About the Special Issue Editor
Preface to ”Experimental and Thermodynamical Modeling of Ore-Forming Processes in Magmatic and Hydrothermal Systems”
Galina Palyanova Editorial for the Special Issue: Experimental and Thermodynamic Modeling of Ore-Forming Processes in Magmatic and Hydrothermal Systems Reprinted from
Alexander V. Zotov, Nikolai N. Kuzmin, Vladimir L. Reukov and Boris R. Tagirov Stability of AuCl2 − from 25 to 1000 ◦C at Pressures to 5000 bar and Consequences for Hydrothermal Gold Mobilization
Vladimir L. Tauson, Sergey V. Lipko, Nikolay V. Smagunov and Raisa G. Kravtsova Trace Element Partitioning Dualism under Mineral–Fluid Interaction: Origin and Geochemical Significance

Практическое руководство по стратиформным месторождениям твердых полезных ископаемых. Часть 4. Принципы и общие исследования. Том 7. Гипергенные и поверхностные рудные месторождения, текстуры и строение

Office de la Recherche Scientifique et Technique, Outre Mer (ORSTOM), Boudy, France
Office de la Recherche Scientifique et Technique, Outre Mer (ORSTOM), Boudy, France

In 1949 a large bastn8site deposit was discovered at Mountain Pass, Cal if. Subsequent development of the deposit made the Uni ted States the worl d's largest source of rare-earth minerals. Since 1965, bastnisi te, a f luocarbonate of the cerium-group metals, REFC03, has replaced monazite as the principal source of rare earths; in 1978 it accounted for more than ha l f of the world production (§_).3 Rare-earth a lloys and compounds are used in petroleum crac.kin.g catalysts, ductile iron and high-strength, lo..,..alloy (HSLA) steel production, high- energy pertn4lnent magnets, color tel evi si on pi cture tubes, glass polishing and decolorizing, and ceramics. <...>

In recent years, alkaline rocks have started to attract intensive attention in both academic and practical fields. These rocks are distinguished mostly by the abundance of alkaline minerals they contain rather than their other components. They generally represent magmatic rocks which contain sodium pyroxene, sodium amphibole or feldspathoid.

Giant (and super-giant) metallic deposits are defined as those that store the trace metal (and some major metal like Fe, Al) equivalent in 1011 (1012) tons of continental crust in Clarke (mean crust content) concentration. Deposits of metallic ores that have very contrasting Clarke values (like Fe, Cu and Au) can be compared on geochemical basis, with political-economic and technologic factors minimized. Under these terms, there are now 1171 giant and 137 supergiant accumulations of 37 metals worldwide, contained in 915 deposits, as several deposits have two or more giant metal accumulations (Olympic Dam has 5).

This book is an outgrowth of my interest in the chemistry of sedimentary rocks. In teaching geochemistry, I realized that the best examples for many chemical processes are drawn from the study of ore deposits. Consequently, we initiated a course at The University of Cincinnati entitled "Sedimentary Ore Deposits," which serves as the final quarter course for both our sedimentary petrology and our ore deposits sequence, and this book is based on that teaching experience. Because of my orientation, the treatment given is perhaps more sedimentological than is usually found in books on ore deposits, but I hope that this proves to be an advantage. It will also be obvious that I have drawn heavily on the ideas and techniques of Robert Garrels.

Economics, and the economic way of thinking, have had an important influence on business and government affairs for at least the last two centuries. The Scottish author Adam Smith espoused the foundations of modern economic thought in 1776 (Smith, 1976 [1776]). His famous volume – The Wealth of Nations1 – ushered in a revolution in economic thinking. His ideas formed the basis of the new academic field of political economy, which writers such as William Stanley Jevons renamed as economics some 100 years later.

Большое количество залежей богатых железных руд Курской магнитной аномалии (КМА) остается невостребованным из-за сложных геологических условий. Возрастающие темпы потребления железа на месторождениях, разрабатываемых традиционными способами, а также сокращение минерально-сырьевой базы, определяют необходимость дальнейшего изучения имеющихся месторождений для их освоения нетрадиционными методами - более экологическими, технологичными и экономичными.

Монография посвящена крупнейшему на северо-востоке России Нежданинскому золоторудному месторождению. В основу монографии положены многолетние авторские исследования геологии, структуры, минералогии и геохимии пород, метасоматитов и руд. Работа насыщена многочисленными и разнообразными аналитическими данными по типоморфизму минералов, флюидным включениям, стабильным изотопам, интерпретация которых проводится с точки зрения геолого-гененетического моделирования на современном научном уровне, позволяющем судить об условиях формирования месторождения.
Монография представляет интерес для специалистов в области геологии рудных месторождений, минералогии и геохимии.

Месторождение Ушкатын-III находится в Центральном Казахстане, в 300 км к западу от г. Караганда. Месторождение локализовано в борту эпиконтинентального палеорифта, сформированного во временно интервале верхний девон — нижний карбон. Продуктивными являются карбонатные отложения верхнего девона, вмещающие стратиформные залежи гидротермальных барит-свинцовых и гидротермально-осадочных железных и марганцевых руд.