Format:
Online-Ressource (XIV, 283 p. 116 illus., 96 illus. in color, digital)
ISBN:
9783642303913
Series Statement:
Springer Hydrogeology
Content:
This book provides a comprehensive description of groundwater resources in Ethiopia and its various dimensions (groundwater as resource, environmental functions, and socioeconomics). The prevailing knowledge of groundwater resources in Ethiopia (or elsewhere in Sub Saharan Africa) was based on geological and stratigraphic framework known nearly four decades ago (mainly 1960's and 70's). Thanks to the substantial geoscientific research since the 70's a new set of relevant geological/stratigrahpic data has been created that helps to re-define our understanding of groundwater resources in Africa as a whole and in Ethiopia in particular:a) For the first time the basement aquifer of Ethiopia has been described hydrogeologically based on genesis of regoliths (deep weathering and striping history); clear regional difference in groundwater potential is shown for the first time; comparative accounty has been given regarding groundwater occurrence in the generally low grade basement rocks of Ethiopia (Arabian Nubian shield) and high grade basement rocks of the rest of Africa.b) For the first time groundwater occurrence in multilayred sedimentary rocks account for spatial variation in degree of karstification; deformation history, and stratigraphy. c) The vast volcanic aquifers of Ethiopia which have previously classified based on their ages are now reclassified based on age, morphology (eg. groundwater in plateau volcanics, groundwater in shield volcanics) and aquifer structure. d) The loose alluvio lacustrine sediments which were known as least extensive in previous works based on areal cover are in fact shown to host the most voluminous groundwater resources in Ethiopia. These aquifers have now been described based on their geomorphology, extent, and genesis. The aim of this book is to use these newly created knowledge to redefine the understanding of groundwater resources in Ethiopia.
Note:
Description based upon print version of record
,
Groundwater in Ethiopia; Preface; Contents; 1 Introduction; 1.1…Definitions of Groundwater and Aquifer; 1.2…History of Groundwater Development in Ethiopia; 1.3…Groundwater Storage: General; Box 1: Estimating permanent groundwater storage in Ethiopia; 1.4…Groundwater Occurrences in Ethiopia: General; 1.5…Hydrostratigraphy: General; References; 2 Groundwater Occurrence in Regions and Basins; 2.1…The Broad (Oligo-Miocene) Volcanic Plateau and Associated Shields; Geology and Stratigraphy; Geomorphology; Hydrogeology and Groundwater Occurrence
,
2.2…The Shield Volcanics (Choke, Guguftu, Simen, Guna and Batu etc.)Geology; Hydrogeology and Groundwater Occurrence; 2.3…The Lake Tana Basin; Geology; Hydrogeology and Groundwater Occurrence; Groundwater Surface Water Interaction and Wetlands; Lake Groundwater Interaction; 2.4…The Upper Tekeze River Basin and Associated Massifs; Geology; Tectonic Structures; Drainage and Hydrography; Geomorphology and Environmental Change; Hydrogeology and Groundwater Occurrence; Groundwater Recharge and Discharge; 2.5…The Yerer Tulu Welel Volcanic Lineament Zone and the Wonchi Volcano; Geology
,
Geochemistry and Origin of Naturally Sparkling (High pCO2) Groundwaters2.6…The Volcanic Aquifers Bounding Addis Ababa; Geology; Tectonics; Groundwater Occurrence and Flow; Isotopic and Geochemical Evidence of Groundwater Occurrence and Flow; Origin of Groundwaters Around Addis Ababa; The Recharge Role of Entoto Ridge; Origin of the Filwuha Thermal Springs; Aquifer Vulnerability Map Versus Tritium Distribution; 2.7…Scoria Cones, Maars and Associated Groundwater Resources; Geology; Groundwater Hydrology; Maar Lakes and Depression in Western Borena Lowlands
,
The Upper Awash: Middle Awash Transect2.11…The Mesozoic Sedimentary Aquifers of Ethiopia; Geology; Stratigraphy of the Sedimentary Sequences; Structural Setup of the Mesozoic Sediments and Groundwater Potential; Groundwaters in the Ogaden Multilayered Sedimentary Aquifers; Groundwater Occurrence in the Multi-Layered Sedimentary Basin of the Genale Dawa Area River Basin; Groundwater Occurrence in the Mekelle Outlier; 2.12…The Karst Aquifers of Ethiopia; Karst; Distribution of Karstifiable Rocks in Ethiopia; Basement Marble Aquifers of Ethiopia; Karst Hydrogeology
,
Principal Karst Features of Ethiopia
,
The Bishoftu Crater Lake in Central EthiopiaThe Maar Lakes at the Foot Hill of the Butajira Mountain; The Maar Lakes of the Central Gojam Plateau; 2.8…The Alluvial Grabens Bordering the Rift; Geology; emspBox 1: Communal features of alluvio-lacustrine sediments in the tectonic valleys; Sec22222222222; 2.9…The Bulal Basalt Aquifer and Associated Aquifers; Geology; Hydrogeology and Groundwater Occurrence; 2.10…Groundwaters in the Main Ethiopian Rift and Flow Along Plateau-Rift Transects; The Western Afar Transect; The Butajira-Asela Transect; The Western Abaya Chamo: Lake Abya Chamo Transect
Additional Edition:
9783642303906
Additional Edition:
Erscheint auch als Druck-Ausgabe Kebede, Seifu Groundwater in Ethiopia Berlin : Springer, 2013 3642303900
Additional Edition:
9783642303906
Language:
English
Subjects:
Earth Sciences
Keywords:
Äthiopien
;
Grundwasser
;
Wasserreserve
;
Hydrogeologie
;
Äthiopien
;
Hydrogeologie
;
Grundwasser
;
Hydrogeochemie
;
Grundwasserleiter
DOI:
10.1007/978-3-642-30391-3
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