Results 21 to 30 of about 205 (68)
Secondary Enrichment of Copper at the Madison Gold Skarn Deposit, Silver Star District, Montana [PDF]
, 2010 Secondary Enrichment of Copper at the Madison Gold Skarn Deposit, Silver Star District, Montana. This paper focuses on the chemical reactions responsible for secondary enrichment of copper...we argue that most of the secondary Cu enrichment occurred ...
Everett, Dan +2 more
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Mineral paragenesis and ore fluids at the Turquoise Ridge gold deposit, Nevada
, 1999 In this study, mineral assemblages and related fluid inclusions at the Turquoise Ridge Carlin-type gold deposit were examined to answer the following questions: (1) What is the ore-stage mineral paragenesis? (2) At what pressures and temperatures did the
Shigehiro, Michiko
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Bulletin of the Mineral Research and Exploration, 1999 Değirmenciler antimuan cevherleşmesi, Simav yöresindeki stratigrafik istifin tabanındaki biyotitli gnayslar içerisinde bulunan mermer merceklerine yerleşmiş stibnitli kuvars damarlarından oluşur. Kireçtaşının ornatımı ile ve açık boşluk dolgusu biçiminde
Vedat OYGÜR, Ayhan ERLER
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Geologija, 2009 A unique, highly radioactive variety of fluor it emineral has been recorded in the uranium occurrence of El-Missikat sheared granite pluton. In this occurrence, the uranium assumes different forms, including its presence as discrete, visible, secondary ...
Mohamed Fahmy Raslan
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Sulfide Mineralization at Mineral Creek Mines, Allamakee County, Iowa [PDF]
, 1983 The Mineral Creek sulfide deposits are located in Allamakee County, Iowa on the extreme northwest fringe of the upper Mississippi Valley zinc-lead district.
Garvin, Paul L.
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Latin American Journal of Sedimentology and Basin Analysis, 2005 En este trabajo se analiza el origen y las relaciones entre travertinos y jasperoides intercalados en rocas volcaniclásticas jurásicas en el distrito argento-aurífero Manantial Espejo, ubicado en el borde sur-occidental del Macizo del Deseado, provincia ...
Horacio Echeveste
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, 2008 Geosphere, February 2008, v. 4, p. 218-246, doi:10.1130/GES00126.1, Figure 12 - A full resolution version of Figure 12. Subset of Plate 3 over the Bald Mountain and Alligator Ridge districts, White Pine County (M, Fig. 6).
Barnaby W. Rockwell (8752563) +1 more
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The Alshar Epithermal Au-As-Sb-Tl Deposit, Southern Macedonia [PDF]
, 2006 The results of tectono-metallogenic, geological-structural, mineralogical, isotopic and thermobarogeochemical studies at the Alshar deposit and in the adjacent area are discussed.
Kochneva, Nina T. +4 more
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The geology and genesis of jasperoid in the northern Swisshelm Mountains, Cochise County, Arizona
, 1980 This item was digitized from a paper original and/or a microfilm copy. If you need higher-resolution images for any content in this item, please contact us at repository@u.library.arizona ...
McAlaster, Penelope
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Petroarchaeological and micropaleontologic classification of Finnish flinty materials: a critical review [PDF]
, 1985 The applicability of various geomicroscopic methods on Finnish flinty materials has been tested. Especially microfossil composition, petrographic properties and surface textures provided diagnostic observations.
Taavitsainen, J.-P.
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