Author: Melville J. Herskovits Library of African Studies
Publisher:
ISBN:
Category : Africa
Languages : en
Pages : 774

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Author:
Publisher:
ISBN:
Category : Africa
Languages : en
Pages : 668

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Book Description

Author: Ralph Jackson Roberts
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 226

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Book Description

Author: Government Publishing Office
Publisher:
ISBN: 9781411343627
Category : Science
Languages : en
Pages : 202

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Book Description
Mineral Commodity Summaries 2019

Author:
Publisher:
ISBN:
Category : Irrigation
Languages : en
Pages : 638

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Book Description

Author: Thomas T. Veblen
Publisher: Oxford University Press
ISBN: 0190286059
Category : Science
Languages : en
Pages : 750

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Book Description
The Physical Geography of South America, the eighth volume in the Oxford Regional Environments series, presents an enduring statement on the physical and biogeographic conditions of this remarkable continent and their relationships to human activity. It fills a void in recent environmental literature by assembling a team of specialists from within and beyond South America in order to provide an integrated, cross-disciplinary body of knowledge about this mostly tropical continent, together with its high mountains and temperate southern cone. The authors systematically cover the main components of the South American environment - tectonism, climate, glaciation, natural landscape changes, rivers, vegetation, animals, and soils. The book then presents more specific treatments of regions with special attributes from the tropical forests of the Amazon basin to the Atacama Desert and Patagonian steppe, and from the Atlantic, Caribbean, and Pacific coasts to the high Andes. Additionally, the continents environments are given a human face by evaluating the roles played by people over time, from pre-European and European colonial impacts to the effects of modern agriculture and urbanization, and from interactions with El Niño events to prognoses for the future environments of the continent.

Author: Jacques Varet
Publisher: Springer
ISBN: 3319608657
Category : Science
Languages : en
Pages : 345

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Book Description
This book summarizes the geological knowledge accumulated on Afar in the last 60 years, demonstrating that it is, and will remain, a real “hot spot” for geological and geophysical research. It provides insights into the Earth processes along diverging plate boundaries, the study of both the continental and oceanic lithosphere and underlying asthenosphere, and margins and transitions including magmatic, volcanic, tectonic, sedimentary, hydrothermal and geodynamic processes. The Afar triangle is a geological depression that developed where the Gulf of Aden, Red Sea and East African Rift Valley meet. It is considered to be one of the Earth system’s most important mantle plumes. In 1967, when the first expedition was organized, there was little information on the geology of the area, and even geographic base maps were lacking. However, the first satellite photographs from the Apollo and Gemini space missions offered a complete picture of the Red Sea-Gulf of Aden region, providing a new vision of the Afar triangle. The book describes the unique geological features that make Afar the only place in the world where an oceanic plate boundary with all its successive steps of development can be observed in the open air. It also presents the Afar triangle as one of the cradles of first, now extinct hominids. The Middle Awash area contains sites of several fossil discoveries, such as the well-known Lucy. The hydrothermal processes in Afar provide conditions suitable for the study of the most primitive forms of life (archaebacterial) and it is also one of the few places where significant quantities of telluric energy are available at the surface for geothermal development. Further, the area has economically interesting mineral deposits and illustrates a number of current climate change issues. In addition to providing geological information, the book shows that Afar is an area where an individual human population developed with its own language and culture, and which adapted to the rugged landscape and extremely dry and hot climate. It is a valuable resource for scientists and students, and also serves the needs of the Afar nation, currently split in three different countries as a result of recent historical events.

Author: Graham R. Thompson
Publisher: Cengage Learning
ISBN:
Category : Science
Languages : en
Pages : 436

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Book Description
This text is a brief version of Thompson & Turk's "Modern Physical Geology". It offers professors a more streamlined alternative to the longer introductory text. It emphasizes human-environment interactions and discusses the latest research in physical geology.

Author: Rachel Bevan
Publisher: Building Research Establishment
ISBN: 9781848060333
Category : Technology & Engineering
Languages : en
Pages : 111

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Book Description
Comprehensive guidance on using hemp lime for housing and low-rise buildings is given for the first time in this book, which is full of practical information on materials, design and construction.

Author: Paul E. Vandor
Publisher:
ISBN:
Category : Fresno County (Calif.)
Languages : en
Pages : 1320

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