EXPLORATION IN THE SOUTH WALES COALFIELD.

被引：0

作者：

Allen, M.J. ^{[1
]}

机构：

[1] NCB, NCB

来源：

Mining Engineer London | 1986年 / 145卷 / 297期

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摘要：

The financially 'correct' level of exploration is discussed and quantified for South Wales. It is suggegsted that the rate of exploration should be increased to a level representing 1% of mining costs in this coalfield.

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页码：561 / 566