Professional Equipment for Serious Detectorists!

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...

The Goldfield Mining District, Nevada—Part II


The majority of the gold produced in Goldfield has come from ores that are close enough to the surface to be oxidized by the air. This oxidized ore is normally a soft, shattered, earthy material usually stained yellow to brown by oxides of iron.

Gangue Minerals - What Do They Tell Us?


There are a large number of different kinds of gangue minerals, and each of them has its own tale to contribute to the story of the chemistry and geology of a deposit.

The Struggle to Reopen Alaska's Largest Gold Mine


The historical AJ mine, located east of Juneau, Alaska, was considered the largest gold mine in the state at one time. Joe Juneau and Richard Harris struck gold there in 1880, and it has been more recently known as a tourist destination.

Confluence Placers


Confluences of placer streams are well known as concentration sites for heavy minerals. The basic reason is that...

Unique Rare Earth Mine in Texas


Exploration for and prospecting in search of similar deposits should focus on rhyolite bodies located in fluorite-bearing areas.

Alaska's Cripple Creek Mining District


If developed with metal detecting in mind, this virgin ground could be a bonanza for nugget hunting.

Critical Metals: Lithium


Prospecting for lithium deposits can take a number of different directions, because this metal can be extracted from a variety of geologically differnet sources.

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

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