Prospecting & Detecting
Prospecting Underground: Use Caution
April 2011 by Don Robinson
In underground placer work, the contact point of the bedrock tunnel and the gravel is a very weak point and always has to be timbered. The bedrock here is thin, fractured, and the gravels loose from many years of oxidizing.Gold Indicators—What to Look for in the Goldfields
Some of the items that I’m going to go over are outcroppings, ditches, exploratory trenches and contacts/surface materials. I am going to speak about each of the above items in as much detail as I can, and then towards the end of this article I will tie them together.
Gold in Unlikely Places
Detectors have been around for decades now. And with thousands of them swinging, many of the best or at least most likely nugget places have seen a swinging coil. The part that amazes me is that so many nuggets still get pulled out of these seemingly pounded places.
Common Mistakes of the New Detectorist
Detecting is not very complicated and the rewards can be tremendous. The difference between success and fruitless toiling can be remedied by a few small adjustments and a whole lot of perseverance.
Eolian Placer Gold
I would first like to mention that I am not a geologist. I have, however, spent the last 8 years intently searching for gold nuggets with a metal detector. I have found gold in numerous locations, and in several different types of gold deposits.
Detecting Wet Ground Yields More Fun Than Gold
We all continued over to another location at the top of a massive placer operation. Arriving at the draw, I showed everyone where gold had been found before and we all began detecting.
The Basics of Exploration Leases and Contracts—Part I
Let’s take a look at these important property aspects individually, because they all affect the value of a property and how much mining companies might or might not be interested acquiring it.
Picking Our Way Through Bedrock
Once again the coil was put over the spot but the target was in the pile now. I pinpointed, grabbed a handful of dirt and began sprinkling it over the coil until I heard that mild thud.
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• Mud Men: Pocket Miners of Southwest Oregon Part III
• Legislative and Regulatory Update
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