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Author: Michael I. Ojovan
Publisher: MDPI
ISBN: 3039218468
Category : Technology & Engineering
Languages : en
Pages : 220
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Book Description
The book outlines recent advances in nuclear wasteform materials including glasses, ceramics and cements and spent nuclear fuel. It focuses on durability aspects and contains data on performance of nuclear wasteforms as well as expected behavior in a disposal environment.
Author: Michael I. Ojovan
Publisher: MDPI
ISBN: 3039218468
Category : Technology & Engineering
Languages : en
Pages : 220
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Book Description
The book outlines recent advances in nuclear wasteform materials including glasses, ceramics and cements and spent nuclear fuel. It focuses on durability aspects and contains data on performance of nuclear wasteforms as well as expected behavior in a disposal environment.
Author: Colin Richards
Publisher: Oxbow Books
ISBN: 1909686905
Category : Social Science
Languages : en
Pages : 802
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Book Description
Considering that Orkney is a group of relatively small islands lying off the northeast coast of the Scottish mainland, its wealth of Neolithic archaeology is truly extraordinary. An assortment of houses, chambered cairns, stone circles, standing stones and passage graves provides an unusually comprehensive range of archaeological and architectural contexts. Yet, in the early 1990s, there was a noticeable imbalance between 4th and 3rd millennium cal BC evidence, with house structures, and ‘villages’ being well represented in the latter but minimally in the former. As elsewhere in the British Isles, the archaeological visibility of the 4th millennium cal BC in Orkney tends to be dominated by the monumental presence of chambered cairns or tombs. In the 1970s Claude Lévi-Strauss conceived of a form of social organization based upon the ‘house’ – sociétés à maisons – in order to provide a classification for social groups that appeared not to conform to established anthropological kinship structures. In this approach, the anchor point is the ‘house’, understood as a conceptual resource that is a consequence of a strategy of constructing and legitimizing identities under ever shifting social conditions. Drawing on the results of an extensive program of fieldwork in the Bay of Firth, Mainland Orkney, the text explores the idea that the physical appearance of the house is a potent resource for materializing the dichotomous alliance and descent principles apparent in the archaeological evidence for the early and later Neolithic of Orkney. It argues that some of the insights made by Lévi-Strauss in his basic formulation of sociétés à maisons are extremely relevant to interpreting the archaeological evidence and providing the parameters for a ‘social’ narrative of the material changes occurring in Orkney between the 4th and 2nd millennia cal BC. The major excavations undertaken during the Cuween-Wideford Landscape Project provided an unprecedented depth and variety of evidence for Neolithic occupation, bridging the gap between domestic and ceremonial architecture and form, exploring the transition from wood to stone and relationships between the living and the dead and the role of material culture. The results are described and discussed in detail here, enabling tracing of the development and fragmentation of sociétés à maisons over a 1500 year period of Northern Isles prehistory.
Author: Pim de Voogt
Publisher: Springer Nature
ISBN: 3030678520
Category : Science
Languages : en
Pages : 178
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Book Description
Reviews of Environmental Contamination and Toxicology provides concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications. Chapter “Natural Purification Through Soils: Risks and Opportunities of Sewage Effluent Reuse in Sub-surface Irrigation” is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Author: Bernhard Pracejus
Publisher: Elsevier
ISBN: 0444627375
Category : Science
Languages : en
Pages : 1119
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Book Description
The Ore Minerals Under the Microscope: An Optical Guide, Second Edition, is a very detailed color atlas for ore/opaque minerals (ore microscopy), with a main emphasis on name and synonyms, short descriptions, mineral groups, chemical compositions, information on major formation environments, optical data, reflection color/shade comparison with four common/standard minerals of a similar color or grey shade, and up to five high-quality photos for each mineral with scale. In addition, the atlas contains a compilation from some of the prominent publications in the field of ore microscopy presented on a list of 431 minerals. - Concise, full-color pictorial reference for scientists and geologists - Explains how to describe and identify microscopic samples of minerals - Draws material from prominent literature yielding more than 400 different minerals
Author: Frederick Lin Sutherland
Publisher: MDPI
ISBN: 3039436155
Category : Science
Languages : en
Pages : 234
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Book Description
Ruby, red corundum, is a gem mineral with mineral properties, gem characteristics and chemistry that are reliant on critical trace element substitutions in its aluminum oxide crystal structure. Ruby has attracted scientific and economic interest. It has already been studied extensively regarding its widespread global distribution and the diversity of its geological associations, as revealed by exploration and exploitation. Researchers are becoming increasingly aware that geographic typing of ruby characteristics and its host assemblages may guide further exploration and provide checks on reputed sources of both rough and cut stones. Genetic pointers, based on fluid and solid mineral inclusions, oxygen and other isotope values and pressure and temperature estimates, have already yielded much genetic information. Rare ruby in mantle xenoliths, TP ~1100o C, 2GPa, epitaxial diamond in ruby and ruby in diamond have special interest. Amid the present extensive documentation on this singular gem mineral, new insights and co-existing associations remain to be discovered. Although ruby largely appears in metamorphic and metasomatic source rocks, newer studies suggest it may also arise from magmatic sources. Age-dating of a range of mineral inclusions in ruby now allows more precise modelling of ruby genesis. Tectonic aspects of ruby genesis related to early collisional plate events on Earth are also a frontier for further understanding. In addition, ruby growth remains an important phase in metamorphic studies of events in some young collisional zones. This Special Issue planned for Minerals aims to attract further studies on this multi-origin gem mineral. Investigations at the ‘economic border’ of ruby and sapphire nomenclature and relevant treatments affecting ruby color will be considered.
Author: A. Brian Hawkins
Publisher: Springer Science & Business Media
ISBN: 331900221X
Category : Science
Languages : en
Pages : 311
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Book Description
The book highlights and analyses the distress to buildings caused by sulphate-induced heave, with particular reference to the recent problems in the Dublin area of Ireland. It describes the formation of pyrite, the processes involved in its oxidation and the various ways in which consequential expansion takes place. For the first time in the literature it discusses the way that buildings can be raised above their supporting foundation walls by the expansion of pyritiferous fill which has been used beneath ground-bearing floor slabs in Ireland. The significance of fractures through the iron sulphide microcrystals for the rate and extent of oxidation is discussed. Photographs and profiles of sulphate ingress into concrete/concrete blocks are presented. Case histories from the UK, North America and Ireland are discussed.
Author: William Alexander Deer
Publisher: Geological Society of London
ISBN: 9781897799888
Category : Science
Languages : en
Pages : 940
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Book Description
A second edition, in two parts, of Volume 1 of this well-known reference series. This volume deals mainly with the olivine and garnet groups and also the humite group, zircon, sphene, vesuvianite, the Al2SiO5 (including mullite), topaz, staurolite and chloritoid. The disilicates and ring-silicates are covered in Volume 1B. In the years since the first edition was published, the quantity and scope of research on the olivines, garnets and the aluminosilicates has grown enormously and has given rise to a wide variety of literature. This book, which has been completely rewritten and considerably expanded, summarizes the important research results and presents them in an organized fashion. Each mineral chapter is divided into sections on structure, chemistry, optical and physical properties, distinguishing features and paragenesis. Each chapter is headed by a tabulation of mineral data and a sketch showing optical orientation, and concludes with full references to the literature. Diagrams of the crystal structures are presented and are followed by a discussion of the structural features. The chemical sections include a large number of analyses from which structural formulae have been calculated, illustrating the chemical and paragenetical variation exhibited by each mineral; phase equilibria in relevant systems are fully considered. In the sections on optical and physical properties, particular attention is paid to the correlation of these properties with chemical composition. The principal modes of occurrence are described and discussed in the paragenesis sections; here again correlation with chemistry is emphasized. 11 volumes are available in this series.
Author: K. J. Schulz
Publisher: Geological Survey
ISBN: 9781411339910
Category : Business & Economics
Languages : en
Pages : 868
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Book Description
As the importance and dependence of specific mineral commodities increase, so does concern about their supply. The United States is currently 100 percent reliant on foreign sources for 20 mineral commodities and imports the majority of its supply of more than 50 mineral commodities. Mineral commodities that have important uses and face potential supply disruption are critical to American economic and national security. However, a mineral commodity's importance and the nature of its supply chain can change with time; a mineral commodity that may not have been considered critical 25 years ago may be critical today, and one considered critical today may not be so in the future. The U.S. Geological Survey has produced this volume to describe a select group of mineral commodities currently critical to our economy and security. For each mineral commodity covered, the authors provide a comprehensive look at (1) the commodity's use; (2) the geology and global distribution of the mineral deposit types that account for the present and possible future supply of the commodity; (3) the current status of production, reserves, and resources in the United States and globally; and (4) environmental considerations related to the commodity's production from different types of mineral deposits. The volume describes U.S. critical mineral resources in a global context, for no country can be self-sufficient for all its mineral commodity needs, and the United States will always rely on global mineral commodity supply chains. This volume provides the scientific understanding of critical mineral resources required for informed decisionmaking by those responsible for ensuring that the United States has a secure and sustainable supply of mineral commodities.
Author: W. F. Hillebrand
Publisher:
ISBN:
Category : Carbonate rocks
Languages : en
Pages : 218
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Book Description
Author: L. L. Y. Chang
Publisher:
ISBN: 9780582300934
Category : Carbonates
Languages : en
Pages : 383
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Book Description
