 | | Journal (article/letter/editorial) | | 200, Reno, Nevada 89521 DOUGLAS A. ARCHIBALD, Department of Geological Sciences and Geological Engineering...by ages for vein adularia, hypogene alunite, and supergene alunite determined by Ar39/Ar40 step-heating...host rhyolite domes. Magmatic-hydrothermal quartz-alunite alteration spatially associated with Late Cretaceous...to 65 and 50 to 49 Ma, respectively. Supergene alunite dates from the El Peñón district indicate that...intersected by drill holes and in the underground mine workings, is 59.2 ± 1.6 Ma based on whole-rock K/Ar |  | | Book | | .....• ••~.. lnstituto Tecnol6gico i ~ GeoMinero de Espana Special Publication No. 8 f_o_r_G~e~o-lo_g_y_...CARDOZO Universidad Nacional de lngenieria, and Newmont Peru Limited Gerente de Exploraciones Av. Jose Galvez...CEDILW Facultad de Minas, Metalurgia y Geologia, Universidad de Guanajuato Ex-Hacienda de San Matias s/n...Prof. Dr. Lwfs FONTBOTE Departement de Mineralogie, Universite de Geneve 12, rue des Maraichers CH-1211...Prof. Dr. JOSE FRUTOS Programa de Geologia Econ6mica Aplicada, Universidad de Concepci6n Casilla 4107 Concepci6n |  | | Book | | Sciences Institute 'J aume Almera', Consejo Superior de I11vestigaciones Cientificas, Barcelona, Spain •...Field excursion from central Chile to the Atacama De<,crt. W. Gibbons & -1. Moreno 329 Refere nee::...(SERNAGEOM J N. Chile) E. Custodio (Univ. Politecnica de Cataluna, Spain) E. Godoy (SER NAGEOMI , Chile) A...Aut6noma de Madrid, Spain) H. Miller (Ludwig-Maximilians-Un1 v. Germany) D . Morata (Universidad de Chile...University, UK) V. R amos (Univ. Buenos Aires. Argentina) A. Reed1nan (British Geological Survey) K. R |  | | Report (issue) | | skarns 33 Alao terrane 36 Alao-Paute unit 36 El Pan unit 38 Maguazo unit 39 Guamote terrane • 41 Opluolitic...Oro (Figure 2), the subject of this 1nen1oir, were de- 4 ONE INTRODUC-r!ON picted on the national...the Llanganates area (Kennerley, 1971) and Loja Province (Kennerley, 1973) . Feininger (1978, 1980) con...Lhe British Embassy, Quito: Redmond Norton, Douglas de Wilton and Caroline Blake: under ambassadors Michael...1 985; 1 989) are thought to have formed in that pan of the belt close to the tY_Pe locality in Canada |  | | Journal (article/letter/editorial) | | 077.5.13 Goldschmidt2013 Conference Abstracts Alunite-Turquoise occurrence from Ali-Abad porphyry copper...A. MACKIZADEH1*, B. TAGHIPOUR2 AND L. GORGI1 Department of Geology, Isfahan University, Isfahan, Iran...Iran (ma_mackizadeh@yahoo.com) 2 Department of Earth Sciences, Shiraz University, Shiraz, Iran (taghipour@shirazu...following mineral assemblage has been detected: Alunite+ turquoise + pyrite+ sercite+ garnet+ quartz+ goethite...mineralogical investigations the close associate of alunite-turquoise is well established in alteration zones |  | | Book | | Junction Editors Fabio Cediel Consulting Geologist Department of Geology University EAFIT Medellín, Colombia...including Gorgona Island, Chocó Arc, Sierra Nevada de Santa Marta, La Macarena, and the Guiana Shield:...und Petrographische Mitteilungen. Bulletin Suisse de Mineralogie et Petrographie, v. 30 p. 219–237. 1954...Beitrag zur Geologie und Petrographie der Sierra Nevada de Santa Marta (Kolumbien, Südamarika). Schweiz, Mineralogische...und Petrographische Mitteilungen. Bulletin Suisse de Mineralogie et Petrographie, v. 43 p. 91–103. 1969 |  | | Book | | Science Board of Advisers Andrew Chamberlain, Department of Archaeology and Prehistory, University of...British Geological Survey Art Palmer, Earth Science Department, State University of New York Trevor Shaw, Karst...Boris Sket, Department of Biology, University of Ljubljana, Slovenia Tony Waltham, Department of Civil Engineering...Paul Williams, Department of Geography, University of Auckland Paul Wood, Department of Geography, Loughborough...pocket developed along a joint in the ceiling of Gruta de Torrinha, Brazil. (Photo by John Gunn) Classic hand |  | | Book (volume) | | Though preparation of a combined the plan of Dennis de by numerous and short separate articles the infant...together by one or two men who were still for their province. specialist learning, which has since given...acknowledged leaders of the world's thought, in every department of human knowledge. The 1824, 1824 For this...completion a satisfactory synoptic view of any department of knowledge. The historical record is restricted...contributors who dealt with each homogeneous department of knowledge was combined with the concentration |
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