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The Po�cos de Caldas Project : natural analogues of processes in a radioactive waste repository /
The safe disposal of radioactive wastes by burial in deep geological formations requires long-term predictions of the future behaviour of the wastes and their engineered repository. Such predictions can be tested by evaluating processes analogous to those which will occur in a repository, which have...
| Clasificación: | Libro Electrónico |
|---|---|
| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Amsterdam ; New York :
Elsevier,
1993.
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| Temas: | |
| Acceso en línea: | Texto completo |
MARC
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| 245 | 0 | 4 | |a The Po�cos de Caldas Project : |b natural analogues of processes in a radioactive waste repository / |c edited by N.A. Chapman [and others]. |
| 260 | |a Amsterdam ; |a New York : |b Elsevier, |c 1993. | ||
| 300 | |a 1 online resource (ix, 603 pages) : |b illustrations, maps | ||
| 336 | |a text |b txt |2 rdacontent | ||
| 337 | |a computer |b c |2 rdamedia | ||
| 338 | |a online resource |b cr |2 rdacarrier | ||
| 500 | |a "Reprinted from the Journal of geochemical exploration, vol. 45, nos. 1-3." | ||
| 504 | |a Includes bibliographical references. | ||
| 520 | |a The safe disposal of radioactive wastes by burial in deep geological formations requires long-term predictions of the future behaviour of the wastes and their engineered repository. Such predictions can be tested by evaluating processes analogous to those which will occur in a repository, which have been long active in the natural geochemical environment. The Po & ccedil;os de Caldas Project is a comprehensive study of two ore deposits in Minas Gerais, Brazil, aimed at looking at uranium and thorium series radionuclide and rare-earth element mobility, the development and movement of redox fronts, and the nature of natural groundwater colloids. A multidisciplinary team of experts from 27 laboratories carried out a fully integrated study of the geology, geomorphology, hydrogeology, geochemistry, hydrochemistry and geomicrobiology of the two sites for nearly four years. This book contains 20 papers covering the detailed findings, with particular emphasis on their significance for radioactive waste disposal, especially on the use of the data in testing models of radionuclide movement. It will interest economic geologists, geochemists and performance assessment modellers involved in the geological disposal of radioactive wastes. | ||
| 588 | 0 | |a Print version record. | |
| 505 | 0 | |a Front Cover; The Po�cos de Caldas Project: Natural Analogues of Processes in a Radioactive Waste Repository; Copyright Page; Table of Contents; Preface; Chapter 1. The Po�cos de Caldas Project: An Introduction and Summary of Its Implications for Radioactive Waste Disposal; Abstract; Introduction; Objective 1: Geochemical Model Testing; Objective 2: Redox Front Processes; Objective 3: Particles and Colloids and Their Role in Radionuclide Transport; Objective 4: Hydrothermal Alteration, Metasomatism and Mineralisation Modelling; Acknowledgements; References. | |
| 505 | 8 | |a Chapter 2. The Regional Geology of the Po�cos de Caldas Alkaline Complex: Mineralogy and Geochemistry of Selected Nepheline Syenites and PhonolitesAbstract; 1. Introduction; 2. Regional Geology; 3. Description of Regional Samples; 4. Final Considerations: Regional Samples and Geological Evolution; 5. Acknowledgements; References; Chapter 3. Hydrothermal and Supergene Uranium Mineralization at the Osamu Utsumi Mine, Po�cos de Caldas, Minas Gerais, Brazil; Abstract; 1. Introduction; 2. Geological Setting; 3. Analytical Methods; 4. Host Rocks; 5. Oxidized Zone; 6. Weathering Cover; 7. Geochemistry. | |
| 505 | 8 | |a 8. Fracture Mineralogy9. Ultramafic Dykes; 10. Uranium Mineralization; 11. Redox Fronts; 12. Summary and Discussion; Acknowledgements; References; Chapter 4. The Supergene Thorium and Rare-Earth Elemen Tdeposit at Morro do Ferro, Po�cos de Caldas, Minas Gerais, Brazil; Abstract; 1. Introduction; 2. Analytical Methods; 3. Previous Work; 4. Geological Setting; 5. Country Rock; 6. Supergene Th-Ree-Mineralization; 7. Conclusions; Acknowledgements; References; Chapter 5. Origin and Growth Rates of Pitchblende Nodules at the Osamu Utsumi Mine, Po�cos de Caldas, Brazil; Abstract; Introduction. | |
| 505 | 8 | |a Redox FrontMethods; Development of Pitchblende Nodules; Second Generation Nodules; Uranium Series Disequilibrium; Origin of First and Second Generation Nodules; Age Estimates of First Generation Nodules; Growth Rates of Second Generation Nodules; Conclusions; Acknowledgements; References; Chapter 6. Isotopic Geochemical Characterization of Selectednepheline Syenites and Phonolites from the Po�cosde Caldas Alkaline Complex, Minas Gerais, Brazil; Abstract; 1. Introduction; 2. Analytical Methods; 3. Regional Studies; 4. Drillcore F4 Studies, Osamu Utsumi Mine. | |
| 505 | 8 | |a 5. Lamproite Dyke Studies, Osamu Utsumi Mine6. Summary and Conclusions; 7. Acknowledgements; References; Chapter 7. Geomorphological and Hydrogeological Features of the Po�cos de Caldas Caldera Analogue Study Sites; Abstract; 1. Introduction; 2. Geomorphological Description of the Po�cos de Caldas Plateau; 3. Hydrogeology of the Two Study Sites; 4. Conclusions; Acknowledgements; References; Chapter 8. Ground Water Chemistry and Geochemica Lmodeling of Water-Rock Interactions at the Osamu Utsumi Mine and the Morro do Ferro analogue study sites, Po�cos de Caldas, Minas Gerais, Brazil; Abstract. | |
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| 650 | 0 | |a Geochemistry |z Brazil |z Po�cos de Caldas. | |
| 650 | 0 | |a Hydrogeology |z Brazil |z Po�cos de Caldas. | |
| 650 | 0 | |a Radioactive waste disposal in the ground. | |
| 650 | 0 | |a Critical care medicine. | |
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| 700 | 1 | |a Chapman, Neil A. | |
| 776 | 0 | 8 | |i Print version: |t Po�cos de Caldas Project. |d Amsterdam ; New York : Elsevier, 1993 |z 0444899340 |w (DLC) 92045006 |w (OCoLC)27186473 |
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