The Morro Do Ferro Thorium and Rare-earth Ore Deposit, Poços de Caldas District, Brazil PDF Download
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Author: Helmuth Wedow
Publisher:
ISBN:
Category : Ore deposits
Languages : en
Pages : 44
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Author: Helmuth Wedow
Publisher:
ISBN:
Category : Ore deposits
Languages : en
Pages : 44
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Author: N.A. Chapman
Publisher: Elsevier
ISBN: 044459891X
Category : Technology & Engineering
Languages : en
Pages : 614
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Book Description
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 Pocos 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.
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 232
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Author: G. J. Orris
Publisher:
ISBN:
Category : Rare earth metals
Languages : en
Pages : 174
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Author: P. Henderson
Publisher: Elsevier
ISBN: 148328977X
Category : Science
Languages : en
Pages : 523
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Book Description
Developments in Geochemistry, Volume 2: Rare Earth Element Geochemistry presents the remarkable developments in the chemistry and geochemistry of the rare earth elements. This book discusses the analytical techniques and the recognition that rare earth fractionation occurs naturally in different ways. Organized into 13 chapters, this volume begins with an overview of the wide array of types and sizes of the cation coordination polyhedral in rock-forming minerals. This text then examines the application of rare earth element abundances to petrogenetic problems that has centered on the evolution of igneous rocks. Other chapters consider the matching of observed rare earth element abundances with those provided by the theoretical modeling of petrogenetic processes. This book discusses as well the hypotheses on the genesis of a rock or mineral suite. The final chapter deals with the principal analytical methods. This book is a valuable resource for undergraduates, lecturers, and researchers who study petrology and geochemistry.
Author: R.W. Boyle
Publisher: Elsevier
ISBN: 0444597638
Category : Technology & Engineering
Languages : en
Pages : 509
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Book Description
Developments in Economic Geology, 16: Geochemical Prospecting for Thorium and Uranium Deposits focuses on the analysis of various geochemical methods applicable in the search for all types of thorium and uranium deposits. The publication first ponders on the general chemistry and geochemistry of thorium and uranium, deposits of thorium and uranium and their indicator elements, and geochemical prospecting for thorium and uranium. Discussions focus on radiation surveys, selection of areas, primary mineralization, supergene oxidation, and secondary enrichment of endogenic thorium and uranium deposits, and equilibrium in the natural radioactive series. The book then ponders on lithochemical, pedochemical, hydrochemical, and biogeochemical surveys of the geochemical prospecting for thorium and uranium. Topics include heavy and light mineral surveys of stream, river, pond, and lake sediments, detailed litochemical surveys utilizing primary halos, and case histories. The text takes a look at sampling procedures and analytical methods for estimating thorium and uranium and miscellaneous methods and atmochemical surveys on the geochemical prospecting for thorium and uranium, including isotopic methods, remote sensing and geothermal methods, and liquid inclusion and thermoluminescent methods. The book is a valuable source of data for researchers wanting to explore geochemical prospecting for thorium and uranium deposits.
Author: Piero Comin-Chiaramonti
Publisher: EdUSP
ISBN: 9788531409035
Category : Alkalic igneous rocks
Languages : en
Pages : 758
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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 648
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Author: Geological Survey (U.S.).
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1070
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Author: Wenonah E. Bergquist
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 76
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