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This work details minor, trace and ultratrace methods; addresses the essential stages that precede measurement; and highlights the measurement systems most likey to be used by the pragmatic analyst. It features key material on inclusion and phase isolation. The book is designed to provide useful maps and signposts for metals analysts who must verify that stringent trace level compositional specifications have been met.
Modeling of Magmatic and Allied Processes presents methods and models for the quantification of geological processes. Conceptual models for magmatic differentiation involving crystallization and mixing are presented and applied to field and textural data. Model equations for the degree of partial melting in presence perturbations of lithospheric geotherms and partitioning of trace/radioactive elements in the matrix and melts, and the formation of continents with melt additions are described. Diverse magmatic products are shown to result from differentiation processes rather than magmatic source heterogeneities. The degree of partial melting depends on mantle temperatures, for which parameter...
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Inorganic Geochemistry of Coal explains how to determine the concentrations and modes of occurrence of elements in coal, how to diminish adverse effects of toxic elements on the environment and human health, which elements in coal could be industrially utilized, and which elements can be successfully used as indications for deciphering depositional environments and tectonic evolution. As coal use will remain at an all-time high for the next several decades, there is a critical need for understanding the properties of this fuel to ensure efficient use, encourage its economic by-product potential, and to help minimize its negative technological, environmental and health impacts. - Features dozens of never-before published illustrations of critical features of the inorganic geochemistry of coal - Covers both the theory and applications of the topic, including case studies to serve as real-world examples - Includes a chapter on the health and environmental impacts of the mining, development and use of coal
Fourth volume in Mike Ashley's acclaimed set on the history of science-fiction magazines. This volume looks at the 1980s.
Since the appearance of the first science fiction magazine in 1926, thousands of short stories have been published in periodicals devoted to the genre. These stories cover a wide range of subjects, from spacecraft to the human condition, and feature little-known authors as well as masters like Ellison and Asimov. In the past, finding which issue of what magazine ran a certain story was nearly impossible. This much-needed reference tool provides valuable assistance in the daunting task of locating short stories published in science fiction magazines, providing exhaustive indexes to magazines, authors, and titles, allowing a variety of options for research on 34,000 stories appearing in nearly 5,000 issues of 133 genre magazines. Stories from all major American publications, as well as from several minor periodicals, are indexed. Also included is an appendix of the best known and most prolific contributors, giving the titles of all their stories in this work (necessary because the huge author index does not show titles). A guide to how to use this book clarifies its features for the researcher.