Kategoria BISAC: Technology & Engineering >> Mining

The Great American Turquoise Rush was the period of the largest concerted effort to mine, process and market turquoise in the history of the United States. It started when traditional markets for the clear sky blue Persian turquoise closed and the east coast jewelers, who controlled the jewelry trade in the United States, were forced from necessity to reappraise the quality of turquoise from the southwest. The efforts to control this new market were begun in New Mexico but would expand into other states. This is the true story of that time, largely forgotten or remembered only from oral...

The Great American Turquoise Rush was the period of the largest concerted effort to mine, process and market turquoise in the history of the United States. It started when traditional markets for the clear sky blue Persian turquoise closed and the east coast jewelers, who controlled the jewelry trade in the United States, were forced from necessity to reappraise the quality of turquoise from the southwest. The efforts to control this new market were begun in New Mexico but would expand into other states. This is the true story of that time, largely forgotten or remembered only from oral...

Rockbolting: Principles and Applications brings current theoretical and practical developments in the most widely used support device for underground rock excavations. Today, one cannot find any rock excavation project that does not use rockbolts for rock support. The worldwide annual assumption of rockbolts is in the billions, with pieces applied to mines, tunnels and other types of geotechnical projects for rock and soil reinforcement. The text is based on over 25 years of experience of the author both as academic and practitioner.

The book introduces the principles and...

Rockburst: Mechanisms, Monitoring, Warning and Mitigation invites the most relevant researchers and practitioners worldwide to discuss the rock mechanics phenomenon related to increased stress and energy levels in intact rock introduced by drilling, explosion, blasting and other activities. When critical energy levels are reached, rockbursts can occur causing human and material losses in mining and tunneling environments. This book is the most comprehensive information source in English to cover rockbursts.

Comprised of four main parts, the book covers in detail the...

While Creede, Colorado, had the reputation as a wide-open mining town in the early 1890s ("there is no night in Creede"), Creede's miners went two miles up the hill to nearby Bachelor to drink, gamble and enjoy the ladies of the night. Riches made at nearby silver mines during the day were lost in a night at one of the Bachelor's numerous saloons, gambling halls, and brothels. Among its 1,500 residents, nearly 200 prostitutes plied their trade nightly "Poker Alice" Tubbs, the notorious female gambler who dealt faro and played poker, said that Bachelor "ran ceaselessly at a most turbulent...