they will terminate abruptly at some depth but that is the exception rather than the rule.
Once again kimberlite pipes are cool! |