Download or read book Rocks for Crops written by H. Peter Van Straaten and published by Guelph, Ont. : Department of Land Resource Science, University of Guelph. This book was released on 2002 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Introstat written by Les Underhill and published by Juta and Company Ltd. This book was released on 1996-12-31 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to applied statistics, this text assumes a basic understanding of differentiation and integration.

Download or read book UNESCO General History of Africa Vol I Abridged Edition written by Jacqueline Ki-Zerbo and published by Univ of California Press. This book was released on 1990 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume covers the period from the end of the Neolithic era to the beginning of the seventh century of our era. This lengthy period includes the civilization of Ancient Egypt, the history of Nubia, Ethiopia, North Africa and the Sahara, as well as of the other regions of the continent and its islands."--Publisher's description

Download or read book Critical Mineral Resources of the United States written by K. J. Schulz and published by Geological Survey. This book was released on 2017 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the importance and dependence of specific mineral commodities increase, so does concern about their supply. The United States is currently 100 percent reliant on foreign sources for 20 mineral commodities and imports the majority of its supply of more than 50 mineral commodities. Mineral commodities that have important uses and face potential supply disruption are critical to American economic and national security. However, a mineral commodity's importance and the nature of its supply chain can change with time; a mineral commodity that may not have been considered critical 25 years ago may be critical today, and one considered critical today may not be so in the future. The U.S. Geological Survey has produced this volume to describe a select group of mineral commodities currently critical to our economy and security. For each mineral commodity covered, the authors provide a comprehensive look at (1) the commodity's use; (2) the geology and global distribution of the mineral deposit types that account for the present and possible future supply of the commodity; (3) the current status of production, reserves, and resources in the United States and globally; and (4) environmental considerations related to the commodity's production from different types of mineral deposits. The volume describes U.S. critical mineral resources in a global context, for no country can be self-sufficient for all its mineral commodity needs, and the United States will always rely on global mineral commodity supply chains. This volume provides the scientific understanding of critical mineral resources required for informed decisionmaking by those responsible for ensuring that the United States has a secure and sustainable supply of mineral commodities.

Download or read book Agrogeology written by Peter Van Straaten and published by . This book was released on 2007 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agrogeology is the study of minerals of importance to farming and horticulture, especially with regards to soil fertility and fertilizer components. This book provides background information on the relationships between rocks, soils and plants. It is based on a university course in Agrogeology taught at the University of Guelph.

Download or read book Geological Atlas of Africa written by Thomas Schlüter and published by Springer Science & Business Media. This book was released on 2008-04-19 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: T is atlas is intended primarily for anybody who is in-some background for the arrangement of how the terested in basic geology of Africa. Its originality lies atlas was done. T e second chapter is devoted to the in the fact that the regional geology of each African history of geological mapping in Africa, necessary nation or territory is reviewed country-wise by maps for a fuller appreciation of why this work in Africa is and text, a view normally not presented in textbooks worth doing. Chapter 3 provides an executive s- of regional geology. It is my belief, that there has long mary on the stratigraphy and tectonics of Africa as a been a need in universities and geological surveys, whole, i. e. in the context of no political boundaries. both in Africa and in the developed world, for sum- T e main part of the atlas lies in Chapter 4, where in marizing geological maps and an accompanying basic alphabetical order each African country or territory text utilising the enormous fund of knowledge that is presented by a digitized geological overview map has been accumulated since the beginning of geologi- and an accompanying text on its respective strat- th cal research in Africa in the mid-19 century. I hope raphy, tectonics, economic geology, geohazards and that, in part, the present atlas may satisfy this need. geosites. A short list of relevant references is also a- ed.

Download or read book Geology and Recognition Criteria for Uranium Deposits of the Quartz pebble Conglomerate Type written by A. Button and published by . This book was released on 1980 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Critical Metals Handbook written by Gus Gunn and published by John Wiley & Sons. This book was released on 2014-01-06 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mankind is using a greater variety of metals in greater quantities than ever before. As a result there is increasing global concern over the long-term availability of secure and adequate supplies of the metals needed by society. Critical metals, which are those of growing economic importance that might be susceptible to future scarcity, are a particular worry. For many of these we have little information on how they are concentrated in the Earth’s crust, how to extract them from their ores, and how to use, recycle and dispose of them effectively and safely. Published with the British Geological Survey, the Critical Metals Handbook brings together a wealth of knowledge on critical metals and provides a foundation for improving the future security and sustainability of critical metal supplies. Written by international experts, it provides a unique source of authoritative information on diverse aspects of the critical metals, including geology, deposits, processing, applications, recycling, environmental issues and markets. It is aimed at a broad non-specialist audience, including professionals and academics working in the exploration and mining sectors, in mining finance and investment, and in mineral processing and manufacturing. It will also be a valuable reference for policy makers concerned with resource management, land-use planning, eco-efficiency, recycling and related fields.

Download or read book Survival Migration written by Alexander Betts and published by Cornell University Press. This book was released on 2013-08-15 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: International treaties, conventions, and organizations to protect refugees were established in the aftermath of World War II to protect people escaping targeted persecution by their own governments. However, the nature of cross-border displacement has transformed dramatically since then. Such threats as environmental change, food insecurity, and generalized violence force massive numbers of people to flee states that are unable or unwilling to ensure their basic rights, as do conditions in failed and fragile states that make possible human rights deprivations. Because these reasons do not meet the legal understanding of persecution, the victims of these circumstances are not usually recognized as "refugees," preventing current institutions from ensuring their protection.In this book, Alexander Betts develops the concept of "survival migration" to highlight the crisis in which these people find themselves. Examining flight from three of the most fragile states in Africa—Zimbabwe, the Democratic Republic of Congo, and Somalia—Betts explains variation in institutional responses across the neighboring host states. There is massive inconsistency. Some survival migrants are offered asylum as refugees; others are rounded up, detained, and deported, often in brutal conditions. The inadequacies of the current refugee regime are a disaster for human rights and gravely threaten international security. In Survival Migration, Betts outlines these failings, illustrates the enormous human suffering that results, and argues strongly for an expansion of protected categories.

Download or read book South Africa and the Transvaal War written by Louis Creswicke and published by . This book was released on 1900 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Archean Crustal Evolution written by K.C. Condie and published by Elsevier. This book was released on 1994-11-11 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: The integration of Tectonics/Geochemistry, up-to-date reviews by leading scientists as well as a broad topical coverage of the Archean, are some of the features of this particular volume. As geochronology has progressed in the last 20 years, the Archean has continued to attract interest. Advancements in the understanding of Archean crustal and mantle evolution have progressed rapidly since the first International Archean Symposium in Western Australia (1970). The landmark for the Archean was the NATO Advanced Study Institute at Leicester (1975). At this meeting the Archean truly "came of age". Investigators from many different disciplines focused their expertise on the early history of the earth. For the first time, the nature of the atmosphere, oceans, and life during the Archean was an important part of an Archean symposium. During the most recent Archean Symposium in Perth in 1990, there was a shift in interest from field and trace element data to the new rapidly evolving high-precision U/Pb geochronology of Archean rocks and to detailed structural studies of both low and high grade Archean terrains. The terrane concept so widely applied to the Phanerozoic was proposed for the Archean Yilgarn Province in Western Australia and is now widely accepted for the Archean (as evident by the articles in this book). Plate tectonics is now widely accepted as the principal process that controls the history of continents and oceans. There are, though, well substantiated differences between Archean and post-Archean rocks that indicate that Archean tectonic regimes must have differed in some respects from modern ones. The question of how and to what degree did Archean plate tectonics differ from modern plate tectonics is treated in many of the chapters of this book. Altogether, the editor has presented a selection of articles that provide a fascinating insight into the latest observations in this field.

Download or read book From Memory to Marble written by Elizabeth Rankin and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-02-10 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the first time, the 92-metre frieze of the Voortrekker Monument in Pretoria, one of the largest historical narratives in marble, has been made the subject of a book. The pictorial narrative of the Boer pioneers who conquered South Africa’s interior during the 'Great Trek' (1835-52) represents a crucial period of South Africa’s past. Conceptualising the frieze both reflected on and contributed to the country’s socio-political debates in the 1930s and 1940s when it was made. The book considers the active role the Monument played in the rise of Afrikaner nationalism and the development of apartheid, as well as its place in post-apartheid heritage. The frieze is unique in that it provides rare evidence of the complex processes followed in creating a major monument. Based on unpublished documents, drawings and models, these processes are unfolded step by step, from the earliest discussions of the purpose and content of the frieze, through all the stages of its design, to its shipping to post-war Italy to be copied into marble from Monte Altissimo, up to its final installation in the Monument. The book examines how visual representation transforms historical memory in what it chooses to recount, and the forms in which it is depicted. The second volume expands on the first, by investigating each of the twenty-seven scenes of the frieze in depth, providing new insights into not only the frieze, but also South Africa’s history. François van Schalkwyk of African Minds, co-publisher with De Gruyter writes: From Memory to Marble is an open access monograph in the true sense of the word. Both volumes of the digital version of the book are available in full and free of charge from the date of publication. This approach to publishing democratises access to the latest scholarly publications across the globe. At the same time, a book such as From Memory to Marble, with its unique and exquisite photographs of the frieze as well as its wealth of reproduced archival materials, demands reception of a more traditional kind, that is, on the printed page. For this reason, the book is likewise available in print as two separate volumes. The printed and digital books should not be seen as separate incarnations; each brings its own advantages, working together to extend the reach and utility of From Memory to Marble to a range of interested readers.

Download or read book Flowering Plants Eudicots written by Joachim W. Kadereit and published by Springer. This book was released on 2016-04-09 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume covers the orders Boraginales, Garryales and Solanales (except Convolvulaceae) of the Lamiids (Asterids I) as well as three unplaced families of that clade, i.e. Vahliaceae, Icacinaceae and Metteniusaceae, and the orders Aquifoliales, Escalloniales, Bruniales, Dipsacales and Paracryphiales of the Campanulids (Asterids II). It is the first of two final volumes to (almost) complete the treatment of the Asterids, which started with Vol. VI (Cornales, Ericales, 2004) and continued with Vol. VII (Lamiales, 2004) and Vol. VIII (Asterales, 2007). The present volume provides descriptions for 35 families and altogether 340 genera, including three genera of somewhat uncertain family affiliation. It provides identification keys for families within orders and for all genera within families, and also discusses probable phylogenetic relationships. The wealth of information contained in this volume makes it an indispensable source for all those working in pure and applied plant sciences.

Download or read book Evaporites written by John K. Warren and published by Springer. This book was released on 2016-05-18 with total page 1822 pages. Available in PDF, EPUB and Kindle. Book excerpt: The monograph offers a comprehensive discussion of the role of evaporites in hydrocarbon generation and trapping, and new information on low temperature and high temperature ores. It also provides a wealth of information on exploitable salts, in a comprehensive volume has been assembled and organized to provide quick access to relevant information on all matters related to evaporites and associated brines. In addition, there are summaries of evaporite karst hazards, exploitative methods and problems that can arise in dealing with evaporites in conventional and solution mining. This second edition has been revised and extended, with three new chapters focusing on ore minerals in different temperature settings and a chapter on meta-evaporites. Written by a field specialist in research and exploration, the book presents a comprehensive overview of the realms of low- and high-temperature evaporite evolution. It is aimed at earth science professionals, sedimentologists, oil and gas explorers, mining geologists as well as environmental geologists.

Download or read book Serpentine and Its Vegetation written by R. R. Brooks and published by . This book was released on 1987 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: An exhaustive worldwide survey of serpentine soils and the characteristic vegetation that they support. It includes a continent-by-continent listing of known serpentine locations.

Download or read book Transactions of the Geological Society of South Africa written by Geological Society of South Africa and published by . This book was released on 1908 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mineral Deposits of Southern Africa written by C. R. Anhaeusser and published by . This book was released on 1986 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt: