 | 1901 - 1078 Seiten
...mineralizing agent and of the microscopic characters of the associated i-ocks. 5021 The Potsdam gold ores of the Black Hills of South Dakota. Am. Inst. Mg. Engrs., Trans., vol. xxvii, pp. 404-428, 1S98. Descril>es the occurrence, character, and origin of the co-called Potsdam... | |
 | 1907 - 968 Seiten
...pp. 385-38«, 426-428, 5 figs., 1904. Forsyth (Alexander). 1. [In discussion of paper by JD Irvini: " 1024-1025. 1902. Foster (Ernest Le Nevé). 1. The Colorado Central lode, a paradox of the mining law.... | |
 | 1902 - 512 Seiten
...Calcutta, Mem. Geol. Surv. Ind. 1901. 81 S., 7 Fig., 20 Taf. u. l geol. Karte. Pr. 14 M. Irving, JD: Some recently exploited deposits of Wolframite in the Black Hills of South Dakota. Am. Inst. of Min. Eng. Richmond Meeting, Febr. 1901. 13 S. m. l Fig. Janet, L.: Sur le rôle de la géologie... | |
 | 1902 - 594 Seiten
...general relation can be established between certain rock types and rich ore deposits." WF HlLLEBRAND. Some Recently Exploited Deposits of Wolframite in the Black Hills of South Dakota. BY JD IRVING. Trans. Am. Inst. Min. Eng., Richmond Meeting, 1901. 13 pp. — Near Lead City are two... | |
 | Fred Boughton Weeks - 1902 - 738 Seiten
...mineralizing agent and of the microscopic characters of the associated rocks. 5021 The Potsdam gold ores of the Black Hills of South Dakota. Am. Inst. Mg. Engrs., Trans., vol. xxvii, pp. 404-428, 1898. Descril>es the occurrence, character, and origin of the so-called Potsdam... | |
 | Geological Survey (U.S.) - 1903 - 214 Seiten
...species of fossils from this locality. 888 Raymond (RW). [In discussion of paper by JD Irving on " Wolframite in the Black Hills of South Dakota."] Am. Inst. Mg. Engrs., Trans., vol. 31, pp. 1025-1026, 1902. 889 Reid (George D.). The Burro Mountain copper district, New Mexico. Eng. & Mg. Jour.,... | |
 | Frank Wigglesworth Clarke - 1903 - 558 Seiten
...4th ser., vol. 14, pp. 426-430, 1902. 380 Forsyth (Alexander). [In discussion of paper by JD Irving "Wolframite in the Black Hills of South Dakota."] Am. Inst. Mg. Engrs., Trans., vol. 31, pp. 1024-1025, 1902. 387 Fowke (Gerard). The preglacial drainage of Ohio — introduction. Ohio State Acad.... | |
 | American Society of Civil Engineers - 1903 - 896 Seiten
...Silver Mines: Two Types of Ore Deposits in the Deserts of Nevada and Utah.* SF Emmons. (so) Vol. xxxi. Some Recently Exploited Deposits of Wolframite in the Black Hills of South Dakota.* JD Irving. 156) Vol. xxxi. Gold-Mining in the Transvaal, South Africa.* John Hays Hammond. (56) Vol.... | |
 | George Perkins Merrill - 1904 - 518 Seiten
...Nevada, Tungsten Deposits. Engineering and Mining Journal, LXXIII, March, 1902, pp. 304, 305. JD IRVING. Some Recently Exploited Deposits of Wolframite in the Black Hills of South Dakota. Transactions of the American Institute of Mining Engineers, XXXI, 1902, pp. 683H585. VIII. PHOSPHATES... | |
 | Fred Boughton Weeks - 1906 - 788 Seiten
...the occurrence and relations of igneous and sedimentary rocks in this region. Irving (John Duer). 1. Some recently exploited deposits of wolframite in...of South Dakota. Am. Inst. Mg. Engrs., Trans., vol. S!, pp. 633-ffifi, 1 lig. (small geol. map). 1902. Describes the general geology and occurrenc* of... | |
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Some recently exploited deposits of wolframite in the Black Hills of South Dakota. 
