Geological Map of Hosaina - Asela Area !

GEOLOGICAL MAP OF HOSAINA - ASELA AREA !. INDEX MAP

3 3 3 3 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 Towns 60 70 80 90 00 10 20 30 40 (! 50 60 70 80 90 00 10 20 30 40 50 38°0'0"E 39°0'0"E .! Region Capital ARJO AKAKI BESEKA NAZRET (! Leta 940 940 .! Gerbo Tore 40 40 Zone Capital (! (! .! Woreda Capital HOSAINA-ASELA Ejersa !( (! Developed Area Dam Arbu Haro (! (! Bofa Chulule (! JIMMA HOSAINA ASELA (! Roads Korke (! Asphalt Geto Tiya (! (! Koka (! Gravel Rivers SODO - AWASA 930 930 Gora 30 30 Major Rivers (! suten Abegaz (! Awash (! Sodere DIME DILA DODOLA/GOBA Melkasa (! (! Kombolti Lakes (! Swamp

N1n Ombole (! Lake N1_2n ARBA MINCH - AGRE MARRYAM Boundaries Basin Boundary BAKO AHEREMARIAM NEGELE N1ar

9 Kesht 9 Acheber (! 20 20 (! Bu-i 150 20 20 National Boundary !. 3.8 A 150 0 Haro Jima KONSO - YABELO (! Robi 102 (! Spring Discharge [l/s] 153.6 0 A 5(!7.4 0 A 83.8 N1n 0.1 Alem Welkite 0 Tene 0.01 - 0.75 ISTIFANOS HAYK YABELO WACHILE !. Midrekebd (! 0.75 - 2.50 Ngm 2.50 - 6.00 K e n y a Kella (! Elersa Pre 295 Lele 6.00 - 16.00 5.5 A 151.9 (! Pgl 102.3 Bika (! 9 rb Barta 9 16.00 - 10 ob (! 10 10 rb 10 Pgl Y BH2 Y !@147 Geological Structure A A 90.6 0 Major fault, downthrown shown N1_2n Y 200 #* 0.6 A 110.1 Aqena ob 0.8 Major fault !. #*rb #* #* Normal fault, downthrow shown rb lac1 #* Dugda Normal fault 26 (! ob

0 A 15 #* Pm N Inferred fault, downthrown shown 37 #* #* W Meki rb 0 A 13 #* #* !. 9 Yambeli 0 9 (! #* Inferred fault 00 Agena 80 #* 84 85 r Arb 00 (! 00 78 e 00 25 40.9 A 87.9 46 7.9 25.7 v Gebeya 29 52 A A Hamus i ob Iteya (! Major fault, downthrown shown, by satellite images 0 9 31 15A.4 65 2.8 #* 55 R

Indibir A #* Gebeya i !.

0 0 A 9 194.9 A156 (! k I r n i z a !. A f e 0 !. 3.8 54.7 Goba W Major fault, by satellite images Endibir Bozhabar A 41.5 M rh Y (! 87 11.3 ob ob !. 0 31 17 Fude #* 25.1 14.9 A (! N1_2n Y A 0 0 15 Normal fault, downthrow shown, by satellite images 21.7 A G #* #* #* 0 Y W 0 #* 40 rh 0 Adis #* ba Y Normal fault, by satellite images 60 70 80 90 00 10 0 A 15 20 30 0 A 9 2840 50 60 70 80 90 00 10 20 30 40 50 0 13 rb Natile Ligaba A0 Ketema #* 11 0 (! (!

(! 0 A 10 0 K W

#* #* 0 A 4 0 Y Inferred fault, downthrown shown, by satellite images

0 0 0 a

31 t Shamene #* #* 244 a

(! 0 9 A 9 r A #* 0 A 7 1 159 Rama W Inferred fault, by satellite images 0 0 A W 0 0 19 11 Gebriel Y Inseso ! 60 ob 0 A 15 #* 43.6 43.4 (! ( Yandene 0 A #* A0 0 A 5 37.8 0 A 189.1 0 0 #* 25 ob W rb ob Geology boundary NQs Buratu0 11 0 #* 41.1 40 0 0 A 18.2 200 8.8 8 (! A0 9 #* A BH10N 8

A 10 0 0 0 A 2 31 40.5 0 40 0 !@ 24.8

90 0 A 4 0 A #* 4.2 A 90

K a t 0 0 a 0 0 396.20 0 0 A 34 0 A 10 0 14.4 0 A 18.1 90 r lac1 9.7 rh G Wolonkomi(Boruijawe) Inferred geology boundary Adis A #* A rh (! 0 0 A 7 17 AA 33.1 #* 0 0 0 G (! 0 0 #* 29 44 (! ob

Yewere Gebeya 15.9 A 15.7 0 20.6 34 Ogoloho

Gunchire ! 0 5 31 0 12.6

( 0 5 a

A 0 18.2 ja A s Caldera edge

1.3 m 0 A u 0 A 4 o 35 ob l u

!. A 0 0 0 #* #*rb A10 W 0 K Gonoe (!G 0 e

Jembero 0 24.3 #* 4A0 0 17.8 (! 0 43 d

0 0 A 10 14.4 0 A 18.1 A 0 56 A #* A 0 4.6 Kulumsa n

21.4 #* A 0 Abosa (! Bole 0 4.5A 5 00 0 0 A0 12.60 (! #* 0 A 26.3 (! o Volcano / Volcanic Cone

(! A Kibet 0 0 11 0 0 0 #* #* 34 0 A G G 0 0 AA10 0 17.8 28 0 A 0 A 26.3 A rb#* 2.5 0 L. Ziway rh N Arekit 0 0 0 0 0 A 2.6A Koshe 0 #* N " !. W 0 0 2.5 2.3 (! Deneba 2.5 0 A (! " 0 0 2A.6 0 Borehole (Well) ' A 35.4 ob Y A 1.5 G 0 ' 0 0 0 4 3.9 20.8 #* #* 0

° A

C ° Total depth [mbgl] 8 0 0 0.7 Abugade #* 136 8 (! 23.1 A 21 2.9 A 2.8 1636m 0 0.8 0 A 0 A 11.4 #* rb (! Specific capacity [l/min/m] Static water level [m] 19 44.818.8#*42 0 ba Arata ba Wayra A (! (! A rb 102 G 1.5 8.1

rh 0 A 68.3 G

179 1 Herera Draw down [m]

0 (! a

0 s

8 30964 131.1 ba e 8

A k

80 35.A7 35.7 l 80

80 A 1.7 80 b#*a ob o

W 0.1 rh ba ASELA B !@

Meraheriya # # # 0 #

#* # JICA Well

(! # ba ba

# # !.

# #

# # #

17.6 #

0 #

A #

Tarbe rh # # ba

# ba #* Ararit #

#* #* #

(! #

rh W 24.1 24 tb #* #

# Mazoriya A # ba

(! 110 rh 60 ba # #

0.4 rh ba #

#* #* # #

72.6 62.9 0 33 ba #

NQs A # A TEM

G # # #* #

4.1 rb 2 !. ba ba ba

#* # N1_2n

Udasa Ziway # # #* #

Alkeso (! rh #* # ba Survey Point of Transient-phenomenon #* # Kutere (! ba #

(! #* #

# # ^_

# ba G # # # ba #* (or Time-domain) Electromagnetic Exploration Method

ba # # Mike # # #

(! #* ba G # # #* # #* # ba # # #

# #* #* #* ba #* G # ba G G #* # #* #* Kebu rh #* rh #* (! Vol Kose rh#* (! 8 (! rh 8 70 #* 66.4 #* #* #* G 70 70 #* 251 0 30.5 ba lake 70 #* A tb Geology rh 0 A 0!.rb Adami 5.4 #* Werabe rh r#*h 0 ba Oinkula #* #* Tulu !. G (! Avisako !. rb Tora tb #* #* #* Golja A ! #* Vol Vol ba#* (! ( #* #* rh #* Vol Holocene (! G ' Mugo ba (! rb

Pm Vol Pm #* lac1 Chete a Al Gomoro W Jila m

! #*

( a Alluvium; Fine sand - mud

#* ob rh #* #* d rb a rh #*

rh #* W H Q

rb #* Unclassified Fluvial Deposits; Sandy gravel-mud

Yode #* #* rh Vol G A

Geja Sebola Yode #* rb #* G h

N2b e

(! (! G

#* b lac2 Sabola e

(! #* Dalocha Tora-1 k Bulbla Lacstrine Deposits; Lake deposits such as gravel, sand and mud

Bilalu !. rh a

(! rh #* ^_ B u 8 K rh 8

lac2 l Pm o

60 #* b 60 n

G 60 u 60 Corbetti Pumice Flow & Fall Deposits; Pumice falls and pumice flow deposits k 243

rb l a e #* 0 152.8 y A Pm Digelu

e ba #* #* 37.2 Pm (! Vol #* Sagure Corbetti Rhyolitic Volcanics; Rhyolite lava flows and Obsidian lava flows Lera #* Hula !. (! ba Senyo Wilbareg lac1 (! rb (! W Duna #* Butajira Recent Basalt; Basalt lavas and reddish brown basaltic scoria !. #*#* #* Hafi lac1 Bulbula (! #* #* ob (! ba Meki Lacustrine Deposits; Lake deposits such as poorly-sorted gravel, sand, pumice, tuff, and volcanic sand Kombo Al Damala (! (! #*

#* ba Pleistocene

Homecho G D

(! #* e

8 Morsito r Tijo 8

N2b g

H Kenchere (!

o o

!. r ba (!

50 a 50 Y

50 e 50 #* l Mito o Langano Poorly Welded Pumiceous Pyroclastics; Yellowish white rhyolitic pumice tuff (! ba W #* #* Achamo ob (! #*

B #* Kulumusa Highly Welded Tuff; Rhyolitic to andestic welded tuff

i r

l a a

G t a

#* a

t ba k K Fanko e (! #* e W 72.5 #* k Ketar River Acidic Volcanic Sedimentary Rocks; Rhyolitic tuffs and pumice tuffs #* e 60 70 80 90 0 A 0 00 10 2#*0 30 40 50 60 70 80 90 B 00 10 20 30 40 50 0 #* G N1_2n Gonde Strongly Green Welded Tuff; Rhyolitic to andestic welded tuff Ego a Gabo (! n Lemu tb (! de Sirba 1580m e (! Adami Tulu Basaltic Pyroclastics; Basaltic tuff breccias and lapilli tuffs ol B 8 Boshena 1585m 8 40 (! Dosha 40 (! 40 L. Abijata 40 ba Belesa ob Ogolche Pleistocene Basalt; Massive basalt lavas (! D ob N2b G ij L. Langano o Pm G lake u Alem !.

d ob Lekansho Lacustrine Deposits; Lake deposits such as sand stone and alternate layer (! ob

e #* P#*m Munesa

r #* a

Vol Kers

Hossaina B lac2 s

Langeno k

(! e Plio-Pleistocene

!. a Al

# #

t e

e # B

#* #

# # # n #

# rh # lac2

a # rh

# Guna

# # #

Pm #

# Kersa Gademotta Rhyolite; Rhyolite lava flows and rhyolitic tuffs

# (! #

# Bekoji

# Godo

# Guna (!

# !.

rh # Lemu

Lisana # # (! N2b

! # ( #

# N2b Basalt; Basalt lavas and basaltic pyroclastics a

e #

W k

# 200 #

8 Pm e 8 # L

# BH9N

30 30 # 0 A!@ 0 30 30 # a

0 0 m NQs # i

D NQs Rhyolite; Rhyolitic tuffs 0 151 o

A #

28 rh b

ob a o h

H i

l e

l Pliocene

e l a

Bena-ara a s

(! D

G 167 r e

91.2 A 87.9 rh 0 1550m j rht G E 16 0 A 152.8 N1_2n Rhyolitic Volcanics; Plagiocrase rhyolite tuff and rhyolite lava flows containing obsidian 220 37.2 L. Shalla 0 A 121.5 ob N1_2n 202 5.9 rh # N1_2n Rhyolitic Tuff; Plagiocrase rhyolitic tuff, pumice tuff and crystal tuff 0 ob ob ob A0 74 # (! Amesho # # 9.3 0 0 0 W Degaga A60 A # # ! Wato 0 0 rh ( N1n (! 0 0 Al # # 234 Goljota A rh rb Al (! 0 # ob 0 160.4 ob N1n Basalt; Anchar Basalt Bejo 286.5 # W ob A 8 (! tb 29.3 8 0 254.7 # 20 280 A 20 tb # 20 20 Kosha 0 tb ba # (! 0 A 188.9 # N1ar # # N1ar Rhyolite; Rhyolite 57.6 # # # Pm Siltna

Funamura # # (!

! #

( rh # # a

Y tb # # Y s

rh # m

rh rh rh # a

tb ba # # # # # # # e

# # # k t

# # i

# # # u Miocene

G l

Gerema tb u 252.1 tb H (! 150 ob Ngs

0 A 179.7 Sharenga Rhyolite; Rhyolite piles and necks

0 A 126.4 ob ob Arsi

282 40.1 o

0.3 e N

rb e ! ob g ( 0 206.2 e

80 Pm A Negele L

260 3.5 !. Ngu o h e 0 A 50 0 A 164 Shela ob l Upper Basalt; Porous basalt lavas 0 42.7 Senbete Pm 92 Derneboya Y (! (!

Angecha 60 Sirbo

37 A (! tb (!

!. u Ngb l

0 15 Halkecha ob i J

A Funto a Beyana Tuff; Lapilli tuff with minor laminated tuff

tb a

e 37 d

Neketa b

8 (! d 8 o

rh a N2b

0 9 a

0 d

10 A G 10 A e

282 10 w 10

e Ngm 0 D

0 205 l

Kulito A rh a Middle Basalt; Porphyritic basalt lavas k

Fedide i a 14.6 w

(! !. 360 318 l

rb i d A 0 T Lepis W

0 0 u (!

A A BH6 O Serara t

(! 0 25.7 !@ rb f

a # # # # a

k Eocene-Oligocene ob b

# !

( l L

rb a

# rh

# 84 i e

rb d

rb s

p e #

Hobesheka e #

(! L 30.2 26.7 D

Awara M

# A

# ! Pgs (

rb u

i #

13.1 360 rh h #

b Shole Welded Tuff; Densely-welded rhyolitic welded tuff i # rh

n (! #

25.6 280.4 n

rb rb ob i A (! e

# rb T Shashe

# Pm Weta ! 13.5 D (

(! #

# Gubaba # # # #

# # rb Pgl # G #

# Kuyera

# Lower Basalt; Porphyritic basalt lavas

# # (!

# # Bura

# # Negele

# # (!

# # # # # W ob Pm

# # ob rb #

N #

N MESOZOIC #

m Pm u

0 #

! G i C Shire

(

0 b !

Drame # ob ( 8

0 ' # Pm A

Durame # Pm D

# eda 00 Mes

# b '

0 !. 00 # 00 a #

# Vol Adigrat Sandstone, Antaro Limestone; Sandstone, Shale and Limestone 0

Vol # T

# Vol Pm il

8 rh iku

# # (!

(! 38°0'0"E # 39°0'0"E # (! 3 000m. 3 3 3 4 4 4 4 4 4 ! 4 4 4 4 5 5 5 5 5 5 # (

60 E 70 80 90 00 10 20 # 30 40 50 60 70 80 90 00 10 20 30 40 50

# PRECAMBRIAN #

A # !@

# A A #

# Pre # A !.

A # Biotite Gneiss, Pegmatite; Biotite Gneiss, Granite, Biotite Metagranite 0 # 10 20 40 # # # #

VERTICAL SCALE = 10 x HORIZONTALSCALE # SCALE 1:250,000 km TRANSVERSE MERCATER PROJECTION #

# #

# # # A # # 3,100 #

3,000 # C A # C' 2,900 # A A NQs # W O M # A N 2,800 2,800 # G Tora-1 # BH9N A M N 2,700 # 2,700 rh # BH2 BH10N Asera A' 2,600 2,600 Pm W 2,500 N1-2n N1-2n 2,500 G 2,400 2,400 N1_2n 2,300 W 2,300 G W Lepsi R. Katar R. Kulumsa R. 2,200 2,200 Y Pm Huluka R. G Katar R. 2,100 G 2,100 ob 2,000 G Abijata Lake Y ob N2b 2,000 W 1,900 W 1,900 rh Y rb G 1,800 Al Al 1,800 ob lac1 ob Y W G lac2 lac1 lac2 lac1 1,700 rh 1,700 Pm G Y W N1_2n 1,600 1,600 ob W ba W G G N1-2n W tb sample lost ba 1,500 G N1_2n 1,500 rh G G 1,400 G N1-2n G 1,400 tb rh 1,300 1,300 rh 1,200 1,200 1,100 1,100

2,400 ・ The topographical map is based on Ethiopian Mapping Agency (EMA), 1979, 1994, 1995 and 1997 N 2,300 A C D E BH4 ・ Geological Map of the Ethiopian Rift,Ethiopian Institute of Geological Survey (EIGS), Ministry of Mines and Energy,1981 I K L NBH'3 ・ 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 J Pgs Pgs Burka R. Burka R. T10-2 2,200 B BH9N ・ Geological Map of Omo River Project area,Ethiopian Institute of Geological Survey (EIGS), Ministry of Mines and Energy,1983 Konga R. Ag-Ma-2 BH10 Arsi Negele Shashemene Awasa Leku ・ Geothermal ExploKraetibona dPoroject Ethiopian Lakes District RiftD, eixlaploitation of Langano-AluGtou gaenogtuhewrma al resources, Feasibility report,Ministry of Mines and Energy, elc electroconsult, Italy,1986 Yir-Ch-2 Chelelektu Tore Pgs Agere Mariyam 2,100 ・ Geology of Agere Maryam Area,Geological Survey of Ethiopia (GSE),1994 ・ Hydrogeological, geophysical and engineering Geological Investigation of Yabelo Sheet,Geological Survey of Ethiopia (GSE),2000 Yirga Chefe 2,000 ・ Hydrogeological and Engineering Geological Investigation of Chew Bahir Sheet,Geological Survey of Ethiopia (GSE),2000 Ngm Langano Lake Tiliku Dedaba R. Laftu R. Melka Oda R. Denbi R. Tikur Wiha R. rh Gidabo R. Kola R. W ・ Geological Map of the ZiwGaiyg - eSshala R La.kes BasDin,aDraain eRlli .et al.S, Daelpaa rRtm.ent of Earth Sciences, University of Florence, Italy,2001 Pgl 1,900 Pgs Pre ob ob ob ・ Geothermal resource Exploration in Abaya and Tulu Moye Gedemisa geothermal Prospects, Main Ethiopian Rift,Geological Survey of Ethiopia (GSE),2002 Pgs 1,800 Pm G lac2 Al lac2 lac2 G ・ Hydrogeology and Engineering Geology of Awassa Lake Cachement,Geological Survey of Ethiopia (GSE),2003 Q Q ba Vol Y ba Q lac1 N2b Al W Al ob W G ・ Geology Yabelo MapSheet,Geological Survey of Ethiopia (GSE),2007 Q 1,700 Y W W ・ Butajira-Ziway Area Development Study Project, Hydrogical Map,Ministry of Water Resources, Ethiopian Water Technology Center (EWTEC),2008 Pgl W W Y W G tb rh W G ・ Geological map of Rift Valley Lakes Basin,Ministry of Water Resources, Halcrow banad GIRDC,2008 Pgl 1,600 Lake W G G G tb tb sample lost tb N1_2n G tb tb 1,500 Pm N1_2n ba ba rh ba rht N2b rh ba Pre Pgl 1,400 rht rh 1,300 rht N1-2n Geological Map March 2012 1,200 N1_2n 1,100 THE STUDY ON GROUNDWATER RESOURCES ASSESSMENT Q 1,000 Ngm 900 N2b IN THE RIFT VALLEY LAKES BASIN Pre Q 800 Ngm 700 JAPAN INTERNATIONAL COOPERATION AGENCY (JICA) 600 500 N1_2n 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 13 0,000 140,000 150,000 16 0,000 17 0,000 180,000 190,000 200,000 210,000 220,000 23 0,000 240,000 250,000 26 0,000 27 0,000 280,000 290,000 300,000 310,000 320,000 33 0,000 340,000 350,000 36 0,000 37 0,000 380,000 390,000