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02605cam a2200457Ia 4500 |
| 001 |
42030409 |
| 003 |
OCoLC |
| 005 |
20141024110544.0 |
| 008 |
990807s1931 dcua f000 0 eng d |
| 035 |
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|a (OCoLC)42030409
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| 040 |
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|a QPC
|b eng
|c QPC
|d OCLCQ
|d LHL
|d WEA
|d MUU
|d OCLCF
|d FMCGI
|d COM
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| 043 |
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|a n-us-mi
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| 049 |
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|a COMA
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| 086 |
0 |
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|a C 22.11:6515
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| 086 |
0 |
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|a I 28.27:6515
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| 100 |
1 |
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|a Mendelsohn, Albert.
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| 245 |
1 |
0 |
|a Mining methods and costs at the Champion Copper Mine, Painesdale, Mich. /
|c by Albert Mendelsohn.
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| 264 |
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1 |
|a Washington, D.C. :
|b U.S. Dept. of Commerce, Bureau of Mines,
|c 1931.
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| 300 |
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|a 16 pages :
|b illustrations, tables ;
|c 27 cm.
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| 336 |
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|a text
|b txt
|2 rdacontent.
|
| 337 |
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|a unmediated
|b n
|2 rdamedia.
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| 338 |
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|a volume
|b nc
|2 rdacarrier.
|
| 490 |
1 |
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|a Information circular / Bureau of Mines ;
|v 6515.
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| 500 |
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|a "September, 1931."
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| 520 |
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|a This paper, describing the mining practice at the Champion mine of the Copper Range Copper Mining Co., is one of a series of papers on mining methods and costs being prepared by the United States Bureau of Mines. Mining practice at the Champion mine has undergone considerable change during the last four years. Previous to that time the mine was worked by the horiztontal cut-and-fill method, the stopes starting near the shafts and advancing away from them (fig. 2. The floor pillars were mined by the inclined cut-and-fill method, working on the retreat or toward the shafts (fig. 1). At present the mine is being developed to stope entirely on the retreat by sublevel inclined cut-and-fill method.
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| 650 |
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0 |
|a Copper mines and mining
|z Michigan.
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| 650 |
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7 |
|a Copper mines and mining.
|2 fast.
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| 651 |
|
7 |
|a Michigan.
|2 fast.
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| 710 |
1 |
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|a United States.
|b Bureau of Mines.
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| 776 |
0 |
8 |
|i Online version:
|a Mendelsohn, Albert.
|t Mining methods and costs at the Champion Copper Mine, Painesdale, Mich.
|d Washington, D.C. : U.S. Dept. of Commerce, Bureau of Mines, 1931
|w (OCoLC)633064126.
|
| 830 |
|
0 |
|a Information circular (United States. Bureau of Mines) ;
|v 6515.
|
| 907 |
|
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|a .b43218568
|b cug
|c -
|d 141024
|e 230314
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| 998 |
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|a cug
|b 141024
|c m
|d a
|e -
|f eng
|g dcu
|h 0
|i 0
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| 948 |
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|a MARCIVE Comp, in 2022.12
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| 948 |
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|a MARCIVE August, 2017
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| 948 |
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|a MARCIVE extract Aug 5, 2017
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| 994 |
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|a C0
|b COM
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| 995 |
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|a Loaded with m2btab.ltiac in 2022.12
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| 995 |
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|a Loaded with m2btab.ltiac in 2017.08
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| 995 |
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|a Exported from Connexion by CMU
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| 989 |
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|a I 28.27:6515
|d cusgb
|b 1080006008830
|e - -
|f - -
|g -
|h 0
|i 0
|j 18
|k 141024
|l $0.00
|m
|n - -
|o -
|p 0
|q 0
|t 0
|x 0
|1 .i85987591
|