The landmark law did not stop deadly mining
accidents--a year to the day after Nixon signed it, a coal mine explosion in Hyden, Kentucky, killed thirty-eight people--but its emphasis on enforcing safe practices led to steady improvement.
The Hollinger mine operated underground from 1909 to 1968, and again in the '80s with limited underground mining
and several small surface open pits.
Well, if the mining
company has a good safety record, they can find coverage.
Definitions of data mining
abound, and they vary among practitioners.
company Meridian Gold from opening a mine partly on cyanide concerns.
offers law enforcement agencies potential benefits in the area of tactical crime analysis.
Throughout its 123-year history, Bucyrus has been involved with such highly-publicized mining
operations as the Panama Canal (see "Bucyrus Digs Panama Canal" sidebar) and the 1920 groundreaking for United Artists Studio in Hollywood.
While longwall mining
is most common in Pennsylvania, it's practiced in 10 other states.
Unlike many other commercially available data mining
tools, the NAG Data Mining
Components are designed to be incorporated into the user's application rather than requiring the user to learn a new interface to gain access to additional techniques.
From an underground mining
perspective, receding-face expenditures have included:
El Teniente's North American proprietor, Kennecott's Braden Copper Company subsidiary, like mining
companies and industrial employers around the world, implemented a set of paternalist social welfare policies, which complemented traditional coercive forms of labor control, to combat high levels of labor force turnover, the endemic lack of worker productivity, and the miners' unruly rebelliousness.
The legacy of hard-rock mining
in Montana is not something schoolchildren have to learn from textbooks.