Search Results

Search Results for "hard diabase"

Search Again

Organization / Society AIME (196) AUSIMM (29) DFI (6) DOI (1) EPA (1) NIOSH (78) SAIMM (12) SME (95) TMS (2) All News Jobs Blogs Research

Showing: 1 to 10 of 420 matches for "hard diabase"  Page   1   2   3   4   5   6   7   8   9  next TITLE Construction Technique Used To Build The Drilled Shafts For The Victory Bridge  SUMMARY ... Below the decomposed rock was an extremely hard layer of diabase. ... In most cases seating the casing in the dense overburden above the hard diabase. ... AUTHOR Hardell, T. Jason PUBLISHED 2005 TITLE Construction Of Longueuil "Centre" 4.0 M Diameter Interceptor In The Montreal Area  SUMMARY ... to the discs. The picks, on the roadheader, on the other hand, were very susceptible to shearing off when cutting into hard diabase intrusions. ... AUTHOR Wagner, John R., Mr. ; Scarabelli, Rudy, Mr. PUBLISHED 1987 TITLE Inclined Blastholes for Pit Wall Control Using Tamrock 4000 Drill  SUMMARY ... MPa. The waste rock is hard and abrasive, especially the diabase dikes which intrude into the elongated shaped ore- body. These ... PUBLISHED 1989 TITLE New York Paper February, 1918 - Phosphate in Egypt  SUMMARY ... the watershed, underlain by rocks like granite, serpentine, porphyry, and diabase, one comes ... The uppermost bed of the formation is a very hard limestone (1 m ... AUTHOR Cortese, E. PUBLISHED 1918 TITLE Minerals Beneficiation - Autogenous Grinding of Disseminated Copper Ores  SUMMARY ... Utah Composite Ray Schist Ray Diabase Chino, Hard and Blocky Chino. Soft and Fine ... Estrella Hard & Blocky Ray Diabase Hlgh Hard & Blocky, Mine A, Quartzite ... AUTHOR Bachman, W. D. ; Last, A. W. ; Nabbs, S. W. PUBLISHED 1971 TITLE Asarco Mineral Creek Tunnel  SUMMARY ... The 5.74 m (18.83 ft) hard rock TBM will break into the ... metamorphic formations including volcanic tuff, soft volcanic ash, massive diabase, fractured quartzite ... AUTHOR Yanagisawa, Shane PUBLISHED 2001 TITLE Discussion - Shaft Sinking Today– A Boring Business Tomorrow - Technical Papers, MINING ENGINEERINS, Vol 33, No, 12 Dec. 1981, PP. 1705-1710  SUMMARY ... The Idaho No. 2 shaft cut through hard gabbro, diabase dikes, soft serpentine, very incompetent ankeritized serpentine and a strong fault zone. ... AUTHOR Grieves, Maurice PUBLISHED 1983 TITLE Discussion - Shaft Sinking Today - A Boring Business Tomorrow – Technical Papers, MINING ENGINEERS, Vol. 33, No. 12, Dec. 1981, pp. 1705-1710 – Grieves, Maurice  SUMMARY ... The Idaho No. 2 shaft cut through hard gabbro, diabase dikes, soft serpentine, very incompetent ankeritized serpentine and a strong fault zone. ... AUTHOR Waterman, G. C. ; Hawes, W. E. PUBLISHED 1983 TITLE Underground Mining - Use of Resins in Mine Roof Support  SUMMARY ... high initially. The rock involved is a hard norite (diabase) which is usually competent but has "block cleavage". This roof has ... AUTHOR McLean, D. C. ; McKay, S. A. PUBLISHED 1964 TITLE Relief Canyon Gold Deposit : An Explanation of Epithermal Geology and Exploration  SUMMARY ... of more than 200 m (655 ft) of inter- bedded units of thinly parted ar- gillite, hard gray to ... Diabase dikes were also en- countered in a number of drill holes. ... AUTHOR Wittkopp, R. W. ; Parratt, R. L. ; Bruce, W. R. PUBLISHED 1984 Showing: 1 to 10 of 420 matches for "hard diabase"  Page   1   2   3   4   5   6   7   8   9  next Search Again