Prospecting & Detecting
Refractory Gold Processing
February 2013 by Thom Seal, PhD, PE
After your excitement peaks when you first receive the high gold assay from the vein you just exposed, you ponder how you will extract and sell your gold. You will need to develop a flow sheet for your process to optimize your recovery and minimize your costs and permit requirements.Springtime Sampling In The High Desert
As the ground thaws and dries out and the warmth of spring starts to settle in, it’s time to start afresh with a new prospecting season.
Gold in the San Francisco District Oatman, Mohave County, Arizona
I suspect detailed geological mapping and prospecting would lead to discovery of one or more overlooked gold deposits in the district even though it has been heavily prospected in the past.
Alaskan Gold Adventure
In Chicken I had my first experience with the famous Alaska blue clay, sometimes called the blue layer. The blue layer is where the best fine gold was to be found.
Early Winter Detecting in the Sierras
The mine site consists of river gravels from an ancient channel covering over 20 acres, and the place is covered with very large river rock and small tree overgrowth.
The Hunch
The mysteries of this spot were only just starting to develop. There is nothing but very bland granite-type rocks here, meaning no bold, favorable indicators.
My Great Nevada Adventure
…with renewed determination and a belief in success, I did finally find a nugget. It was there waiting under a bush not 50 feet from my truck.Highbanking for Gold
Pumps can be set up quite a distance away horizontally from the sluice, even hundreds of feet. It will work so long as there is sufficient water at the source where the pump is located. Vertical distance is more of a problem than horizontal distance; 30 to 40 feet is the maximum vertical climb for most pumps.
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