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Mahr tunnel encounters 20,000-G.P.M. flow

Note on drainage tunnel of Cerro de Pasco Copper Corp at Morococha, Peru; illustrations and brief text describing condition at about 23, 183 ft from portal.

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Mahr tunnel encounters 20,000-G.P.M. flow

Note on drainage tunnel of Cerro de Pasco Copper Corp at Morococha, Peru; illustrations and brief text describing condition at about 23, 183 ft from portal.

Mahr tunnel encounters 20,000-G.P.M. flow

Note on drainage tunnel of Cerro de Pasco Copper Corp at Morococha, Peru; illustrations and brief text describing condition at about 23, 183 ft from portal.

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Check availability in my library

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Document information

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Title:

Mahr tunnel encounters 20,000-G.P.M. flow

Additional title:

Eng Min J

Published in:

Engineering and Mining Journal ; 134

Publication date:

1933

Size:

5 pages

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Mines and mining

© Metadata Copyright Elsevier B. V. All rights reserved.

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