Blasting tests in a porphyry copper deposit in preparartion for in situ extraction

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086 0 ‡aI 28.23:8070
100 1 ‡aSteckley, Robert C.
245 1 0 ‡aBlasting tests in a porphyry copper deposit in preparartion for in situ extraction / ‡cby Robert C. Steckley, William C. Larson, and Dennis V. D'Andrea.
260 ‡a[Pittsburgh, Pa.] : ‡bU.S. Dept. of the Interior, Bureau of Mines , ‡c[1975]
300 ‡aii, 47 p. : ‡bill., graphs, maps ; ‡c27 cm.
490 0 ‡aReport of investigations / Bureau of Mines ; ‡v8070
500 ‡aTables.
504 ‡aBibliography: p. 35-37.
538 ‡aMode of access: Internet.
650 0 ‡aCore drilling.
650 0 ‡aBlasting.
700 1 ‡aD'Andrea, Dennis V., ‡ejoint author.
700 1 ‡aLarson, William C., ‡ejoint author.
710 2 ‡aTwin Cities Research Center (United States. Bureau of Mines)
710 1 ‡aUnited States. ‡bBureau of Mines.
740 0 0 ‡aPorphyry copper deposit.
CID ‡a005980857
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DAT 1 ‡a20150219090554.0 ‡b2019-01-07T19:49:19Z
DAT 2 ‡a2019-01-07T19:00:03Z
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