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.
• Should I introduce mercury in the centrifugal bowl to aid gold recovery?
Swedes were the first to note variations in the Earth's magnetic field, circa 1640, and they were the first to use the dip needle. They made the first magnetometer in 1870.
I opened the front door of my house at 5:00 AM to find it raining hard and water standing in puddles all over the driveway. Just great! It hadn’t rained for 3 weeks, and on the morning we were leaving for a weekend dredging trip, the weather decided to change.
• Is the Spenceville Wildlife area open to prospecting?
• How do I clean up gold encrusted with iron-sulfides?
The Gold Rush in California called hundreds of thousands of souls to leave their homes to journey to the the far reaches of the West. At first the rich goldfields of the Sierra Nevada beckoned to these adventurous pioneers.
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
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