The present study is a report on the volcanic deposits which form the southern part of the Absaroka Range and which occur in the adjoining region in northwestern T/yoraing* This investigation has been undertaken with the object of eliminating discrepancies in correlation within the lower subdivisions of the Absaroka Range, chiefly between the Bighorn and Wind River basins.

Soil Mechanics: Basic Concepts and Engineering Applications is primarily designed as a main text for university students taking first degree courses in civil engineering as well as environmental and agricultural engineering. Emphasis is placed on presenting fundamental behaviour before more advanced topics are introduced. The special structure of the book, embodied in each chapter, makes it possible to be used in two, three and four year undergraduate courses in soil mechanics. However, as new and advanced topics that extend beyond standard undergraduate courses are included, the book will also be a valuable resource for the practicing professional engineer. A problem solving approach is adopted through all chapters and 152 worked examples demonstrate the engineering applications, simulate problem solving learning and facilitate self-teaching. There are 113 unsolved problems with answers set for solution by students.

Изложены основные требования по технологии и механизации земляных работ в различных условиях, в том числе при реконструкции производственных предприятий в условиях сложившейся городской застройки, обводненных и мерзлых грунтов и др. Описаны рациональные средства механизации, оборудование и приспособления. 

Для рабочих строительных специальностей.

Phase diagrams mean more to the metallurgist than mere graphical records of the physical states of matter. They provide a medium of expression and thought that simplifies and makes intelligible the otherwise bewildering pattern of change that takes place as elemental substances are mixed one with another and are heated or cooled, compressed or expanded. They illumine relationships that assist us in our endeavor to exercise control over the behavior of matter. These are no accidental by-products of a system devised primarily for the recording of physical data. They exist because the basic features of construction of all phase diagrams are dictated by a single natural law, the phase rule of J. Willard Gibbs, which relates the physical state of a mixture with the number of substances of which it is composed and with the environmental conditions imposed upon it. <...>

The Asian continent is the main part of the greatest continental plate—Eurasian plate, on the Earth. The Asian continent covers the tremendous area and has a very long geological history, complex intraplate deformations, a lot of mineral resources and the changeable ecologic environment. Researching the Asian tectonics, which plays a dominant role in the resources and environments, is an interesting subject. With the rapid development of society and economy, it is becoming more and more important, interesting and urgent to re-recognize and understand the relationship between the Asia tectonic evolution and giant ore deposit (including giant or supergiant ore fields and provinces) from the perspective of lithospheric plate tectonics.

Copper is most commonly present in the earth’s crust as coppereironesulfide and copper sulfide minerals, such as chalcopyrite (CuFeS2) and chalcocite (Cu2S). The concentration of these minerals in an ore body is low. Typical copper ores contain from 0.5% Cu (open pit mines, Fig. 1.1) to 1 or 2% Cu (underground mines). Pure copper metal is mostly produced from these ores by concentration, smelting, and refining (Fig. 1.2). Copper also occurs to a lesser extent in oxidized minerals (carbonates, oxides, hydroxy-silicates, sulfates). Copper metal is usually produced from these minerals by leaching, solvent extraction, and electrowinning (Fig. 1.3). These processes are also used to treat chalcocite (Cu2S).
A third major source of copper is scrap copper and copper alloys. Production of copper from recycled used objects is 10 or 15% of mine production. In addition, there is considerable re-melting/re-refining of scrap generated during fabrication and manufacture. Total copper production in 2010 (mined and from end-of-use scrap) was ~20 million tonnes. <...>

This book describes extraction of nickel, cobalt and platinum-group metals. The starting point is ore-in-place and the finishing point is high-purity metals and chemicals.
We have combined the description of these metals in one book because they very often occur together, are extracted together and have similar properties.
The objectives of the book are to:

(a) describe how these metals occur and are extracted;
(b) explain why these extraction processes have been chosen;
(c) indicate how the processes can be operated most efficiently, with minimal impact on the environment; and,
(d) suggest future improvements.

As explained in Preface, this book is a selfcontained member of a broader knowledge system on the world's mineral deposits and their settings I have been developing and experimenting with for more than 40 years. It is a product of global firsthand information gathering in the field and "data mining" from the literature, followed by sorting and organization into interrelated sets searchable and accessible by the rapidly evolving techniques of modern information technology.

Post-Collisional Magmatism and Its Relationship to Late-Variscan Ore Forming Processes in the Erzgebirge (Bohemian Massif)

Постколлизионный магматизм и его связь с поздневарисканскими рудообразующими процессами в Эрцгебирге (Богемский массив)

The main goal of this contribution is to document the possible importance of post-collisional lamprophyre intrusions for late-Variscan ore mineralization in the Erzgebirge (Germany and Czech Republic). Located at the northwestern border of the Bohemian massif in the Internal Variscides, the Erzgebirge is one of the most important silver, tin, tungsten, uranium, lead, zinc, copper, indium, bismuth, cobalt, and fluorite ore deposit provinces in Europe with a mining history of more than 800 years. Because of the close spatial association between late-Variscan ore mineralization and Permo-Carboniferous lamprophyric and rhyolitic intrusions the Erzgebirge is one of the key localities to study the genetic relationship of epigenetic Sn-W-Mo, Ag-base metal, and U deposits with post-collisional, mantle derived magmatic pulses.