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Showing: 1 to 10 of 73 matches for "calyx drill"  Page   1   2   3   4   5   6   7   8
TITLE Some Notes on "The Davis Calyx Drill". 
SUMMARY Page 1. 250 DAVIS AND KN.Al'F. PAPER No. 38. SOME NOTES ON "THE DAVIS CALYX DRILL."
:BY DAVIS AND KN.Al'F. ... Page 2. SOME NOTES ON "THE DAVIS CALYX DRILL." 251 ...
TITLE Cavability Investigation Of A Stratabound Copper Deposit, Tong Kuang Yu Mine, Shanxi Province, China 
SUMMARY ... This could be correlated with several of the calyx drill holes. ... Figure 4: #5
ore body, 870m level of TKY Mine: A. Location of calyx drill ...
AUTHOR Lacy, W. C.
PUBLISHED 1989
TITLE Mining - The NX Borehole Camera 
SUMMARY ... the small-diameter drill- ings are supplemented generally by more reliable but much
more costly shafts, tunnels, or large- diameter calyx drill holes that ...
AUTHOR Burwell, E. B., Jr. ; Nesbitt, R. H.
PUBLISHED 1955
TITLE A Milestone In Subsurface Exploration - The NX Borehole Camera 
SUMMARY ... the small-diameter drill- ingare supplemented generally by more reliable but much
more costly shafts, tunnels, or large- diameter calyx drill holes that permit ...
AUTHOR Burwell, E. B., Jr. ; Nesbitt, R. H.
PUBLISHED 1954
TITLE Improvements In Mining Practice In The Butte District 
SUMMARY ... below. 4. 4-ft. Calyx drill hole, met bv raise from levei below.- 5. Waste can
be drawn out of chute to cars if needed, or passed to 3800-ft. ...
AUTHOR Borcherdt, E. R.
PUBLISHED 1941
TITLE Improvements In Mining Practice In The Butte District 
SUMMARY ... 4. 4-ft. Calyx drill hole, met by raise from level below. 5. Waste can be
drawn out of chute to cars if needed, or passed to 3800-ft. ...
AUTHOR Borcherdt, E. R.
PUBLISHED 1941
TITLE Papers - Mining - Improvements in Mining Practice in the Butte District (Mining Technology, July 1941) 
SUMMARY ... 4. 4-ft. Calyx drill hole, met by raise from level below. 5. Waste can be
drawn out of chute to cars if needed, or passed to 3800-ft. ...
AUTHOR Borcherdt, E. R.
PUBLISHED 1943
TITLE Papers - Large-diameter Core Drill for Geologic Exploration (T.P. 1000, with discussion) 
SUMMARY ... 1). Bits with M to %-in. walls are generally used, as it is FIG. 1.-LARGE-DIAMETER
CORE DRILL ANDIIP) (INGEBSOLLILAND WS3 CALYX DRILL). FIG. ...
AUTHOR Moneymaker, Berlen C. ; Fox, Portland P.
PUBLISHED 1941
TITLE Diamond Drill, Calyx and Hand Boring by the Victorian Mines Department 
SUMMARY PAPER No.,83. DIAMOND DRILL, CALYX AND HAND BORING BY THE VICTORIAN MINES DEPARTMENT.
BY STANLEY HUNTER. ... Page 3. ON DIAMOND DRILL, CALYX AND HAND BORING. 25 ...
PUBLISHED 1901
TITLE Geology And Development At Friedensville, Pa. 
SUMMARY ... This drilling proved costwise that the Calyx drill was not the tool to use for
exploration in the fractured and weathered formations present. ...
AUTHOR Childs, Mark S.
PUBLISHED 1957
Showing: 1 to 10 of 73 matches for "calyx drill"  Page   1   2   3   4   5   6   7   8

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