Garrett Electronics - trusted by real miners & prospectors!

Magazine

History & Geology

Benches and Fossil Placers

Unfortunately for us mortal humans, we have a poor perspective on geologic time. When we look at a landscape such as a stream valley, we see it only in two, or at the most, three dimensions. We have poor comprehension of the valley’s fourth and most important dimension—time.

Online access required. Please .

Add a Comment

Additional articles that might interest you...

Rare Silver Nuggets And Their Origins


Silver nuggets have been described as “ultra-rare,” “prized” and “unique.” Naturally occurring silver nuggets are rare enough to suggest caution when purchasing. Fakes have reportedly been produced and misrepresented for sale as genuine specimens.

Picks & Pans: Gold Recovery in Placer Mining Operations


Two of the major factors affecting the profitability of a placer mining enterprise are the relative efficiency of the mining equipment, and the rate and percentage of recovery obtained while conducting mining operations.

The Significance of Nuggets in Placers


Chances are better that both types of gold did not come from the same source. Let's look at the probable conditions to cause two types of gold in a placer.

Why Did This Silver Mine Close? - Pt III


Narrowing down a closure date will allow you to check the commodity price during that time and possibly confirm that a low price, rather than a lack of ore, was the driving force that closed the operation.

The Wild Rush to Find More Cobalt—Part I


While some future cobalt will come from recycling lithium batteries and other products, the coming huge need for cobalt is virtually a perfect storm of heavy demand and insufficient supply.

Using Favorable Rock Types to Find More Gold


The more experienced prospectors know these lesser known spots are the types of places where big finds are still made.

The Verde Copper-Gold-Silver-Zinc District, Jerome, Arizona


When I was a student in the College of Mines at the University of Utah, the Verde district was used as an exploration model for “submarine volcanogenic massive sulfide deposits.” So I looked forward to visiting this district and the town of Jerome in central Arizona in the spring of 2012.

Subscription Required:
The Bawl Mill   • Ask the Experts   • Ask the Experts   • Ask the Experts   • Ask the Experts   • Ask the Experts   • Legislative and Regulatory Update   • Gold Deposits of Montana   • Turning Hobby Mining into Business Mining   • Buying a Mining Claim: Questions to Ask   • Looking for that Hidden Placer   • The Many Facets of Iron   • And the Survey Says...   • $50 Million Swiped in Diamond Heist   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

Free:
The Story Behind the Story

Advertisements

Garrett Electronics - trusted by real miners & prospectors!
Precious Metals Recovery plants and equipment
Fighting to keep public lands open to the public
Specializing in the processing of precious metal ores!
Watch prospecting shows on your computer right now
Free Online Sample Issue