Uranium Deposits in Granitic Rocks PDF Download

Author: Richard K. Nishimori
Publisher:
ISBN:
Category : Granite
Languages : en
Pages : 334

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Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 270

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Proceedings of a Technical Committee meeting, Salamanca, Spain, 29 September to 3 October 1986. Magmatic and metamorphic rocks continue to be important sources of uranium despite the fact that in recent years interest in them has been eclipsed by the discovery of larger, lower cost deposits in other geological environments. However, many developing countries have geological environments consisting of magmatic and metamorphic rocks favouring these types of uranium deposits. Individual deposits can be quite large and economically competitive and constitute worthwhile exploration targets.

Author: Alcides Nóbrega Sial
Publisher: Geological Society of London
ISBN: 9781862393219
Category : Granite
Languages : en
Pages : 202

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This volume brings together a collection of papers that summarize current ideas and recent progress in the study of granite-related mineralization systems. They provide a combination of field, experimental and theoretical studies. Papers are grouped according to the main granite-related ore systems: granite-pegmatite, skarn and greisen-veins, porphyry, orogenic gold, intrusion-related, epithermal and porphyry-related gold and base metal, iron oxide-copper-gold (IOCG), and special case studies. The studies provide a broad spread in terms of both space and time, highlighting granite-related ore deposits from Europe (Russia, Sweden, Croatia and Turkey), the Middle East (Iran), Asia (Japan and China) and South America (Brazil and Argentina) and spanning rocks from Palaeoproterozoic to Miocene in age.

Author:
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Category :
Languages : en
Pages :

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Granitic and contact-metamorphic rocks of the Owens Valley area were sampled to determine their favorability for uranium. Uranium deposits associated with these rocks were examined to determine the mode of occurrence. Metamorphic rocks near contacts with intrusive rocks include skarns, schists, quartzites, metaconglomerates, hornfels, gneisses, and metavolcanics. The grade of contact metamorphism ranges from slight to intense, depending upon the distance from the intrusive contact. The average U3O content of the metamorphic rock samples is 3 ppM. Metamorphic rock samples in a roof pendant at the Claw prospect contain as much as 3 percent U3O8. Skarn samples from the Birch Creek pluton contain as much as 114 ppM U3O8; those from the Santa Rita Flat pluton contain as much as 23 ppM U3O8. Most of the intrusive rocks are granite, quartz monzonite, or monzonite. Granodiorite and diorite are less common, and gabbro is rare. The average U3O8 content of the crystalline rock samples is 4 ppM. Samples from a quartz-monzonite pluton east of Lone Pine, California, and quartz monzonite in the Santa Rosa Hills had maximum contents of 28 and 13 ppM U3O8, respectively. Areas of contact metamorphism and metasomatism, such as those at the Claw prospect and Birch Creek pluton, are probably the most favorable sites for uranium deposits. There are many miles of granitic and contact-metamorphic zones in which undiscovered uranium deposits may exist. Although the overall uranium content of granitic rocks appears to be low, the pluton east of Lone Pine and the Hunter Mountain pluton in the area of the Santa Rosa Hills have sufficient uranium to have acted as uranium and detrital source rocks for uranium deposits that may now be buried in Tertiary sediments in the basins around the plutons. The Claw deposit is the only known uranium deposit of a size and grade to be of possible commercial interest.

Author: Alan Douglas Gibbs
Publisher:
ISBN:
Category : Granite
Languages : en
Pages : 152

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Author:
Publisher:
ISBN:
Category : Granite
Languages : en
Pages : 308

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Author: A. Button
Publisher:
ISBN:
Category : Uranium mines and mining
Languages : en
Pages : 396

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Author: Ernest E. Thurlow
Publisher:
ISBN:
Category : Uranium ores
Languages : en
Pages : 14

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Author: Fares Howari
Publisher: Elsevier
ISBN: 0323909922
Category : Business & Economics
Languages : en
Pages : 286

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Uranium Geology of the Middle East and North Africa demonstrates mining potential in the MENA region, with a special interest given to Uranium. The formation and origin of uranium deposits is of interest for uranium exploration and is necessary for the long-term sustainability of nuclear energy production. The book proposes a new classification system built on earlier classification with detailed new maps, explanatory diagrams, cross sections, helpful satellite images, etc. In addition, it explains why the occurrences, depositional and geological environments of uranium in the Middle East and North Africa vary from one country to another. Using various related recognition criteria, the book reports the potential uranium provinces in the Middle East and North Africa countries. The definition of these provinces is based on the existing geologic and tectonic settings, along with geochronological sequences and geochemical characteristics. Presents a comprehensive overview of uranium resources and resource potential across the Middle East and North Africa Proposes a new system of metallogenic and tectonic classification for uranium ore deposits Includes case studies from each country in the region

Author: Fred Dotterer
Publisher:
ISBN:
Category : Granite
Languages : en
Pages : 96

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