Large Scale Mining
Polymetallic Skarn Deposits
July 2020 by Dean Delahaut
Polymetallic skarn deposits are an interesting class of deposits that can contain a number of different types of metals.
What Is Your Grade?
After paying for the mine fleet, mill capital, supplies, fuel, power and labor, at today’s metal prices, does this mine make a profit?
Modern Mining Reclamation
A study showed that between 1930 and 1980, only a quarter of one percent of the land in the United States was used in all mining applications combined, including surface mining, tailings disposal, underground mines, and all mineral processing facilities.
Vehicles Equal Moving Deductions for Mining Operations
Knowing how and when to deduct the cost and expenses of the vehicles used in the prospecting or mining operation can have significant tax implications.
Appeals Court OKs Permits for Upper Peninsula Mine
The $800 million project will provide 300 jobs during production. It will be the only US mine where nickel is the primary targeted mineral, with about 360 million pounds to be extracted.
Prospecting for Copper Ores—Part I
Copper is one of the metals that form the backbone of our modern civilization. Copper is an essential part of every computer, cell phone, automobile and household appliance.
Feds Deny Lease Renewals for Minnesota Mine
Two longstanding mineral rights leases that are critical for a proposed large underground copper-nickel mine upstream from the Boundary Waters Canoe Area Wilderness in northeastern Minnesota will not be renewed, two federal agencies announced…
Gold and Rare Earth Elements in New Mexico
We import nearly all of our REEs from China, so it’s critical that we find and continue to develop domestic resources of these elements.
Subscription Required:
The Bawl Mill
• Ask The Experts - Can GPR be used for lode prospecting?
• Ask The Experts - How do I extract gold from pyrite?
• Ask The Experts - Should I dig faint sounds with no indicator bars while detecting?
• Ask The Experts - Should the detector sound on iron and nickel in a gold area?
• Hard Rock 101: Micro Blasting
• Sluicing and Detecting Downstream
• Tips and Tricks
• Gold Prospecting for Better or Worse: Does Caliche Grow?
• 10 Keys to Prospecting Like A Pro
• Practical Advice for Milling Hard Rock Ores
• Speed Prospecting for Hard Rock Gold
• Forrest Fenn Treasure Chest Finally Found?
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
