All Articles
Epithermal Ore Deposits Associated With Tertiary Volcanism—And the Feasibility of Metal Detecting for Them
December 2000 by Jim Straight
Epithermal ore deposits are common in regions of late volcanic activity, especially areas associated with Miocene and later Pliocene extrusive volcanics that have not been deeply eroded since the ore was deposited. Many are simple fissure veins, but stock-works and ore-pipes are also common.
The Bawl Mill
• Insecurity issues?
• Seven experts...and a little bit of editing
• November can’t get here soon enough
Understanding Skim Bar Placers
Perhaps the most notable thing about skim placers is that they form on the top surface of gravel bars, as opposed to coarser gold placers where the weight of the gold particles allows the gold to settle down on or near bedrock.
Legislative and Regulatory Update
• SREP appeals
• No decision yet in Karuk case
• Right to Access bill
How To File A Mining Claim
Filing claims is actually quite easy, though there are a number of pitfalls that you should watch out for. Over the years, I have made just about every mistake you can with a mining claim, and have learned a few things to watch out for along the way.
The Bawl Mill
- Souvenirs to die for…
- Honey, where’s that photo of our 500-pound emerald?
- Something to write about…
Emails Confirm--FBI Was Looking for Gold at Pennsylvania Dig Site
FBI agents were looking for an extremely valuable cache of fabled Civil War-era gold—possibly tons of it—when they excavated a remote woodland site in Pennsylvania three years ago…
Picks & Pans: Dredging and Detecting in Sierra City
Every year for the past several years I have taken a prospecting trip to Sierra City, California, to dredge on a friend’s claim. Sierra City is a historic gold rush town of a little more than 200 persons. Known mostly for its rich lode mines, it also had...
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The Bawl Mill
• Letter to the Editor
• Potaro District, Guyana
• World Gold Council Launches $3 Million Ad Campaign
• Prospecting With Color
• Prospecting for Platinum in Wyoming
• Picks & Pans: More Big River Dredging in Northern California
• A Changing Diamond Industry Looks to Canada for Growth
• History of Mining—Bradshaw Mountains, AZ—Part II
• Company Notes
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
