Holocene Palaeoenvironmental History of the Central Sahara PDF Download

Author: Roland Baumhauer
Publisher: CRC Press
ISBN: 0203874897
Category : Nature
Languages : en
Pages : 274

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Book Description
The environmental setting within the Central Sahara was subject to considerable changes during Late Quaternary, mainly driven by major global climate variations, although human impact increased constantly since Early Holocene.Such global events can be reconstructed with the help of reliefs, sediments and palaeosoils and their specific morphological

Author: Marcel Leroux
Publisher: Springer Science & Business Media
ISBN: 9783540426363
Category : Science
Languages : en
Pages : 604

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Book Description
This unique book includes 250 maps related to various factors of meteorology and climate and their effects on the African continent. It provides detailed coverage of fundamentally important issues concerning African meterology, climatology, tropical circulation, rainfall, drought and climate change.

Author: Sarah E. Metcalfe
Publisher: John Wiley & Sons
ISBN: 1118336178
Category : Science
Languages : en
Pages : 826

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Book Description
The global climate changes that led to the expansion and contraction of high latitude ice sheets during the Quaternary period were associated with equally dramatic changes in tropical environments. These included shifts in vegetation zones, changes in the hydrology and ecology of lakes and rivers, and fluctuations in the size of mountain glaciers and sandy deserts. Until recently it was thought that such changes were triggered by fluctuations in the distribution of polar ice cover. Now there is increasing recognition that the tropics themselves have acted as drivers of global climate change over a range of timescales. The aim of Quaternary Environmental Change in the Tropics is to provide a synthesis of the changes that occurred in tropical terrestrial and marine systems during the Pleistocene and Holocene, complementing data-derived reconstructions with output from state-of-the-art climate models. It is targeted at final-year undergraduate students and research specialists, but will provide an introduction to tropical Quaternary research for a variety of other readers.

Author: Jürgen Runge
Publisher: CRC Press
ISBN: 1351666398
Category : Nature
Languages : en
Pages : 410

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Book Description
During the Neogene – covering the last 23 Million years – the evolution of the environmental setting in Africa was subject to considerable changes. Natural shifts, slow and rapid, evidenced by modifications in palaeogeography, geodynamics, climate, and vegetation have caused repeated and strong changes of ecosystems in the lower latitudes. Using a variety of proxy data – researched and applied by many authors from numerous disciplines – an attempt is made to reconstruct African landscapes over space and time. Besides such spatio-temporal oscillations in recently humid, semi-humid, and dry areas of Africa, this volume of Palaeoecology of Africa (PoA) focuses on long term interrelationships between ecosystem dynamics and climate change, not ignoring the ever growing and ongoing influence of humans on natural ecosystems since the Quaternary. Regionally, this volume lays a strong focus on Nigeria (Niger Delta). Facing the omnipresent challenges of Global Change, an increasing number of African scientists is involved in palaeoenvironmental and palaeoclimatic research, both theoretical and applied. PoA systematically supports established as well as junior African scientists in the field of sustainable cooperation and academic capacity building. This book will be of interest to all concerned with or interested in up-to-date research on Neogene to Quaternary low latitudes ecosystem changes and their respective interpretation in the framework of natural climate and vegetation change evidenced by a variety of methods that allow to read and learn from the past by following the motto, "The geologic foretime as the key to the present, and possibly to the future." Palynologists, Geologists, Geographers, Archaeologists, and Geomorphologists will find this edition equally useful for their work.

Author: David Evans
Publisher: Routledge
ISBN: 1136801502
Category : Reference
Languages : en
Pages : 579

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Book Description
This volume, also available as part of the collection "Geomorphology: Critical Concepts in Geography" constitutes an instant archive of esential benchmark papers and makes available in one place key published material on its area..

Author: Pierre M. Desrosiers
Publisher: Springer Science & Business Media
ISBN: 1461420024
Category : Social Science
Languages : en
Pages : 534

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Book Description
Human development is a long and steady process that began with stone tool making. Because of this skill, humans were able to adapt to climate changes, discover new territories, and invent new technologies. "Pressure knapping" is the common term for one method of creating stone tools, where a larger device or blade specifically made for this purpose is use to press out the stone tool. Pressure knapping was invented in different locations and at different points in time, representing the adoption of the Neolithic way of life in the Old world. Recent research on pressure knapping has led for the first time to a global thesis on this technique. The contributors to this seminal work combine research findings on pressure knapping from different cultures around the globe to develope a cohesive theory. This contributions to this volume represents a significant development to research on pressure knapping, as well as the field of lithic studies in general. This work will be an important reference for anyone studying the Paleolithic, Mesolithic, and Neolithic periods, lithic studies, technologies, and more generally, cultural transmission.

Author: J.A.K. Coetzee
Publisher: Taylor & Francis
ISBN: 1351425994
Category : Science
Languages : en
Pages : 186

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Book Description
This reference provides up-to-date information on research in many different disciplines which give an overall insight into the environmental history of Africa.

Author: Ian Douglas
Publisher: Routledge
ISBN: 0429558112
Category : Science
Languages : en
Pages : 378

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Book Description
The tropics provide the key to understanding much biological and Earth science. This is particularly true for the study of landforms, which in higher latitudes suffer great seasonal contrasts in process intensity and type, and which often in the past underwent the dramatic changes of glaciation and periglaciation. Yet studies in the tropics have shown that the legacy of past climate changes is much more dramatic than was formerly believed. This book, first published in 1985, brings together the variety of evidence about such environmental changes, over a variety of timescales, and sets it against the current knowledge of the nature of geomorphic processes in the tropics.

Author: John Desmond Clark
Publisher: Univ of California Press
ISBN: 9780520045743
Category : Social Science
Languages : en
Pages : 450

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Book Description

Author: Bassey Andah
Publisher: Routledge
ISBN: 1134679424
Category : Social Science
Languages : en
Pages : 896

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Book Description
Africa has a vibrant past. It emerges from this book as the proud possessor of a vast and highly complicated interweaving of peoples and cultures, practising an enormous diversity of economic and social strategies in an 2xtraordinary range of environmental situations. At long last the archaeology of Africa has revealed enough of Africa's unwritten past to confound preconceptions about this continent and to upset the picture inferred from historic written records. Without an understanding of its past complexities, it is impossible to grasp Africa's present, let alone its future.