Download or read book Recent Progress in the Thawing of Frozen Gravel in Placer Mining Classic Reprint written by Charles Janin and published by Forgotten Books. This book was released on 2016-11-05 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Recent Progress in the Thawing of Frozen Gravel in Placer Mining Dredging methods for gold placers and the construction and opera tion of gold dredges were described in Bulletins 121 1 and 127 2 of the Bureau of Mines. The working of frozen gravels, a special problem in placer mining, has received much attention in Alaska and the Yukon Territory, and the methods evolved there are described in this paper. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Recent Progress in the Thawing of Frozen Gravel in Placor Mining by Charles Janin written by Charles Janin and published by . This book was released on 1922 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dams and Public Safety written by Robert B. Jansen and published by . This book was released on 1980 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alluvial Mining written by Institution of Mining and Metallurgy (Great Britain) and published by Elsevier Applied Science. This book was released on 1991 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Years of adventure 1874 1920 written by Herbert Hoover and published by . This book was released on 1951 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quarrying Opencast and Alluvial Mining written by John Sinclair and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quarrying and all other branches of surface mining rather than diminishing in importance have become of more and more consequence economically, industrially and particularly with the depletion of high-grade deep-mined mineral reserves. Low-grade minerals require low cost extraction and this in many cases necessitates very expensive mechanized equipment with the cost of individual units running into millions of pounds in the case of large scale operations with high productivity. There has been, and there still is, a tendency for the smaller single quarries to be amalgamated into groups with large financial resources and therefore with the ability to purchase these expensive machines so necessary to make operations viable. This in turn requires wider administrative and technical knowledge in executives of these groups and as these often handle a wide range of products from widely differing systems of working, this technical knowledge should embrace the exploitation of many different types of deposits. There is, at present, a great dearth throughout the world of such qualified executives as is apparent from advertisements of vacancies in the technical press. It would appear that these industries offer an attractive career to the widely qualified and experienced technologist in these fields. This book deals with methods of working in the surface extractive indus tries, quarry management and power supply-but does not deal with related ancillary processes except where these affect quarrying operations.
Download or read book Sedimentology and Stratigraphy written by Gary Nichols and published by John Wiley & Sons. This book was released on 2013-04-30 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fully revised and updated edition introduces the reader to sedimentology and stratigraphic principles, and provides tools for the interpretation of sediments and sedimentary rocks. The processes of formation, transport and deposition of sediment are considered and then applied to develop conceptual models for the full range of sedimentary environments, from deserts to deep seas and reefs to rivers. Different approaches to using stratigraphic principles to date and correlate strata are also considered, in order to provide a comprehensive introduction to all aspects of sedimentology and stratigraphy. The text and figures are designed to be accessible to anyone completely new to the subject, and all of the illustrative material is provided in an accompanying CD-ROM. High-resolution versions of these images can also be downloaded from the companion website for this book at: www.wiley.com/go/nicholssedimentology.
Download or read book A Dictionary of Mining Mineral and Related Terms written by United States. Bureau of Mines and published by . This book was released on 1968 with total page 1284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes about 55,000 individual mining and mineral industry term entries with about 150,000 definitions under these terms.
Download or read book Ten Thousand Miles with a Dog Sled written by Hudson Stuck and published by . This book was released on 1914 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book El Vino Y la Vi a written by P. T. H. Unwin and published by Psychology Press. This book was released on 1991 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an introduction to the historical geography of viticulture and the wine trade from prehistory to the present, considering wine as a symbol, rich in meaning and a commercial product of great economic importance to specific regions.
Download or read book Integrated Materials and Construction Practices for Concrete Pavement written by and published by . This book was released on 2006 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manual of integrated material and construction practices for concrete pavements.
Download or read book The Peaches of New York written by U. P. Hedrick and published by . This book was released on 1917 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Geology for Engineers written by F.G.H. Blyth and published by CRC Press. This book was released on 2017-12-21 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: No engineering structure can be built on the ground or within it without the influence of geology being experienced by the engineer. Yet geology is an ancillary subject to students of engineering and it is therefore essential that their training is supported by a concise, reliable and usable text on geology and its relationship to engineering. In this book all the fundamental aspects of geology are described and explained, but within the limits thought suitable for engineers. It describes the structure of the earth and the operation of its internal processes, together with the geological processes that shape the earth and produce its rocks and soils. It also details the commonly occurring types of rock and soil, and many types of geological structure and geological maps. Care has been taken to focus on the relationship between geology and geomechanics, so emphasis has been placed on the geological processes that bear directly upon the composition, structure and mechanics of soil and rocks, and on the movement of groundwater. The descriptions of geological processes and their products are used as the basis for explaining why it is important to investigate the ground, and to show how the investigations may be conducted at ground level and underground. Specific instruction is provided on the relationship between geology and many common activities undertaken when engineering in rock and soil.
Download or read book History of Soy Ice Cream and Other Non Dairy Frozen Desserts 1899 2013 written by William Shurtleff and published by Soyinfo Center. This book was released on 2013-10-18 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Glacial Geology written by N. Eyles and published by Elsevier. This book was released on 2013-10-22 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction for courses that involve some knowledge of glacial geology and sediments of formerly glaciated terrains. The early chapters describe depositional processes at modern glacier and ice-sheet margins relating sediments and landforms in recurring "landsystems". Later chapters portray the distribution of these landsystems in Pleistocene glaciated terrains of the mid-latitudes, focussing on commonly encountered problems in various fields from stratigraphic and sedimentological investigations to construction problems relating to roads and dams. The resulting text is a summation of a large body of literature previously accessible only to specialists. A substantial reference list is complemented by cross-references throughout.
Download or read book On Naval Timber and Arboriculture written by Patrick Matthew and published by . This book was released on 1831 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geomorphological Techniques written by Andrew Goudie and published by Routledge. This book was released on 2003-09-02 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: The specialist contributors to Geomorphological Techniques have thoroughly augmented and updated their original, authoritative coverage with critical evaluations of major recent developments in this field. A new chapter on neotectonics reflects the impact of developments in tectonic theory, and heavily revised sections deal with advances in remote sensing, image analysis, radiometric dating, geomorphometry, data loggers, radioactive tracers, and the determination of pore water pressure and the rates of denudation.
