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Great Bear Resources Ltd. GTBDF


Primary Symbol: GTBAF

Metals & Mining Gold
Great Bear Resources Ltd. is a Vancouver-based gold exploration company focused on advancing its 100% owned Dixie project in Northwestern Ontario, Canada. A significant exploration drill program is currently underway to define the mineralization within a large-scale, high-grade disseminated gold discovery made in 2019, the LP Fault. Additional exploration drilling is also in progress to expand and infill nearby high-grade gold zones, as well as to test new regional targets.


OTCQX:GTBAF - Post by User

Great Bear Resources Ltd. > Open pit
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Comment by ChickenSoupon Oct 18, 2019 5:38pm
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Post# 30245794

RE:Open pit

RE:Open pitShort answer:  100m to 150m is the maximum open pit for standard deposit.  After that, you usualy use an in-pit ramp or sink a shaft.  So open pit is possible.

Long answer:  The first answer is bull$hit.  It all depends on the economics.  If you can get your hands on the block model and perform a  Lerchs-Grossmann optimization on it you will have your ultimate pit depth.  You then compare the openpit economics with the UG economics to get the breakeven depth.  Finally, you adjust that depth based on the operation risk tolerance.  Usually, the operation favors/starts w/ open-pit to access cash flow ASAP to pay the hungry bankers...
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