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.River Dredging vs. Creek Dredging—Part I
As I started walking down to the river one chilly morning, the mist was hanging over the calm portions of the water like a white cotton blanket. This scene got me to thinking about why the river was like that—the deep pools, boulder fields, gravel bars, the effects of how much water was moving at any given time along the watercourse—and most of all the relationship all these things have on where I will be able to find gold.
Silverton's Gold
Within this area, about two million ounces of gold and fifty million ounces of silver have been mined. Faults, dikes, veins and fissures that carry the ore form a concentric radial pattern—like spokes on a wagon wheel—around the caldera core.
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.
The Essence of Gold Prospecting
When doing your initial armchair research and selecting potential areas to explore, consider all the indicators, both natural and man-made.
A Return to Silver City, Idaho
...we were able to pull out close to another 3+ ounces of small, angular Silver City gold. This also included several more small nuggets, pieces of wire gold and some quartz-gold pieces—not bad for 4 days with a small sluice.
2015 World Gold Panning Championships
Every Spanish village seems to hold their pride in one unique area of expertise. Pamplona has its bulls, Barcelona its architecture, and gold panning belongs to Navelgas.
Growing Up Gold
If you’re going to successfully detect nuggets you must not only know a little about finding gold and detecting, but you also need to know your own limits, have a dash of luck and a lot of persistence.
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