Download or read book Geological Survey Bulletin written by and published by . This book was released on 1969 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Manganese Ores of Supergene Zone Geochemistry of Formation written by I.M. Varentsov and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major part of the world's high grade industrial manganese ore is being mined in supergene deposits. This book represents the first attempt to bring together not only academic but also commercial data on all aspects of the geochemistry of formation of supergene manganese ores. It is a distinctive account of the geology, geochemistry, mineralogy, experimental modelling studies, mechanisms of formation processes and geochemical evolution through geological time of manganese ores for all types of supergene deposits. Special emphasis is placed on the general geochemical model of supergene manganese ore formation, which can be applied in geochemical exploration. Despite the fact that supergene manganese ores have been used by mankind since the early centuries, it is only during the last decade that a comprehensive understanding of the nature of geochemical processes of formation of these deposits has become available and their potential as an economic resource has been recognized against other genetical types of manganese accumulations. Audience: This substantial and comprehensive volume is of interest to economic geologists, mining engineers, geochemists, mineralogists and other specialized geoscientists.

Download or read book Mn Manganese written by Wolfgang Töpper and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present volume is the first of a series describing Mn minerals. There has been no attempt to provide a thorough (bibliographically complete) coverage of the literature. Rather, a selection of papers was undertaken to cover especially the various aspects of occurrence and genesis. Papers that only mention an occurrence of a minerat species without additional data will not be taken into account, except if they represent an unusual type of occurrence. The volume starts with a brief outline of the chemical and geo-/cosmochemical character istics of Mn; its abundance and distribution in the cosmos and on earth; and its distribution in minerals. The main part describes the native metal, its solid solutions with Fe or Al, and silicides and carbide; the sulfides and related compounds; the halogenides and oxyhalogenides; and the oxides of type MO. The minerat descriptions comprise the following topics: occurrence (comprising data on paragenesis, intergrowths, inclusions, and alteration); chemistry (comprising complete analysis, formula, diadochy, and the relationship be tween composition and type of geological occurrence or composition and physical proper lies); crystal form and structure; optical and other physical properties; and chemical and thermal behavior. Frankfurt am Main Wolfgang Töpper April 1993 Table of Contents Page 1 Natural Occurrence, Minerals . . . . . . . . . . . . . . . . . . .

Download or read book The Rift Valleys and Geology of East Africa written by John Walter Gregory and published by . This book was released on 1921 with total page 1018 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Classifications and Historical Studies written by Bozzano G Luisa and published by Elsevier. This book was released on 2012-12-02 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Classifications and Historical Studies is a collection of papers dealing with theoretical and applied ore petrology. One paper discusses the use of conceptual models in geology such as the diagrammatic/pictorial, the flow-chart, and the tabular types of conceptualizations. Another paper describes some transitional types of mineral deposits in volcanic and sedimentary rocks. Concentrations of copper minerals and commonly associated metals form deposits associated with orogenic belts and cratonic regions. The paper points out that many major groups of mineral deposits grade into other groups through occurrences with intermediate or transitional characteristics. It suggests a classification method of mineral deposits based on the observable features of the mineral deposits rather than their inferred genesis. One paper reviews the theory of magmatic—hydrothermal replacement origin of stratiform sulfide ore bodies. The review covers concepts of certain major ore deposits as being independent and isolated phenomena to regarding a wide range of deposits as contemporaneous, indigenous, and related to their environments. Another paper points out that according to North American geologists, certain types of ore deposits are formed syngenetically and are subjected to the same metamorphic events that affect the ores in which they are enclosed. The collection can be valuable to researchers, technical designers, or engineers whose works are related with oil refinery and fossil fuels, as well as to students majoring in geology.

Download or read book Minerals Yearbook written by and published by . This book was released on 1962 with total page 1444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of North American Geology written by and published by . This book was released on 1965 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.

Download or read book Marine Manganese Deposits written by and published by Elsevier. This book was released on 1977-01-01 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Manganese Deposits

Download or read book Geological Survey Professional Paper written by and published by . This book was released on 1969 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mineral Industries Bulletin written by and published by . This book was released on 1959 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of North American Geology written by Geological Survey (U.S.) and published by . This book was released on 1965 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1785/1918 includes material issued previously in the annual Bibliography of North America geology, and in cumulative volumes issued by N. H. Darton and F. B. Weeks. 1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.

Download or read book Biographical Memoirs written by National Academy of Sciences and published by National Academies Press. This book was released on 1974-01-01 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biographic Memoirs: Volume 44 contains the biographies of deceased members of the National Academy of Sciences and bibliographies of their published works. Each biographical essay was written by a member of the Academy familiar with the professional career of the deceased. For historical and bibliographical purposes, these volumes are worth returning to time and again.

Download or read book General and Engineering Geology of the Northern Part of Pueblo Colorado written by Glenn R. Scott and published by . This book was released on 1969 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Description of the geology of the bedrock and surficial deposits in and near Pueblo, Colo. Engineering behavior of the rocks is summarized at the end of report.

Download or read book Mineral and Water Resources of Idaho written by Geological Survey (U.S.) and published by . This book was released on 1964 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Translations written by and published by . This book was released on 1960 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hearings Reports and Prints of the Senate Committee on Public Works written by United States. Congress. Senate. Committee on Public Works and published by . This book was released on 1963 with total page 1420 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology of the Lake Peters Area Northeastern Brooks Range Alaska written by Bruce L. Reed and published by . This book was released on 1968 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: The stratigraphy, petrology, structural geology, and glacial history of the sedimentary and low-grade metamorphic rock sequence in the Lake Peters area.