Gold Geochemistry: Where Does Gold Come From?
February 2021 by Chris Ralph
Prospectors often wonder why gold deposits in veins like it does. Why is one vein rich while another is barren, even though they are only a few hundred feet apart?
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.
Unfortunately, not all the gold that we prospectors find is pretty, or appealing to the eyes. They are not all nice, bright, shiny nuggets with lots of character that carry high collector value.
The amount of gold in the traces from the low-grade scattered veinlets may be much more than the traces from the small but rich pocket, at least until the pocket hunter closes in on the rich pocket. Further confusion arises if the prospector stumbles across a placer deposit on one of the higher peaks.
• Re: Tyrie's Roadway Nugget
• Re: Are Permits Needed for Highbanking in California
Much more information can be gained from that single source and gives you ideas on the gravels for dry washing or where the nuggets may lie for metal detecting
The Wyoming Geological Survey released an online interactive map...
The big interest to prospectors thinking about the effect of erosion is not what might happen long into the future, but what they might find in the rivers later this summer when the water levels go down.
The Bawl Mill • Ask The Experts - Where did the gold go? • Ask The Experts - True north or magnetic north? • Ask The Experts - How do I avoid claim jumping? • Ask The Experts - Are closed placer and lode claims worth my time? • Goal Setting and Rock Tossing • Principles of Designing Your Mill Production System, Part II: Mill Design • Gold Prospecting for Better or Worse: A Claim to Die For • Tips and Tricks: How to Make Your Own Gold Bars Without Burning the Place Down • Understanding Rock Formations: Petrology for Prospectors • Minnesota Lawmakers Move to Stop New Mines • Drywashing for Desert Gold—Part I • Seven Troy Ounces of Premonition? • I Was Looking for Gold But I Found Jade • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices