August 2001 by Edgar B. Heylmun, PhDGold and other valuable metals are often deposited in breccia and rubble formed by flat or gently-dipping faults. Such faults are commonly found in areas of crustal stretching caused by the movement of tectonic plates. Flat-faults are especially common in southeast California, southern Arizona, and northern Sonora, Mexico. However, they can be present anywhere that crustal stretching has occurred.
We started planning for this trip last year, after we left Ganes Creek, Alaska, and headed back to civilization. I found 4.75 ounces of very nice nuggets and the group had a total of 47.47 ounces for the week.
Wall-rock (country rock) alteration is found in all hard-rock mining districts and has been caused by hydrothermal solutions in the past history of the region. The zones of alteration have a bearing on where one might drill for ore bodies. The weekend prospector does not have the tools nor knowledge to block out ore deposits, but he can narrow down his search dramatically by understanding the zones of wall-rock alteration that he sees.
We have an opportunity to make significant and substantial changes to provide relief for small miners with the Trump Administration and the current makeup of Congress. We realize the time to act is now, but we need your help.
Q: ...He consistently comes up with values much higher on the same ore samples.
• Take a seat
• Hold everything!
• Flying under the radar
• Last minute spending spree
• California suction gold dredging update
• Governor opposed to Arizona lands withdrawal
• BLM locks up lands in Nevada
• What's worth picking out of the pan besides gold?
The Bawl Mill • Our Readers Say • The Public Process—Getting Involved and Making a Difference • Pacific Northwest Miners Request Help • USFS Roadless Comments Reopened • Basic Drywashing Principles • Fields of Gold • Picks & Pans: All That Glitters Pans Out Well! • De Beers Undergoes Overhaul • Gold in Michigan • Update on the West Mojave Desert Planning Area • 2001 Inductees to the National Mining Hall of Fame • Company Notes • The Spanish Silver of Mowry • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices