Mineral Resources Potential - Geothermal Resources

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.... Chapter two '. . - Geological outline .,. . .......... "..H .... ...*..*...I....H 5 2.1 Geology ....................... . ............................ 5 2.1.1 Precambrian metamorphic rocks and associated intrusions ...............................I............. 5 2.1.2 Late-Palaeozoic and Early- Mesozoic sediments ............................. 6 2.1.3 Cenozoic rocks ................................. .-.. 9 2.1.3.1 Cenozoic sedimentary rocks ....................................... 9 2.1.3.2 Cenozoic vol~c rocks ......... 9 r 2. I .3.3 The Rift and RiR volcanic rocks ................... . 10 2.2 An overview of the main structural features in Ethiopia ........................... 17 2.3 <strong>Mineral</strong> resources .............................................. 22 Chapter three I Metallic minerals ............. -.*,. . . .... "..-... 32 3.1 Gold Deposit ........... ....... .....I. ..++........ ............. 34 3.2 Platinum Deposit ............................................. 71 ( 3.3 Tantalum (Niobium, FEE, Lithium, I Beryliium) deposit ......................................... .78 3,4 Nickel (Cobalt) deposit .................................... 95 3.5 Irondeposit I .................................................... 100
3.6 Chromite ....................................................... 109 3.7 Manganese deposit .......................................... f 11 . 8 ~ a s d metals (Copper. Zinc. Lead, ................... .***... Molybdenum. Wolfram) deposit .+ 113 Radioactive minerals (Uranium. Thorium) posit ......................................................... 120 ntite 122 ......................................................... .,. ... {* *" ..'.'"'.."*'*.. 'H w n ' r T41PJ. i .... .. I .... Industrial minerals . .....m..w.......~mm.*.mm.....*..m....1* f 23 4.1 Soda ash (sodium carbonate) .......................... 125 4.2 Diatomite ........................................................ 127 4.3 Bentonite ....................................................... 129 4.4 Other clays and kaolin .................................... 130 4.5 Common-sdt ................................................ I33 4.6 Magnesite ....................*.... . ............ 135 4.7 Feldspars (Ceramic and sheet glass raw materials) ......... . .............. ....... 137 4.8 Talc ........................... . ................................ 139 4.9 Kyanite .................................,..................... i. ... 140 4.10 Graphite ........................................................... 141 4.11 Silica ................... . .......................... 142 4.12 Quartz ........................................................ 1 4 4 4.13 Mica ................... . .................................... 145 4.14 Agrominerals ................................................... 146 4.15 Phosphate ................... . ............................. N 4.16 Gypsum. anhydrite ........................................ 150 4.17 Potash ............................................................. 152 4.1 8 Dolomite and Limestone ................................. 154 4.19 Sulphurs ...................................................... 158 4 -20 Pumicelscoria .................................................. 160 4.21 Natd zeolite ................................................. 161 4.22 <strong>Mineral</strong> waters ................................................ 163
Page 1 and 2: Mineral Resources Potential of Ethi
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Page 7 and 8: . . ,, i,!'!' ,,,, : I , :: , . , ,
Page 9 and 10: ii Mineral Resources Potential of E
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Page 13 and 14: 2 Mineral kurces Potential of Ethio
Page 15 and 16: 41 Mhal Rmum Potential of Ethiopia
Page 17 and 18: 6 Mined Resources Potential of Ethi
Page 19 and 20: up the marine Mmic sequence within
Page 21 and 22: 10 Mineral Resources Potmtia! of Et
Page 23 and 24: Map of East Africa showing some of
Page 26 and 27: ~aln-ggrwpll ~lrln lll~ ~gpb) "comp
Page 28 and 29: g 8 2 550-500 Ma? Y7 Pan African om
Page 30 and 31: Gmlogical uuliinr: 1 9 Red Sea and
Page 32 and 33: Geological outline 2.1 ' 01' hhiopi
Page 34 and 35: 24 Mineral Resourca Potential of Et
Page 36 and 37: 26 Mineral Resources Potential of E
Page 38: 28 Mineral Resources Potential of M
Page 41 and 42: Geoloaicsll outline 3 1 Sllc Sedime
Page 43 and 44: - Kenya border (e.g. Haramsam, Hasa
Page 45 and 46: I 987). Origin oed~g~&#&-$hg f ~ l
Page 47 and 48: Metallic M W s 37 jewelry, gold is
Page 49 and 50: Metallic Minerals 39 to 40O0c). The
Page 51 and 52: Omgenic mesolhermal gold deposits i
Page 53 and 54: Metallic Mincrals 43 quartz schists
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Ah Mincml RLWUKCS l'utential or Eth
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'-& -. ,.:& Metallic Minds 49. - -
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. 46 '& 52 Mineral Resources Potent
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54 Mineral Resources Potential of E
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k 56 Mineral Rtsoum Potential of Et
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wide. Propylitic dtetatibln,~ which
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60 Mineral Rrsources Potential of E
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I' Other sidlar structures ~ b lof
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64 Mineral Resourax Potential of Et
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, suggesting either- .prefeferftiti
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68 Minerat Rcsouwcs Potential of Et
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I Figure 16 Plawrgoldminiihm adoepp
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Platinum deposits in Ethiopia Mcmll
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Metallic Minwala 75 for mineralized
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Metallic Minerals 77 Pigrrro 18 A)
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80 Mineral Resources Potentid of Et
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J I, i < f 82 Mineral Resources Pot
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Figure 28 Tantslite promsing plant;
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88 Mineral Resourn Potential of Eth
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SEPI* 3 Km 0- Figure 30 Geology of
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...k; *.-, 92 Mineral Rwurces Poten
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94 Mineral Resources PotenIial of E
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98 Mineral Resources Potmtial of Et
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100 Mineral Resources Potential of
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106 Minwal Resources Potmtial of Et
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3.6 Chromite Metallic Minerals 109
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3.7 Manganese deposit Occurrence Me
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Metallic Minalals 1 13 ,. 3.8 Base
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,3 I MetallicMinerals 115 I But mor
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Metallic Minemls 1 17 water colours
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Metallic Minds 119 sediments over t
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1 Metallic M inds 121 into most sil
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Chapter 4 Industrial minerals Indus
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Industrial Minerals 125 dolomite. M
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Induslrid M i d 127 concentration o
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43 Bentonite Industrial Minerals 12
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alteration (hydrothermal and weathe
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silica sand, by the capacity of the
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&ted at ksevd. hundnL million .tons
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I FIm 33 Magtmite block from ~h mag
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4.8 Talc Occurrence Industrial M in
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~ .. - Industrial Minerals .. 14 1
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hx several. fum incldiing ;, glass
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Itldwtrial Minds 143 Specific varie
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I ndusttial Minerals 147 The formul
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InaustrialMbemls 149 southwestern E
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Applications Industrial Minerals 15
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,+ Industrial MimlS : -153 977 also
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I I I ApplCcp1tio1~~ Indudrial Mine
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I .. ' - , . . -. .-..- - , , , ,,.
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1 I Industrial Mjnorah '1 59 (bariu
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Industrial Minerals 161 called p om
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ammonium-nitrogen by ion dchange an
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Industrial Minerals 165 Moyale grap
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1 ' ".:-' 168 :@inaal .Reso~r&:Potm
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w;i;y Gems~ones and Semi-precious S
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6.1 Corundum (ruby and sapphire) Sa
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I 1 b Gemstones and Semi-precious S
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Gemstones and Semi-~wious Stones 19
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Gemstones and hi-&ws Stones 195 Bab
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1 Gemstones and Semi-prmious Stones
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7.1 Fossil fuels Chapter 7 Energy R
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Energy Kesoams 20 1 CreWus Age (abo
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, m Enwgy Resources 203 dull materi
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P . , Ug&e (CbilgiType) hrw mrces 2
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General characteristics of the coal
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I I I t ! a Five principal tmigenou
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Enagy Resou- 2 1 1 commenced with q
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" ' le 1 ' Other cod (lignite) occu
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I - 7.13 Oil and gas Energy Reso- 2
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Top petroleum-produchg countries En
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Enew Resources 2 19 gas resources i
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underneath the Tertiary rift strata
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En- Resowlew ~3 dry rock, geopressd
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Y I Resources Potential of Ethiopia
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228 Mineral P O W of Ethiopia
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230 Mineral Rwurces Potential of mh
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232 Mind Resources Potentid of Ethi
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Summary and concludons The aim of t
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@ G;' 240 Mind Resou- Potential of
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References Abdelselam, M.G., Stm, R
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!J ; northem sector of the MER: rel
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Getaneh, A,, Saxena, G.N. (1 984).
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hkC~ux, E., Milk&, J.P.) (1993). Le
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-= 251 Reinhardt, P., Sisay, D. "Ev
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254 Mineral Resouroes Potential of
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Annex 1. Major mineral deposits of
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I 1 NAME Afa (Dabw Insin) Ahtu Afla
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Gaada GLidmol a i i 2 Gbimira bkn G
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- - NAME IDEhTlF. SUBSTANCE Lake nb
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NAME I Sam (Ni) Ss-w IDENTIF. SUBST
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I NAME Kanticba (Au) Ogaden (htr, O
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280 Minerd Remmxs Potential of Ethi
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286 Miml Resources Potential of Eth
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I exploration ZBO Mind Resources Po
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Mineral Resources Potential - Geothermal Resources

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