Gold in Sonora
December 1999 by Edgar B. Heylmun, PhDThe state of Sonora, slightly smaller in area than Utah, lies in-northwestern Mexico, adjoining Arizona to the south. It is characterized, on the east, by a high volcanic plateau, the Sierra Madre Occidental, which forms its boundary with Chihuahua.
It appears that market softness due to a slowing Chinese economy may already have affected precious and base metals quotes.
• California Senator proposes locking up 2.5 million acres with "Wildnerness" designation
• Battle over the rights of people versus fish continues in the Klamath Basin
• Sound science or "fairy tales"
• Azco Mining Inc.
• Hecla Mining Co.
• Canyon Resources Corp.
• Royal Oak Mines
• BHP World Minerals
• Pacific North West Capital
Because quartz and gold may be deposited together across a considerable range of temperatures, not all quartz veins are the same, and there are several different types of gold-quartz deposits.
• ESA changes for the better
• He did say he’d create jobs...
• Biofuels: More harm than good
• Turnpike employees get more than just a free ride
• A sinking ship...
Q: What does MDB&M stand for?
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 • Prospecting With a Magnetometer • 1999 Tables of Content • Lighting the Way Underground 1860-1940s • Millie's Tailings • Picks & Pans: Crevicing & Sniping for Placer Gold • Looking Back • 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