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47. Case History of Mineral Discovery of Yakobi Nickel-Copper Deposit, Yakobi Island, Southeast Alaska ? History
By Pat DeWilliam
The Yakobi nickel-copper deposit is located essentially at tidewater in the east-central part of Yakobi Island, about 16 1 airline km (100 airline miles) west of Juneau, and can be reached by float pl
Jan 1, 1991
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48. The Eureka Mining District, Nevada
By T. B. Nolan, R. N. Hunt
In terms of present metal prices, analysis of extant records of the Eureka district indicate past production of the magnitude of $200,000,000 in recovered silver, lead, and gold. Production to date ha
Jan 1, 1968
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49. Iron Ore Deposits of the Iron Springs District, Southwestern Utah
By J. Hoover Mackin
The iron ore bodies of the Iron Springs district are replacement deposits of magnetite and hematite in Jurassic limestone around the borders of three intrusions of quartz-monzonite porphyry. Productio
Jan 1, 1968
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5-strand Slitting Process: Implementation And Results
By Andrea Zanon
Slitting processes have been used for many years to increase the productivity of smaller diameter deformed bars, without making major investments in the rolling mill. This technology is used mainly fo
Oct 30, 2017
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5. Discovery of Bougainville, Papua New Guinea
By R. J. Cornelius
Gold with minor associated copper mineralization in the area of what is now the Bougainville porphyry copper deposit has been known since the 1920s and was probably known in German colonial times, pre
Jan 1, 1991
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5. Geology of the Friedensville Zinc Mine, Lehigh County, Pennsylvania
By William H. Hallahan
The Friedensville zinc mine of The New Jersey Zinc Company is located about four miles south of Bethlehem, Pennsylvania in the Saucon Valley, an infolded and down faulted block of Cambro-Ordovician ca
Jan 1, 1968
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51. The Main Tintic Mining District, Utah
By Hal T. Morris
The main Tintic mining district in central Utah has produced approximately 13,500,000 tons of ore, containing silver, lead, gold, copper, zinc, and other metals, valued at more than $315,000,000. More
Jan 1, 1968
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52. Mountain City Copper Mine, Elko County, Nevada
By Edward C. Stephens, Robert R. Coats
High-grade copper ore was discovered in 1932 in the long-dormant Mountain City (Cope) mining district, Elko County, Nevada. From 1932 to 1947, the one producing mine in the district, the Mountain City
Jan 1, 1968
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53rd Annual Conference of Metallurgists - Conference Proceedings
"WELCOME/BIENVENUE TO THE COM 2014 IN BEAUTIFUL VANCOUVER!On behalf of the organizing committee, I would like to extend my thanks to you for participating in this year’s Conference of Metallurgists. R
Jan 1, 2014
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55. Geology of the Spar Mountain Beryllium District, Utah
By Daniel R. Shawe
Large tabular beryllium deposits in waterlaid rhyolitic tuff at Spor Mountain, Utah, contain the world's largest known resources of beryllium (as bertrandite). The district also has produced fluorspar
Jan 1, 1968
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58. Ore Deposits of the Central Mining District, Grant County, New Mexico
By William R. Jones, Robert M. Hernon
This report on the Central mining district of New Mexico is the partial culmination of an intensive U.S. Geological Survey effort dating back some 30 years. Robert M. Hernon went to Silver City in 194
Jan 1, 1968
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59. The Geology of the Iron King Mine
By Arthur R. Still, Paul Gilmour
The ore deposit of the Iron King mine occurs in a group of steeply-dipping metamorphosed eugeosynclinal volcanic and sedimentary rocks of Precambrian age. Within this sequence, the ore deposit lies at
Jan 1, 1968
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6. Computer-Based Consultation System for Mineral Exploration ? Introduction
By Peter E. Hart
The search for mineral deposits is a difficult high-risk enterprise whose likelihood of success is influenced by a great many factors. Among the most important of these factors are the knowledge and j
Jan 1, 1979
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6. Computer-Controlled Truck Dispatching in Open-Pit Mines
By Robert F. Hauck
This chapter discusses a new technology for computer control in open-pit mine operations: the real time automatic dispatching of manually driven trucks to shovels. The monitoring of truck activity is
Jan 1, 1979
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6. The Grace Mine Magnetite Deposit, Berks County, Pennsylvania
By Samuel J. Sims
The Grace mine magnetite deposit, located 2 miles north of Morgantown in Berks County, Pennsylvania, was discovered in 1948 by an aerial magnetometer survey. It is situated on the southern border of t
Jan 1, 1968
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60. Copper-Molybdenum Mineralization at Mineral Park, Mohave County, Arizona
By D. M. Clippinger, J. J. Eidel, J. E. Frost
At Ithaca Peak, one of three peaks situated on Duval Corporation's Mineral Park property, a 'Single pulse of quartz monzonite magma intruded the isoclinally folded Precambrian Cerbat complex consistin
Jan 1, 1968
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600 000 M.T to move, a High Risk Operation
By Jean-Sébastien Lambert, Serge Roberge
"At the end of 2014, Holcim Canada (Demix Aggregates Division) considered the possibility of drillingand blasting a big volume of rock in order to expose a high-quality limestone bench in one of their
Jan 1, 2016
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6000 Ton Osterberg Load Test Reduces Foundation Costs For Delaware River Tramway
By Aly M. Mohammad
The Delaware River Tramway will link civic and retail developments in Philadelphia, Pennsylvania and Camden, New Jersey. Twin 300-foot towers will anchor the cables at either side of the river. Four h
Jan 1, 2002
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62. Massive Sulfide Deposits of the Bagdad District, Yavapai County, Arizona
By Robert L. Clayton, Arthur Baker
Two massive sulfide zinc-copper ore bodies are in quartz-sericite schist (probably formed by regional metamorphism of sediments) and andesite of the Precambrian Yavapai Series, on opposite sides of a
Jan 1, 1968
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64. Geologic Setting of Metallic Ore Deposits in the Northern Rocky Mountains and Adjacent Areas
By S. Warren Hobbs
The section of the Northwestern United States that includes the northern Rocky Mountains and adjacent areas to the west and east is one of large mineral production and important mineral potential. The
Jan 1, 1968