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The Bawl Mill
May 1999 by Kenneth Harn
• Snake fence upsets environmentalists...• Job appointments based on credentials, not connections, says the governor...
Additional articles that might interest you...
Oregon Dredgers Receive Threats From Environmentalists
June 2004
Oregon dredgers have been receiving notices of intent to sue for violations of the Clean Water Act (CWA) from the Northwest Environmental Defense Center (NEDC).
Oregon dredgers have been receiving notices of intent to sue for violations of the Clean Water Act (CWA) from the Northwest Environmental Defense Center (NEDC).
Ask the Experts: VMS ore
August 2012
Q: Are there any mills that handle VMS ore?
Q: Are there any mills that handle VMS ore?
ICMJ 10th Annual Photo Contest Results
January 2001
Gold Deposits in Skarn
July 2003
Skarn consists of coarse-grained calcium, magnesium, iron, and aluminum silicates formed by hydrothermal solutions, which replace limestone or dolomite near the contact with an igneous intrusion. The contact metamorphism is usually caused by an intrusion such as quartz monzonite, granodiorite, or similar rock type, which may or may not be mineralized.
Skarn consists of coarse-grained calcium, magnesium, iron, and aluminum silicates formed by hydrothermal solutions, which replace limestone or dolomite near the contact with an igneous intrusion. The contact metamorphism is usually caused by an intrusion such as quartz monzonite, granodiorite, or similar rock type, which may or may not be mineralized.
Greenstone
August 2004
Greenstone is a hard, tough, altered igneous rock, usually dark green in color. The term “greenstone” has been loosely applied to all greenish rock, including peridotite, dunite, jade, serpentine, and even hydro thermally altered rocks in mining districts. True greenstone is...
Greenstone is a hard, tough, altered igneous rock, usually dark green in color. The term “greenstone” has been loosely applied to all greenish rock, including peridotite, dunite, jade, serpentine, and even hydro thermally altered rocks in mining districts. True greenstone is...
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