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Lithium - Northeast Brazil Is Potential SourceBy W. B. Mather
GEOLOGICAL studies have revealed the occurrence of hundreds of pegmatite dikes in north- east Brazil, Fig. 1, in the three states of Rio Grande do Norte, Paraiba, and Ceara. Heretofore data have not b
Jan 9, 1954
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Savage River Mines Project Is DedicatedThe new, internationally-owned Savage River Mines iron ore mining, concentrating and pelletizing project, built and operated by Pickands Mather & Co. International, was dedicated March 6 at Port Latta
Jan 4, 1968
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Hydrometallurgy Is Key In Winning U3O8In uranium metallurgy, the main purpose is to obtain a product containing 80-85% U308 (yellowcake) from ores whose average grade is a mere 0.21% U30& Essentially, the task of extraction and concentrat
Jan 8, 1974
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Rare Earths and Indian Gems Discussed by Tyler and BallBy AIME AIME
TWO papers, "Calcium, Strontium, and Barium Metals," by Charles Hardy and Paul M. Tyler, and "The Mining of Gems and Ornamental Stones by American Indians," by Sydney H. Ball, were presented before th
Jan 1, 1933
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What Is Wrong With Independent Mining?By Ira B. Joralemon
INDIVIDUALS and small companies have discovered and brought into production the mining districts of the United States. Hardly an exception comes to mind, save for the disseminated copper properties an
Jan 8, 1950
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Discrimination in Applying GeophysicsBy Sherwin F. Kelly
THE present lull in engineering activities presents an advantageous moment for inquiring into the position now occupied by geophysics in its various fields of application. The recent over-expansion in
Jan 1, 1931
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Mining A Steeply Dipping Coal Seam in the United States By LonwallBy David W. Wisecarver, James F. Reynolds
INTRODUCTION The Department of Energy is cooperating with Snowmass Coal Company near Carbondale, Colorado to introduce the longwall mining method in moderate to steeply pitching coal seams in the
Jan 1, 1982
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What an Operating Company Expects of the College GraduateBy L. E. Young
MUCH has been said and written on this subject and probably little new can be said. However, the point of view of the operating company changes from time to time, and more stress may be laid upon a su
Jan 1, 1929
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Metal Mining - St. Joseph Lead Co. Indian Creek DevelopmentBy C. Kremer Bain
DURING the past several years of diamond drilling in Washington County, Mo., the St. Joseph Lead Co. has discovered a concentration of commercial lead-zinc ore at four different points within an area
Jan 1, 1954
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68. The Metaline District, WashingtonBy Roy A. Anderson, Roger H. McConnel
The Metaline district from 1906 through 1965 has produced nearly 16 million tons of ore yielding 400,808 tons of zinc and 178,062 tons of lead. The sediments, ranging from Precambrian into the Devonia
Jan 1, 1968
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Novel Techniques In Lixiviants And Site RestorationBy Frederick W. DeVries
Since we first agreed to present this talk we have learned that some of you may have been covering ground we intend to discuss: Bob Schechter, Daryl Tweeton, Don Seidel, Herb Burgman; however, the ide
Jan 1, 1979
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66. The Coeur d'Alene District, IdahoBy Verne C. Fryklund, S. Warren Hobbs
The Coeur d'Alene district in the panhandle of Idaho is one of the major lead-zinc-silver producing areas in the world. The value of recorded production to date has exceeded $2 billion. Country rock c
Jan 1, 1968
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The Application of Dry-Air Blast to the Manufacture of IronBy JAMES QATLEY
THE atmosphere, which plays such an important part in the manufacture of iron and steel, is the most variable element involved in its several processes; and particularly is this true of the blast-furn
Jan 1, 1905
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Papers - Production - Domestic - Oil and Gas Development in the Texas Panhandle for the year 1940By H. W. McCue, Henry Rogatz
Oil.—In the Texas Panhandle, 502 oil wells were drilled during the year 1940, with a total daily initial production of 139,187 bb1.—that is, 137 more oil wells drilled than in the previous year, with
Jan 1, 1941
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Papers - Production - Domestic - Oil and Gas Development in the Texas Panhandle for the year 1940By Henry Rogatz, H. W. McCue
Oil.—In the Texas Panhandle, 502 oil wells were drilled during the year 1940, with a total daily initial production of 139,187 bb1.—that is, 137 more oil wells drilled than in the previous year, with
Jan 1, 1941
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Noteworthy Advance In Teaching Applied GeologyTULSA SECTION At the smoker concluding the two day meeting of the Tulsa section of the American Institute of Mining and Metallurgical Engineers, Tulsa, Okla., Feb. 26, 1919, Dr. Willis T. Lee, the ne
Jan 6, 1919
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Steelmaking - Effect of Ingot Delivery Time as a Factor in Quality of Bessemer Steel (Metals Technology, August 1945) (With discussion)By Howard C. Dunkle
Various factors can affect the quality of BIII2 and BIII3 steel as produced in a bessemer plant; among them: vessel-charging practice, blowing practice, ingot-pouring practice, ingot delivery-time pra
Jan 1, 1945
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History of the Hecla Mine Burke, IdahoBy JAS. F. McCARTHY
THE present Hecla Co. is a Washington corporation; the Hecla Co. of Idaho was the old company. The older corporation owned two claims, the Hecla and the Katie May, and was incorporated for 500,000 sha
Jan 1, 1924
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