Groundwater in Namibia - an Explanation to the ... - BGR

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Groundwater in Namibia an explanation to the Hydrogeological Map Greg Christelis and Wilhelm Struckmeier (editors) and Roland Bäumle, Arnold Bittner, Frank Bockmühl, Pierre Botha, Katharina Dierkes, Piet Heyns, Jürgen Kirchner, Roy McG Miller, Sandra Müller, Sindila Mwiya, Louis du Pisani, Dieter Plöthner, Kevin Roberts, Gabi Schneider, Martin Schneider, Alan Simmonds, Hartmut Strub, Abram van Wyk under the supervision of the Steering Committee of the Hydrogeological Map of Namibia Project (Piet Heyns, Marina Coetzee, Karl-Heinz Hoffmann, John Mendelsohn, Gabi Schneider, Wynand Seimons) reviewed by Shirley Bethune This publication complements the Hydrogeological Map of Namibia at scale 1:1000 000 prepared as a Namibian – German technical cooperation project of the Department of Water Affairs, Ministry of Agriculture, Water and Rural Development; the Geological Survey of Namibia, Ministry of Mines and Energy; the Namibia Water Corporation and the Federal Institute for Geoscience and Natural Resources on behalf of the German Ministry of Economic Cooperation and Development. Claudia du Plessis First edition December 2001 unrevised second edition January 2011
Page 1: Groundwater in Namibia an explanati
Page 5 and 6: Honorable Minister Helmut K Angula
Page 7 and 8: Contents Foreword . . . . . . . . .
Page 9 and 10: up of hard rocks, more or less frac
Page 11 and 12: Water in Namibia and rationale for
Page 13 and 14: activities such as mining, industry
Page 15 and 16: Drilling is required to know more a
Page 17 and 18: Wynand du Plessis 15
Page 19 and 20: Source: HYMNAM Project © GSN, DWA
Page 21 and 22: Unit 8, “Non-porous sandstone, co
Page 23 and 24: jointed shales and sandstones produ
Page 25 and 26: characterised by a densely wooded b
Page 27 and 28: Soils of Namibia Soils Extensive ph
Page 29 and 30: Distribution of Namibia’s populat
Page 31 and 32: nation. Namibia is linked to Europe
Page 33 and 34: Wynand du Plessis 31
Page 35 and 36: The principal aquifer formations of
Page 37 and 38: Importance and vulnera - bility of
Page 39 and 40: ever, such boreholes can only tap p
Page 41 and 42: Another clever option to manage wat
Page 43 and 44: Tsumeb open dumping sites: burning
Page 45 and 46: Landsat Thematic Mapper Image 43
Page 47 and 48: Caprivi Strip The hydrogeological r
Page 49 and 50: Village in the Eastern Caprivi The
Page 51 and 52: away from the basin margins is, how
Page 53 and 54:
A group of old boreholes installed
Page 55 and 56:
and feeds the aquifer system of the
Page 57 and 58:
and eastern parts of the Etosha Pan
Page 59 and 60:
Except for brief periods of fresh -
Page 61 and 62:
Water supply of the Etosha National
Page 63 and 64:
the Otavi Group have been stratigra
Page 65 and 66:
karstification period occurred in e
Page 67 and 68:
Fluxes of the GKA model (QEXF + QFI
Page 69 and 70:
The granites and gneisses of the Ba
Page 71 and 72:
Tsumeb Mine got flooded, and due to
Page 73 and 74:
on the ecology of the river downstr
Page 75 and 76:
graphical location of the contact,
Page 77 and 78:
numerous springs issue from these r
Page 79 and 80:
production boreholes were drilled o
Page 81 and 82:
to 21000 m3 /day in 2000. Windhoek
Page 83 and 84:
morphites, which produced granitic
Page 85 and 86:
Omaruru River: Omaruru is one of th
Page 87 and 88:
Source: S Müller Central Namib wat
Page 89 and 90:
progresses from the surface downwar
Page 91 and 92:
Previous and recent investi - gatio
Page 93 and 94:
Factors such as climatic variations
Page 95 and 96:
ments by the easterly trending Osis
Page 97 and 98:
Aroab water supply scheme (9) The v
Page 99 and 100:
silcrete-capped hills. During the T
Page 101 and 102:
Emergency grazing in the Sperrgebie
Page 103 and 104:
The area has long been inhabited, a
Page 105 and 106:
Karasburg water supply and Dreihuk
Page 107 and 108:
Wynand du Plessis 105
Page 109 and 110:
Data sets representing the topograp
Page 111 and 112:
of boreholes in various parts of th
Page 113 and 114:
water exploration project (e.g. sit
Page 115 and 116:
Geological Map of Namibia. 1980. Ge
Page 117 and 118:
the Otavi Mountain Land. In: Sililo
Page 119 and 120:
No Scheme name Lat Long Geology Pro
Page 121 and 122:
Latitude Longitude WW no Depth [ m]
Page 123 and 124:
Scheme Name Latitude Longitude Cons
Page 125 and 126:
Parameter and Expression of the res
Page 127 and 128:
Contaminant - Any solute or cause o
Page 129 and 130:
NamWater - Namibia Water Corporatio
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