Geological Map of Arba Minch - Agre Marryam Area Index Map

Home , Arba Minch, Bonke, Dita (woreda), Kemba (woreda), Zala (woreda)

A A A GEOLOGICAL MAP OF ARBA MINCH - AGRE MARRYAM AREA INDEX MAP

2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 4 4 4 Towns 40 50 60 70 80 90 00 10 20 30 40 50 60 70 80 90 00 10 20 37°0'0"E 38°0'0"E ARJO AKAKI BESEKA NAZRET (! !. .!

Laha !. N !. Region Capital

Zefne A

a s e

i .! Wajifo G Zone Capital

(! Pm .! a r a D Woreda Capital

Myzelo Pm ba HOSAINA-ASELA

(! o !(

b W

a W

d Developed Area Chileshe i

(! Morka G G 0 (! G 0 0 62 7 AA 7 JIMMA HOSAINA ASELA Al 0 0 Roads 10 127 10 10 10 0 A 0 0.5 24.1 A 37.5A !. 4 rh 35.9 Asphalt Mela rh Belta Neha Pm Dila 40.5 (! (! (! Pgs 0 0 Gravel Pm A 0 SODO - AWASA Rivers rh tb Pgs G Chichu Major Rivers (! DIME DILA DODOLA/GOBA 53 (! Ezo Q 0 A 0 Lakes (! M.Abaya-1 Pm 0

^_ G !. a

W Guanguwa l Swamp

Pgs a Pgl S 7 Pgl Wacha ba 126 7 00 00 !. Birbir 00 0 A 00 Lake Mariyam 0 28.4 (! 45 A ARBA MINCH - AGRE MARRYAM Pgs 0 A 12.4 Laska Pgs 0 A 0 0 !. Zada Pgs 0 Boundaries Laska !. 0 (! Sawla Donki !. Has (! 0 A 5 BAKO AHEREMARIAM NEGELE (! Koti 0 Birbir Pgs (!52.5 Basin Boundary Bulki Adis 55.5 (! Yela Wulo !. 0 0 Pgs (! Kofe A 0 A 0 Kode (! 0 0 Sezega (! Hamus 31.5 (! 0 National Boundary Gelta 0 A 0 ! Gebeya 52.5 ( (! 44.8 36.8 88.5

a A 8.4 0 A 0 37.5 0 0 A KONSO - YABELO

m A 0 30 Meho o 0 0 A 0 0

(! 0 0 Sokicha K 56 1285m 45.2 A A (! 0 Spring Discharge [l/s] Pgs Zala Chencha 1.6A 12.1 0 !. 0 0 Resa Ngm Debech Bekero (! ISTIFANOS HAYK YABELO WACHILE Pgl (! Dita 9 5.4 (! Holjo Pre Pgl A (! 0.01 - 0.75 690 7.4 690 Shefete 90 90 Halemo Pgl L. Abaya Lekicha ! (! ( 0.75 - 2.50 (! Ngm 50 K e n y a 0 A 0 K e n y a 5.9 Pgs 0 A ' 2.50 - 6.00 1.2 Repe J Pgs Pgs (!

Pgs a Dumerso 6.00 - 16.00

s (!

r Bukisa Ngm

! o ( Pgs Q 0 G Yir-Ch-2 Tulise 20.6 5 16.00 - Pre (! A Pgl ^_ Gelela 15.6(! Dido Ngm ! Pgs ( Gulta 44.5 Shara Yarte Pgl (! Adame (!0 A 3.7 (! 0 Geological Structure Pgl 75.7 Pgl 0 0 A 48.5 0 A 36.8 Pgs 0 Major fault, downthrown shown 0 0 0 22.5 Yirga Pgl 0 44.2 14.3 11.8 0 !. 6 A 12.1 (! A A Wachile 6 A (! Major fault 80 Otolo 0 0 Foge 60 6.4 0 80 Pgl (! 0 82.8 Chefe 80 80 0 5.4 Gerse A 0 A 0 0 69.5 Melka Lole (! 0 0 A (! Normal fault, downthrow shown Gayle Lante 0 0 0 38 0 G (! Haru 0 32.4 Pgl 0 A 0A 5(!.9 0 A 2 A i 68 20.2 8.2 n 0 A 0 7.2 Normal fault Q a Pgl 0 A 5.5 12.5 0 12.5 3(!.2 A 2.2 Widese (! Inferred fault, downthrown shown Konga 11.3 Pgl 0 0 Pgl 0 Kedida 0 A0 A 3.7 0 Inferred fault (! 0 K 0 50.4 22.3 0

u A A 23 18.8 a 0 46.5 A

l Mora n 80 f (! Major fault, downthrown shown, by satellite images o 0 11.8 0 0 0

Pgl a A A

l 0 38.6

R 0 A 0 A 28.1 22.1 a

e A

Layl g

i Ononcho 0 v 7.3 n

G (! Major fault, by satellite images

Genta e o

! r 0 76.5 Belta ( (! Fisiha K Wib (! Pgl 37 A 2.2 0 A 0 85.5 Genet Hamer BH7 0 Normal fault, downthrow shown, by satellite images (! 61 !@ 0 Kemba Bonke 0 A 0 0 A60 Pgs 6 0 50.4 (! Biloya 6 41 J 25.4 24.8 A (! 70 !. Beza A Adis 0 18 15.6 70 Beto !. 70 (! 7.7 70 0 A 0 A 0 27.7 Pgl Ketema 0 19.9 Normal fault, by satellite images A 38.6 Ngm 0 Pgs A Giwe 0 103.6 Chorso (! Inferred fault, downthrown shown, by satellite images 56.8 77 0 A 68.7 Golja (! 0 A 0 0 A 0 0 0 84 Inferred fault, by satellite images 0 49.5 31.5 0 13.7 2 Abel Ngm Arba 0 68.7 A 0 A 0 0 A 0 (! A 22.4 Geology boundary Pgl 0 0 0 Toylo Minch 37.5 N 40 50 60 70 80 90 00 10 20 30 !. 40 50 60 70 80 90 00 31.5 0 0 1S0isota 20 " A (! 52.5 Inferred geology boundary Pgl 0 0 N 0 A

' 0

Q " Kencho (! 0 A 0 0 (! 0 Pgl 0

Chelelektu '

° !. Sigiga 0

a 0 6 s

u Pgs Caldera edge

k 6

Ngu e ba Z Ngm K #*

u ba Pgs Volcano / Volcanic Cone Pre l

94 Gerda f Pgs Ngs

(! o Q

6 0 50 S Pgs 6 R

Pgl A e Ngm g

60 0 i Q Pgs 60

60 v 60 Pgs

e Borehole (Well)

n Pgs

Zaba Pgl r No.2 R Total depth [mbgl]

(! Pgl Pre i Pre v

e Ch'ep'o Ngm r Q Tore Specific capacity [l/min/m] A Static water level [m] Pgs Ngm Pgs !. Pgs Gerese Pre Ngm

Pre !. Ngu Q

Zomba S Draw down [m]

(! Pgl e

r Ngm

e Pgs Pgs

l Pgl e Ngm Pgl Q !@ JICA Well Gedeo (! Ngm Ngs Ngs Pgs Q Ngm Pre ile Pgs Shele S G Pre (! Pgl TEM el ba Ngs an 6 a 6 Survey Point of Transient-phenomenon 50 Pgl 50 Sego 50 Pgs 50 ^_ Pgl Pre Pgl Ngm Q Pgs (or Time-domain) Electromagnetic Exploration Method Dimele Pre Pre (! Pgs Ngu Pre L. Chamo Ngu

Q Pgl Pre Luda Ngm a Ngm Ngu Q (! Derba

1235m Pre (! n Pgs

Bako a Pgs l Pgs

(! Q !. e Ngu Kele Pgs Ngm G Ngm Geology Pgl Pgs Pgs Jeba Pre Pgl Pgs Ngu Sire Ngu Zeyse Pgs Holocene Pgl Boshkoro (! Pgl Pgl (! Pgs Ngs Ngu Pgl Ngm Ngu Pre Al 6 Pgs 6 Alluvium; Fine sand - mud Pgs !. 40 40 40 Ngm Q 40 Pre Ngu Ngu 72 Q 13.5 21 Unclassified Fluvial Deposits; Sandy gravel-mud Pgl A Pre Pgl Pre Pgl Ngu 26.7 Pre Pgl Pre Ngu lac2 Q Ngu Bulbla Lacstrine Deposits; Lake deposits such as gravel, sand and mud Pgl Pgl Pre Pgl Kaysa ! Pgl Pgl Pm ( Pre Corbetti Pumice Flow & Fall Deposits; Pumice falls and pumice flow deposits Pgl

Benata e Arguba ! ! ( y ( Vol Pre t Pgs Pre o Pre Pgl Ngu Pre Corbetti Rhyolitic Volcanics; Rhyolite lava flows and Obsidian lava flows Pre R Pre

v BH8 Pgl !@ Pgl e K rb r Pgl 6 Pgl 117 6 Butajira Recent Basalt; Basalt lavas and reddish brown basaltic scoria 30 30 53.8 A 42.4 30 30 Pre 20 Ngu lac1 Meki Lacustrine Deposits; Lake deposits such as poorly-sorted gravel, sand, pumice, tuff, and volcanic sand Q Pre Ngm 55 ba ba Pre 3.9 A 3.5 Ngu ba 2.9 ba Kako Ngu ba Pleistocene (! Gidole ba 40 50 60 70 80 90 00 10 !. 20 30 40 50 ba 60 70 80 90 00 10 Ag-Ma-2 K' 20 Y Pgs ba ^_ Pre Pgs Pgl Ngu Q Langano Poorly Welded Pumiceous Pyroclastics; Yellowish white rhyolitic pumice tuff Pre Pgs Agere Ngu ba Q !. ob Pre Pgl Mariyam Kulumusa Highly Welded Tuff; Rhyolitic to andestic welded tuff Ngs Ngm Pre Pre Pgs Pgs Ngm W 6 Pre Pgs Ngm Pre 6 Ketar River Acidic Volcanic Sedimentary Rocks; Rhyolitic tuffs and pumice tuffs 20 Pgs 20 20 Q Pgl 20 Pgs ba Q Sek'ama Ngm Pre Pgl Ngu G Pgs Pgs Gonde Strongly Green Welded Tuff; Rhyolitic to andestic welded tuff Pre Ngm Pgl Ngm Pgs Pgs Pgs tb Pgs Ngm Adami Tulu Basaltic Pyroclastics; Basaltic tuff breccias and lapilli tuffs Mashile (! Pre Gato Pre (! ba Pre Q Ogolche Pleistocene Basalt; Massive basalt lavas Ngm Pre Pgs Ngm Pre Pre Pgl lake ba Q Lekansho Lacustrine Deposits; Lake deposits such as sand stone and alternate layer Pgl ba Pgl Q Key Afer Gato Ngu 6 Q !. Fuchicha 6 (! Ngm 10 Ngu Pgs 10 10 10 Pgl Plio-Pleistocene

S rh

e Pgl g Gademotta Rhyolite; Rhyolite lava flows and rhyolitic tuffs

Pgl Pgl Ngs e

Pre n Soyema

R !.

i Pgs Ngm Q N2b

ba v

Ngm e Ngu Ngm N2b Basalt; Basalt lavas and basaltic pyroclastics r Q Q Ngs ba Q Ngb NQs Pre Ngs Q NQs Rhyolite; Rhyolitic tuffs Gelabo ! Pre ( ba

Pgs K Pre Pre Pgs Pre Pliocene

Pre e Gembo

Gewada b Ngm (!

Pre e 6 Q Pre 6 Alduba d rht

(! 0 00 I a 00

Pre 00 0 42.4 y 00 Pgl Q N1_2n Rhyolitic Volcanics; Plagiocrase rhyolite tuff and rhyolite lava flows containing obsidian

Delbena A a Ngm n Pre (! 20 Ngm

Ngu d Pre

a Q N1_2n Pre ba Pgl N1_2n Rhyolitic Tuff; Plagiocrase rhyolitic tuff, pumice tuff and crystal tuff Ngu 46 0 A 33 Pre Ngm 0 N1n Pgl N1n Basalt; Anchar Basalt Pgs Pre Pgl Pgl ba Pgs N1ar Ngm Pgl N1ar Rhyolite; Rhyolite 83 Ngs Ngm 0 A 30.7 Pgs (!

4.4 Pgs

B Ngm e Miocene

70 Ngs

70 l ba

e Pgl

0 27 0 36 (! 5 A A S Doketu 93 Konso 5 Ngs Pre (!

90 0 0 a !. 90 90 y 0 0 Bekawile 90 Pgl Sharenga Rhyolite; Rhyolite piles and necks

A (! Ngs Ngs a Bekawile Ngm Ngu 0 Pgl

d (! Ngs o Pre Ngs Ngu Kolme Ngs Ngs (! Ngs Ngm Upper Basalt; Porous basalt lavas Pgl (! 52 Pgl Pre 0 46 Pgl A (! Ngs Q 0 Weyto Pgl Ngb Pgl Fasha Pgl Beyana Tuff; Lapilli tuff with minor laminated tuff (! (! Mecheke (! Pre

Pre Pgl Pgl

Didiga Ngm

e Middle Basalt; Porphyritic basalt lavas

s Pre Pgl

a (! Q Pgl Pre

Ngm

B u r k Pgl(! Pre a Pre Q Eocene-Oligocene N .

m Q Ngm 0 Q 0 5 Pgs 0 Pgl 80

0 80 80 Pgl Pgl Shole Welded Tuff; Densely-welded rhyolitic welded tuff 8 5 Pre Pgl

Pgl Pgl Pre

Pre Lower Basalt; Porphyritic basalt lavas

N Q Q

r e v i R n e g e S '

W Pgl

Pre Pgl e Pgl Pre y

74 o Ngm Pre MESOZOIC

R Pre

0 27 i Pgl

A v Ngu e 0 r Ngm Pgl Pgl Mes Pre Ngm Pre Pgl Adigrat Sandstone, Antaro Limestone; Sandstone, Shale and Limestone Ngu Pgl 37°0'0"E 38°0'0"E 240000m.E 250 260 A 270 280 290 300 310 320 330 340 350 360 370 380 390 400 410 420 PRECAMBRIAN Pre 0 10 20 40 Biotite Gneiss, Pegmatite; Biotite Gneiss, Granite, Biotite Metagranite VERTICAL SCALE = 10 x HORIZONTALSCALE SCALE 1:250,000 km TRANSVERSE MERCATER PROJECTION 2,400 2,400 N ^_ N' 2,300 A C D E BH4 2,300 I K L 2,200 B BH9N BH3 2,200 J Konga R. Pgs Pgs Ag-Ma-2 Burka R. Burka R. T10-2 2,100 BH10 Arsi Negele Shashemene Awasa Leku 2,100 Dila Guanguwa Yir-Ch-2 Chelelektu Tore Pgs Agere Mariyam Yirga Chefe 2,000 2,000 Ngm Langano Lake Tiliku Dedaba R. rh W Pgl 1,900 Laftu R. Melka Oda R. Denbi R. Tikur Wiha R. Gidabo R. Kola R. 1,900 Gigesa R. Dara R. Sala R. Pgs Pgs Pre 1,800 Pm G ob ob ob lac2 Al lac2 lac2 G 1,800 Q Q ba Vol Y ba Q lac1 N2b Al W Al ob W G Q 1,700 Y W W 1,700 Pgl W W Y W G tb rh W G ba Pgl 1,600 Lake W G G 1,600 G tb tb sample lost tb N1_2n G tb tb 1,500 Pm N1_2n ba ba rh 1ba,500 rht N2b rh ba Pre Pgl 1,400 rht rh 1,400 1,300 rht N1-2n 1,300 1,200 1,200 1,100 N1_2n 1,100 Q 1,000 1,000 Ngm 900 N2b 900 Pre Q 800 800 Ngm 700 700 600 600 500 N1_2n 500 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000 110,000 120,000 130,000 140,000 150,000 16 0,000 17 0,000 180,000 190,000 200,000 210,000 220,000 230,000 240,000 250,000 26 0,000 27 0,000 280,000 290,000 300,000 310,000 320,000 330,000 340,000 350,000 36 0,000 37 0,000 380,000 390,000 2,900 J 2,800 M I J' K K' ・ The topographical map is based on Ethiopian Mapping Agency (EMA), 1979, 1994, 1995 and 1997 BH7 N 2,700 ・ Geological Map of the Ethiopian Rift,Ethiopian Institute of Geological Survey (EIGS), Ministry of Mines and Energy,1981 2,700 ・ Hydrogeology of the Lakes Region, Ethiopia (Lakes Ziway, Langano, Abiyata, Shalla and Awassa),Ethiopian Institute of Geological Survey (EIGS), Ministry of Mines and Energy,1982 Yir-Ch-2 M N 2,600 Ngm 2,600 ・ Geological Map of Omo River Project area,Ethiopian Institute of Geological Survey (EIGS), Ministry of Mines and Energy,1983 BH8 Ag-Ma-2 ・ Geothermal Exploration Project Ethiopian Lakes District Rift, exploitation of Langano-Aluto geothermal resources, Feasibility report,Ministry of Mines and Energy, elc electroconsult, Italy,1986 2,500 2,500 ・ Geology of Agere Maryam Area,Geological Survey of Ethiopia (GSE),1994 2,400 Yirga Chefe 2,400 ・ Hydrogeological, geophysical and engineering Geological Investigation of Yabelo Sheet,Geological Survey of Ethiopia (GSE),2000 Ngm Pgs ・ Hydrogeological and Engineering Geological Investigation of Chew Bahir Sheet,Geological Survey of Ethiopia (GSE),2000 2,300 2,300 Pgl ・ Geological Map of the Ziway - Shala Lakes Basin,Dainelli et al., Department of Earth Sciences, University of Florence, Italy,2001 2,200 Pgs 2,200 ・ Geothermal resource Exploration in Abaya and Tulu Moye Gedemisa geothermal Prospects, Main Ethiopian Rift,Geological Survey of Ethiopia (GSE),2002 Ngm ・ Hydrogeology and Engineering Geology of Awassa Lake Cachement,Geological Survey of Ethiopia (GSE),2003 2,100 2,100 ・ Geology Yabelo MapSheet,Geological Survey of Ethiopia (GSE),2007 Pgl ・ Butajira-Ziway Area Development Study Project, Hydrogical Map,Ministry of Water Resources, Ethiopian Water Technology Center (EWTEC),2008 2,000 2,000 ・ Geological map of Rift Valley Lakes Basin,Ministry of Water Resources, Halcrow and GIRDC,2008 1,900 Kulfo R. Gina R. Gelana R. 1,900 Q 1,800 Pgs 1,800 Arba Minch 1,700 Pgl 1,700 Pgl Geological Map March 2012 1,600 1,600 Ngu 1,500 Pgl Pgs Q Pgs 1,500 Q 1,400 Abaya Lake 1,400 Q Q Segen R. THE STUDY ON GROUNDWATER RESOURCES ASSESSMENT ba Q Pgl 1,300 1,300 Pgl Q Pgl Q IN THE RIFT VALLEY LAKES BASIN 1,200 ba 1,200 Ngs Q 1,100 Pgl 1,100 Pgl Ngs Pgl Q 1,000 1,000 Pre JAPAN INTERNATIONAL COOPERATION AGENCY (JICA) 900 Pre 900 800 800