History & Geology
Alluvial Paystreaks
November 2018 by Matteo Oberto
The gravels in contact with the bedrock or false bedrock base are often the richest. The same facts apply to the alluvial paystreaks that are formed on gravel bars; the lowest level of the gold-bearing gravel is normally the richest.
The Bawl Mill
• Do as I say, not as I do...
• By the numbers...
$50 Million in Gold From 1857 Shipwreck Approved for Sale
The gold is all for sale. Just one tiny coin alone could go for $1 million because of its combination of rarity and the history behind it...
The Birimian Greenstone Belts of West Africa
The country we were to visit was Burkina Faso, a small country about the same size of my home state of Nevada with about 10 times more people. The second day I was in Africa, we went out to the goldfields for the first time.
Green Valley Gold District, Payson, Arizona
Most gold-bearing quartz veins found in the district were fracture fillings in faults enclosed by crushed quartz zones along their margins. Since the host rocks were often extensively weathered, portions of the veins stood out as positive, resistant outcrops. The gold-bearing veins ranged from a few inches wide to the vein at the Gowan mine that was as much as 12 feet wide. Gold in Quartz
Because quartz and gold may be deposited together across a considerable range of temperatures, not all quartz veins are the same, and there are several different types of gold-quartz deposits.
Why Haven't They Mined This Claim?
Improvements in mining equipment and techniques, along with a higher gold price, make many mining properties profitable today that may not have been in the past.
Epithermal Gold and Silver Deposits
Epithermal deposits form in the ground at shallow depths. They are popular with prospectors because can yield very rich deposits and they are widespread in the Western US.
Subscription Required:
The Bawl Mill
• Ask The Experts - Skim Bar Placers article clarification
• Ask The Experts - Is LR2000 working correctly?
• Ask The Experts - What claim papers am I required to file at the county level?
• Fall Drywashing—Just the Right Time of Year
• Humble Beginnings
• Understanding Large Gold Deposit Types: Discovering New Mines
• Roads to Nowhere
• Treasure Hunters Challenge FBI Over Dig for Civil War Gold
• Out of the Ashes—New Access to Gold
• Arizona Prospector Rescued from Mine Shaft
• California State and US National Gold Panning Championships
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
Free:
Legislative and Regulatory Update
• Gold Prospecting for Better or Worse: Doomed from the Start
• PLP Update
