Mineralized Calderas in Colorado
May 2002 by Edgar B. Heylmun, PhDA caldera is a large circular volcanic depression caused by collapse due to the removal of molten magma from an underlying magma chamber. The removal of magma is due to explosive venting of lava and pyroclastic material.
PDAC’s (Prospectors and Developers Association of Canada) annual convention held each spring in Toronto, Ontario, Canada is generally regarded as the largest and most impressive annual gathering of the mining industry in the world.
Out of the blue Archie mentioned, "I was dusted." My dad misunderstood and thought Archie had developed silicosis, then known and feared as "miners lung."
Having learned to proceed with some skepticism regarding the public’s interpretation of events, we offer the following forecasts for the coming year...
The suspect brought a duffel bag with him that he filled with two employee cellphones, wallets, cash from the register, gold nuggets and several trays of jewelry.
Q: I am in the process of filing an appeal with my lawyer, but am seeking more “expert” advice in the arenas of “mining claims” and BLM jurisdiction.
Q: Can you please tell me about diamond fluorescense?
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