Prospecting With a Magnetometer
December 1999 by Edgar B. Heylmun, PhDSwedes 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.
It all started with a phone call from my friend and prospecting partner Pat Keene. He told me that he knew of an investor who was just starting out in the gold industry and was looking for a gold consultant to go to Africa to prospect and analyze a 400 sq. mile concession in the middle of the Congo rainforest. I waited for the “just kidding” line...
…there is now concrete evidence that growing numbers of investors and other concerned observers are now turning to gold as a storehouse of value in these potentially troubling times.
Carbon, activated charcoal, or “char,” as some old timers refer to it, can be an assayer’s nightmare.
Robert Sanregret—Attorney at Law
Western Mining Council
National Association of Mining Districts
Q: Is there a correlation between fault zones and mineralization of economic metals?
...we were able to pull out close to another 3+ ounces of small, angular Silver City gold. This also included several more small nuggets, pieces of wire gold and some quartz-gold pieces—not bad for 4 days with a small sluice.
• Republican bill would reopen Grand Canyon withdrawal
• Obama recommends additional fees and taxes on miners
The Bawl Mill • Over the Divide • Our Readers Say • Desert Phone Trashed • ICMJ Elected Prospecting Magazine of 1999 • Advertising Manager Leaving ICMJ • Guest Editorial—California "Special" Dredge Permits in Jeopardy • The Search Continues • Guest Editorial: U.S. Government—Like Nobody's Business • Circulation and Collections Manager Leaving ICMJ • Company Notes • House Chair Requests Records on Forest Decision • BLM Wants to Withdraw South Pass Public Land • Silverton Preserving Lofty Symbol of Mining Era • Hijackers Make Off With 660 Pounds of Gold • 1999 Tables of Content • Lighting the Way Underground 1860-1940s • Millie's Tailings • Picks & Pans: Crevicing & Sniping for Placer Gold • Looking Back • Gold in Sonora • Forest Service Boss Quits in Bull Trout Flap • Melman on Gold & Silver • European Gold Miners Seek Clarification Letter • Mining Stock Quotes and Mineral & Metal Prices • Squeezing Diamond Into Graphite