Glaciers and Placer Gold Deposits
June 2010 by Jim HalloranHere we examine where and why placers are found in glaciated landscapes from the Ice Ages.
Just One More Time
We chose this particular area because an old channel had run here at one point and had been heavily worked on top of a mountain hilltop. Erosion patterns cut deeply on each side, leaving the channel exposed. The erosion cut sharply, dropping into ravines far below.
Our Readers Say
• "...too many take the easy way out..."
• " Gold in Arkansas" was especially helpful to me.
Ask The Experts
• Is there a single book that covers most aspects of mining and recovery?
Legislative and Regulatory Update
• PLP continues the fight for miners' rights
• Oregon miners fight back
• Bills address strategic minerals
Shaker Tables for Processing Hard Rock Ores
Most placer equipment is really made with gold in the 30 and larger mesh sizes in mind, though if carefully used can often get reasonable recovery down to the 50 mesh size.
Pacific Island Gov'ts Focus on Undersea Mining
Pacific Island nations have started devising regulatory laws to help create a new industry in this near-resourceless region: mining the sea floor.
The Bawl Mill • Legislative and Regulatory Update • Sluicing at Rocky Bar, Idaho • Nine Pound Nugget Found In Northern California! • How Much Gold Is In My Gold-Quartz Specimen? • Ask The Experts: Can you help me identify these items? • Getting The Most Value From Your Gold-Quartz Specimens • Highbanking and the House Rock • Fix or Replace, Depreciate or Write-Off • Melman on Gold & Silver • Mining Stock Quotes & Mineral and Metal Prices
Update on Oregon, Idaho and California Suction Dredge Permits • ECU Silver Mining Continues The Legacy