Thursday, January 3, 2013

Crevicing Still Remains One of Your Best Gold Recovery Methods (Part 8)

(Trio of old Garrett BFO metal detectors...the model at the bottom was similar to my first "prospecting" machine.)

Bedrock crevicing or gold "sniping" still offers the individual gold prospector and miner a low-cost and potentially remunerative approach to getting the gold. Another attractive component to crevicing is the fact it requires very little in the way of tools and equipment.

8. The Tool and Equipment Factor 

Gold Metal Detectors (Overview)

When I first started swinging a metal detector over three decades ago I was using an old Garrett Beat Frequency Oscillator or BFO that was already a dinosaur of sorts compared to the newer Very Low Frequency/Transmitter Receiver or VLF/TR machines starting to flood the market at the time. The VLF/TRs were excellent machines back then and definitely pointed the way to the future of detecting overall.

Metal Detectors
Gold Concentrates
Gold Pans
 
That said, neither type of these machines was what I'd term an excellent gold getter, with the BFO the least functional from a purely electronic prospecting standpoint. Part of the problem at the time was the insistence on metal detectors being multi-use or "all things to everybody." Machines of that era were designed primarily to handle coin, beach, and artifact hunting with electronic prospecting or nugget hunting thrown in as an afterthought.

Designed to Detect Gold

However, after some spectacular gold nugget finds in the early 1980s like the 875-troy ounce "Hand of Faith" in Australia, the race was on to develop more sensitive and efficient detectors whose primary function would be the detection of natural gold. This wasn't a simple task since these new gold machines had to function well in some of the most highly mineralized or iron-rich gold ground in the world.

Detector manufacturers like Fisher, Whites, Minelab, and Garrett (as well as few others) rose to the challenge and have created successive generations of very high-frequency (VHF)  and pulse-induction (PI) machines over the past 25 years or so designed specifically for detecting placer gold and vein material out in the field. The latest generation of gold detectors is astonishing...gold machines today are efficient, reliable, effective, super sensitive, easy to use, and capable of being deployed in all sorts of mineralized contexts that would have given an older detector fits. (I would've dragged my naked butt down an asphalt highway in mid-Summer to have been able to swing one of these new gold machines back in the Dark Ages when I first started in this mining thing.)

(Fisher's "Gold Bug 2" and the "Gold Bug Pro" are examples of the newer generation of higher frequency gold detectors.)

How valuable are these new machines to a modern gold crevicer or sniper? That depends on a range of factors which I'll address in my next post. Until then, be safe and keep smiling.

If you liked this post, you may want to read: "More on Gold Prospecting: Sulphides and Gold"

(c)  Jim Rocha (J.R.)  2013

Questions? E-mail me at jr872vt90@yahoo.com

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