All Articles
Massive Sulfide Deposits in Oregon
October 2000 by Edgar B. Heylmun, PhD
This article deals with massive sulfide deposits in the Klamath Mountains of southwestern Oregon, but it applies to massive sulfides found in California as well.
Additional articles that might interest you...
Ask The Experts
January 2016
Gold nuggets and serpentine contacts
Gold nuggets and serpentine contacts
Gold Deposits Of South Carolina
September 2008
Gold was first discovered in South Carolina in 1827 in placer deposits near the Haile Mine, which later became the largest gold producer in the southeastern states. The Carolina belt is the most extensive and most productive...
Gold was first discovered in South Carolina in 1827 in placer deposits near the Haile Mine, which later became the largest gold producer in the southeastern states. The Carolina belt is the most extensive and most productive...
The Risks of Mining Overseas
November 2007
Zimbabwe is the latest country to threaten seizure of foreign-owned mining projects.
Zimbabwe is the latest country to threaten seizure of foreign-owned mining projects.
All About Pyrite
January 2015
Most prospectors learn early that pyrite is fool's gold...but the truth is it can be an excellent indicator mineral for gold and in many cases does contain small amounts of gold.
Most prospectors learn early that pyrite is fool's gold...but the truth is it can be an excellent indicator mineral for gold and in many cases does contain small amounts of gold.
$100 Million Lost on Faulty ESA Listing
March 2005
The Preble’s meadow jumping mouse, once seen as a costly impediment to development, is now viewed by the government as a critter that never really existed—and is no longer in need of federal protection under the Endangered Species Act.
The Preble’s meadow jumping mouse, once seen as a costly impediment to development, is now viewed by the government as a critter that never really existed—and is no longer in need of federal protection under the Endangered Species Act.
Gold Deposition and Gradients of Placer Streams—Part I
June 2012
When placer miners from the gold rush era began experimenting with the slope of their sluices, they must have pondered the ideal slope for trapping gold in a creek bed too. Logic suggests the same is true for streams...
When placer miners from the gold rush era began experimenting with the slope of their sluices, they must have pondered the ideal slope for trapping gold in a creek bed too. Logic suggests the same is true for streams...
Mining Investment—Or Fraud?
June 2002
The rapid fall of the stock market created a situation in which investors not only pulled back from traditional equities, assuming dot coms are traditional investments, but many recent arrivals in the world’s...
The rapid fall of the stock market created a situation in which investors not only pulled back from traditional equities, assuming dot coms are traditional investments, but many recent arrivals in the world’s...
Subscription Required:
The Bawl Mill
• A Word from the Editor
• Under the Guise of Environmental Protection—EPA Revealed
• The Centennial Lode and the Centennial Ridge District, Wyoming
• Company Notes
• Picks & Pans—In Search of Nome Creek Gold
• Recreational Dredging on the South Yuba River
• The Trapiches of Chile
• Tales of Liberty Gold
• Drywashing Alluvial Placers
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
