GEOLOGICAL MAP OF ARBA MINCH - AGRE MARRYAM AREA
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! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . ! . A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A ^ _ ^ _ ^ _ ! @ ! @ K' J' N 1235m 1285m L. Chamo L. Abaya Zefne Dila Wacha Laska Sawla Birbir Chencha Yirga Chefe Kemba Beto Arba Minch Chelelektu Gerese Tore Kele Gidole Agere Mariyam Key Afer Soyema Konso Guanguwa Zada D a ra S e g e n R i v e r W e y t o Ri v e r G o r s a G i n a K u l f o R i v er Gi g e s a G e l a n a Z ekusa K o m a S ile S ermel e Segen R iver B e s a Sa l a Gi d a b o K o n g a B e l e S a y a d o K e b e d a K u lfo R i v er Seg o G e l ana I y a n d a W e y t o R iv e r G ela na Burka S e g e n R i v e r 25.4 20.6 0 0 0 0 0 3.9 0 0 0 0 0 53.8 23 0 0 13.7 0 0 0 0 0 18 0 3.2 14.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 28.1 45.2 44.8 20.2 13.5 0 0 0 0 0 0 0 0 0 0 0 9 0 0 0 0 0 0 0 0 0 0 0 7.7 15.6 0 0 0 0 0 2.9 4.4 0 0 35.9 0 0 0 20 20 0 0 0 0 22.4 0 0 0 0 0 19.9 0 11.3 6.4 0 0 0 0 0 0 0 0 0 12.5 0 0 0 28.4 7.3 1.6 8.4 12.5 26.7 37.5 4 0 0 0 0 0 0 0 7.4 0 1.2 0 7.2 0 0 0 0 0 0 0 0 0 0 24.8 5 46 0 33 0 27 3.5 30.7 36 27 24.1 2 0 5.9 42.4 42.4 18.8 12.1 12.1 5.4 11.8 2 36.8 68.7 0 2.2 68.7 44.2 15.6 0 2.2 11.8 0 0 0 0 0 0 0 50 22.3 5.5 50.4 50.4 48.5 22.1 36.8 8.2 21 62 0.5 0 0 0 0 0 0 0 0 5.4 5 5.9 0 32.4 27.7 38.6 69.5 38.6 0 12.4 3.7 3.7 0 61 0 52 56.8 46 31.5 74 55 83 70 70 127 38 22.5 0 0 0 117 0 56 0 0 84 0 103.6 60 0 0 0 60 93 0 0 88.5 45 76.5 52.5 31.5 49.5 85.5 46.5 37 94 0 68 0 0 75.7 126 0 0 0 0 72 0 0 0 37.5 31.5 40.5 52.5 52.5 55.5 53 37.5 0 0 0 30 0 41 80 82.8 0 77 0 44.5 50 0 0 K J N' Bekawile Weyto Kolme Fasha Mecheke Doketu Bekawile Didiga Delbena Alduba Gewada Gelabo Gembo Sek'ama Gato Fuchicha Gato Mashile Kako Arguba Benata Kaysa Bako Boshkoro Dimele Zeyse Luda Derba Jeba Sire Gedeo Ch'ep'o Shele Zaba No.2 Zomba Kencho Gerda Chorso Golja Abel Sisota Sigiga Giwe Biloya Adis Ketema Lante Ononcho Mora Wachile Gerse Widese Fisiha Genet Konga Melka Lole Kedida Haru Foge Bukisa Shara Bekero Dumerso Adame Tulise Lekicha Resa Dido Holjo Halemo Repe Has Sokicha Adis Kofe Koti Hamus Gebeya Birbir Mariyam Meho Ezo Chichu Wajifo Chileshe Toylo Bonke Beza Genta Belta Gayle Otolo Layl Wib Hamer Gelela Shefete Gulta Yarte Dita Zala Debech Donki Laska Bulki Sezega Yela Gelta Wulo Kode Mela Neha Belta Laha Myzelo Morka M.Abaya-1 Yir-Ch-2 Ag-Ma-2 Pm Pm Pm ba G tb Pm G Pgs W G ba rh Ngm Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pm W Pgs Ngm Ngm Pgs Ngm Pgs Pgs Ngu Pgl Pgs Pgl Pgs Ngm Pgs rh rh G Pgl Pgl Pre Pgl Pgl Pgl Pgl Pgl Pre Ngm Pgl Pgl Pgl Pgl Pgl Pgl Pgl Pgl Pgl Pgl Pgl Pgl Pgl Pgl Pgl Pgl Pgl Pgl Pgl Pre Pre Pre Pgl Pre Pgl Pre Pgl Pgl Pre Pgl Pgl Ngu Pgs Ngm Pre Ngu Pre Ngm Ngm Ngu Ngu Ngm Pre Pre Pre Pre Pgl Pgl Pgl Pre Pgl Pgl Pre Pre Pgl Pgl Ngm Ngm Pgl Pgl Pre Pre Ngu Ngm Ngm Pgs Pgs Ngm Ngm Ngm Pre Pre Pgl Ngm Ngm Ngm Ngm Ngu Ngs Ngm Ngb Ngs Ngs ba ba ba ba ba ba Ngm Pgs Ngm Ngm Ngs Ngs Ngs Ngs Ngs Ngs Ngm Pre Pre Pgl Pgl Pgl Ngs Ngu Pre Pre Pre Pre Pgl Pgl Pre Ngs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgl Pgl Ngu Pre Ngu Ngu Ngu Ngu Ngu Ngu Ngu Ngm Q Pgs Ngu Ngu Ngu Ngm Ngm Ngm Pgs Pgs Ngm Pgs Ngm Pgs Pgs Pgs Ngm Pgs Ngm Pgs Ngu Ngm Ngm Pgs Pgs Ngm Ngu Pgl Pgl Pgl Pgl Pgl Pgl Ngm Pre Pre Pre Pre Pre Pre Pre Pre Pre Ngm Pgl Ngu Ngm Pre Pre Ngu Pgl Pre Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pgs Pre Pre Pre Pre Pgs Pgs Pgs Pre Pgs Pre Pre Pre Pre Pgl Pre Pre Pre Pre Pre Pgl Pgl Pre Pre Pre Pre Ngm Pgl Pgl Pgl Pgl Pgl Pgl ba ba Ngs Ngs Ngs Pre Pre Ngu Ngu Pgl Q Q Q Q Pre Q Pgl Pgl Pgl Pgl Pre Pre Q Pgl Ngm Ngm Ngm Pgs Q Q Q Pgs Ngm Pgl Ngu Q Q Q Q Pgs Q Q Q Q Q Q Pre Pgl Ngs Ngm Ngm Ngs Ngs Q Q Ngu ba ba Pre ba ba ba ba ba ba ba ba ba ba Pre Pre Pre Pgl Pgl Pre Q Pgl Pre Pre Pgl Ngm Ngm Q Q Pre Q Pre Ngu Pre Q Pgl Pre Pre Ngs Q Q Q Al Pre Pgs Pgs Pgs Pgs Q Pgl Ngs Ngm Pgl Ngu Pgl Pgl ba Pgl Q Q Q Q Pgl Pgs Pgl Q Q Q Pre Pre Pgl W Ngu Pgl Pre Q Pgl Q Pgl Pgl Pgl Pgl Pgl Pgl Pgl Q Pgs BH7 BH8 38°0'0"E 38°0'0"E 37°0'0"E 37°0'0"E 6°0'0"N 6°0'0"N 40 40 50 50 60 60 70 70 80 80 90 90 00 00 10 10 20 20 30 30 40 40 50 50 60 60 70 70 80 80 90 90 00 00 10 10 20 20 80 80 90 90 00 00 10 10 20 20 30 30 40 40 50 50 60 60 70 70 80 80 90 90 00 00 10 10 2 40 2 40 000m. E 2 50 2 50 2 60 2 60 2 70 2 70 2 80 2 80 2 90 2 90 3 00 3 00 3 10 3 10 3 20 3 20 3 30 3 30 3 40 3 40 3 50 3 50 3 60 3 60 3 70 3 70 3 80 3 80 3 90 3 90 4 00 4 00 4 10 4 10 4 20 4 20 5 80 000m. N 5 80 5 90 5 90 6 00 6 00 6 10 6 10 6 20 6 20 6 30 6 30 6 40 6 40 6 50 6 50 6 60 6 60 6 70 6 70 6 80 6 80 6 90 6 90 7 00 7 00 7 10 7 10 SODO - AWASA HOSAINA-ASELA KONSO - YABELO ARBA MINCH - AGRE MARRYAM DILA DIME BAKO HOSAINA JIMMA YABELO ARJO AHEREMARIAM ASELA NEGELE AKAKI BESEKA ISTIFANOS HAYK WACHILE NAZRET DODOLA/GOBA INDEX MAP GEOLOGICAL MAP OF ARBA MINCH - AGRE MARRYAM AREA 0 20 40 10 km ・The topographical map is based on Ethiopian Mapping Agency (EMA), 1979, 1994, 1995 and 1997 ・Geological Map of the Ethiopian Rift,Ethiopian Institute of Geological Survey (EIGS), Ministry of Mines and Energy,1981 ・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 ・Geological Map of Omo River Project area,Ethiopian Institute of Geological Survey (EIGS), Ministry of Mines and Energy,1983 ・Geothermal Exploration Project Ethiopian Lakes District Rift, exploitation of Langano-Aluto geothermal resources, Feasibility report,Ministry of Mines and Energy, elc electroconsult, Italy,1986 ・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 ・Hydrogeological and Engineering Geological Investigation of Chew Bahir Sheet,Geological Survey of Ethiopia (GSE),2000 ・Geological Map of the Ziway - Shala Lakes Basin,Dainelli et al., Department of Earth Sciences, University of Florence, Italy,2001 ・Geothermal resource Exploration in Abaya and Tulu Moye Gedemisa geothermal Prospects, Main Ethiopian Rift,Geological Survey of Ethiopia (GSE),2002 ・Hydrogeology and Engineering Geology of Awassa Lake Cachement,Geological Survey of Ethiopia (GSE),2003 ・Geology Yabelo MapSheet,Geological Survey of Ethiopia (GSE),2007 ・Butajira-Ziway Area Development Study Project, Hydrogical Map,Ministry of Water Resources, Ethiopian Water Technology Center (EWTEC),2008 ・Geological map of Rift Valley Lakes Basin,Ministry of Water Resources, Halcrow and GIRDC,2008 N K THE STUDY ON GROUNDWATER RESOURCES ASSESSMENT IN THE RIFT VALLEY LAKES BASIN JAPAN INTERNATIONAL COOPERATION AGENCY (JICA) Geological Map March 2012 SCALE 1:250,000 TRANSVERSE MERCATER PROJECTION J VERTICAL SCALE = 10 x HORIZONTALSCALE J' N' K' Kenya Kenya 300,000 290,000 280,000 27 0,000 26 0,000 250,000 240,000 230,000 220,000 210,000 37 0,000 36 0,000 350,000 340,000 330,000 320,000 310,000 Gigesa R. Dara R. Sala R. Konga R. Burka R. Burka R. Dila Guanguwa Yirga Chefe Chelelektu Tore Agere Mariyam I J Yir-Ch-2 K Ag-Ma-2 ba Pgs Ngm Pgl Pgs Pgs Pgs Pgl Pgl Pre Pgs Q Q Q Pre Pgl Pre Q ba Q 600 500 2,400 2,300 2,200 2,100 2,000 1,900 1,800 1,700 1,600 1,500 1,400 1,300 1,200 1,100 1,000 900 800 700 2,900 2,800 2,700 2,600 2,500 2,400 2,300 2,200 2,100 2,000 1,900 1,800 1,700 1,600 1,500 1,400 1,300 1,200 1,100 1,000 900 800 M BH7 I N Yir-Ch-2 Kulfo R. Gina R. Gelana R. Abaya Lake Arba Minch Yirga Chefe ba Pgs Pgs Pgl Pgl Pgl Pgs Pgs Pgs Ngm Pre Ngm Ngm ba Ngs Pgs Pgs Pgl Pgl Pgl Pgs Pgs Pgs Ngm Pre Ngm Ngm Q ba Pgl Ngs , , , , , , , , , , , , , , , , , 2,700 2,600 2,500 2,400 2,300 2,200 2,100 2,000 1,900 1,800 1,700 1,600 1,500 1,400 1,300 1,200 1,100 1,000 900 800 M BH8 Segen R. N Ag-Ma-2 Segen R. Q Q Pgl Pgl Pgl Pgl Pgl Pgl Pre Q Q Q Q Q Q Ngu Q Pgl Woreda Capital ! . 16.00 - Survey Point of Transient-phenomenon (or Time-domain) Electromagnetic Exploration Method ^ _ TEM National Boundary Boundaries Developed Area ! ( Caldera edge 6.00 - 16.00 2.50 - 6.00 0.75 - 2.50 0.01 - 0.75 Spring Discharge [l/s] Basin Boundary Lake Swamp Lakes Major Rivers Rivers # * Volcano / Volcanic Cone Inferred geology boundary Geology boundary Inferred fault, by satellite images Inferred fault, downthrown shown, by satellite images Normal fault, by satellite images Normal fault, downthrow shown, by satellite images Major fault, by satellite images Major fault, downthrown shown, by satellite images Inferred fault Inferred fault, downthrown shown Normal fault Normal fault, downthrow shown Major fault Major fault, downthrown shown Geological Structure ! . Zone Capital ! . Region Capital Towns Gravel Asphalt Roads ! @ JICA Well Specific capacity [l/min/m] Draw down [m] Static water level [m] Total depth [mbgl] Borehole (Well) A Geology Al Q lac2 Pm Vol rb lac1 Y ob W G tb ba lake rh N2b NQs rht N1_2n N1n N1ar Ngs Ngu Ngb Ngm Pgs Pgl Mes Pre Alluvium; Fine sand - mud Unclassified Fluvial Deposits; Sandy gravel-mud Bulbla Lacstrine Deposits; Lake deposits such as gravel, sand and mud Corbetti Pumice Flow & Fall Deposits; Pumice falls and pumice flow deposits Corbetti Rhyolitic Volcanics; Rhyolite lava flows and Obsidian lava flows Butajira Recent Basalt; Basalt lavas and reddish brown basaltic scoria Meki Lacustrine Deposits; Lake deposits such as poorly-sorted gravel, sand, pumice, tuff, and volcanic sand Langano Poorly Welded Pumiceous Pyroclastics; Yellowish white rhyolitic pumice tuff Kulumusa Highly Welded Tuff; Rhyolitic to andestic welded tuff Ketar River Acidic Volcanic Sedimentary Rocks; Rhyolitic tuffs and pumice tuffs Gonde Strongly Green Welded Tuff; Rhyolitic to andestic welded tuff Adami Tulu Basaltic Pyroclastics; Basaltic tuff breccias and lapilli tuffs Ogolche Pleistocene Basalt; Massive basalt lavas Lekansho Lacustrine Deposits; Lake deposits such as sand stone and alternate layer Gademotta Rhyolite; Rhyolite lava flows and rhyolitic tuffs N2b Basalt; Basalt lavas and basaltic pyroclastics NQs Rhyolite; Rhyolitic tuffs N1_2n Rhyolitic Volcanics; Plagiocrase rhyolite tuff and rhyolite lava flows containing obsidian N1_2n Rhyolitic Tuff; Plagiocrase rhyolitic tuff, pumice tuff and crystal tuff N1n Basalt; Anchar Basalt N1ar Rhyolite; Rhyolite Sharenga Rhyolite; Rhyolite piles and necks Upper Basalt; Porous basalt lavas Beyana Tuff; Lapilli tuff with minor laminated tuff Middle Basalt; Porphyritic basalt lavas Shole Welded Tuff; Densely-welded rhyolitic welded tuff Lower Basalt; Porphyritic basalt lavas Adigrat Sandstone, Antaro Limestone; Sandstone, Shale and Limestone Biotite Gneiss, Pegmatite; Biotite Gneiss, Granite, Biotite Metagranite Holocene Pleistocene Plio-Pleistocene Pliocene Miocene Eocene-Oligocene MESOZOIC PRECAMBRIAN
Transcript of GEOLOGICAL MAP OF ARBA MINCH - AGRE MARRYAM AREA
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Pre PgsPgs
Pgs
Pgs
Q
Pgl
NgsNgm
Pgl
Ngu
Pgl
Pgl
ba
Pgl
Q
Q
Q
Q
Pgl
Pgs
Pgl
Q
Q
Q
Pre
Pre
Pgl
W
Ngu
Pgl
Pre
Q PglQ
Pgl
Pgl
Pgl
Pgl
Pgl
Pgl
Pgl
Q
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BH7
BH8
38°0'0"E
38°0'0"E
37°0'0"E
37°0'0"E
6°0'0"
N
6°0'0"
N
40
40
50
50
60
60
70
70
80
80
90
90
00
00
10
10
20
20
30
30
40
40
50
50
60
60
70
70
80
80
90
90
00
00
10
10
20
20
80 80
90 90
00 00
10 10
20 20
30 30
40 40
50 50
60 60
70 70
80 80
90 90
00 00
10 10
240
240000m.E
250
250
260
260
270
270
280
280
290
290
300
300
310
310
320
320
330
330
340
340
350
350
360
360
370
370
380
380
390
390
400
400
410
410
420
420
5 8000
0m. N
580
590 590
600 600
610 610
620 620
630 630
640 640
650 650
660 660
670 670
680 680
690 690
700 700
710 710
SODO - AWASA
HOSAINA-ASELA
KONSO - YABELO
ARBA MINCH - AGRE MARRYAM
DILADIME
BAKO
HOSAINAJIMMA
YABELO
ARJO
AHEREMARIAM
ASELA
NEGELE
AKAKI BESEKA
ISTIFANOS HAYK WACHILE
NAZRET
DODOLA/GOBA
INDEX MAPGEOLOGICAL MAP OF ARBA MINCH - AGRE MARRYAM AREA
0 20 4010km
The topographical map is based on Ethiopian Mapping Agency (EMA), 1979, 1994, 1995 and 1997Geological Map of the Ethiopian Rift,Ethiopian Institute of Geological Survey (EIGS), Ministry of Mines and Energy,1981Hydrogeology of the Lakes Region, Ethiopia (Lakes Ziway, Langano, Abiyata, Shalla and Awassa),Ethiopian Institute of Geological Survey (EIGS), Ministry of Mines and Energy,1982Geological Map of Omo River Project area,Ethiopian Institute of Geological Survey (EIGS), Ministry of Mines and Energy,1983Geothermal Exploration Project Ethiopian Lakes District Rift, exploitation of Langano-Aluto geothermal resources, Feasibility report,Ministry of Mines and Energy, elc electroconsult, Italy,1986Geology of Agere Maryam Area,Geological Survey of Ethiopia (GSE),1994Hydrogeological, geophysical and engineering Geological Investigation of Yabelo Sheet,Geological Survey of Ethiopia (GSE),2000Hydrogeological and Engineering Geological Investigation of Chew Bahir Sheet,Geological Survey of Ethiopia (GSE),2000Geological Map of the Ziway - Shala Lakes Basin,Dainelli et al., Department of Earth Sciences, University of Florence, Italy,2001Geothermal resource Exploration in Abaya and Tulu Moye Gedemisa geothermal Prospects, Main Ethiopian Rift,Geological Survey of Ethiopia (GSE),2002Hydrogeology and Engineering Geology of Awassa Lake Cachement,Geological Survey of Ethiopia (GSE),2003Geology Yabelo MapSheet,Geological Survey of Ethiopia (GSE),2007Butajira-Ziway Area Development Study Project, Hydrogical Map,Ministry of Water Resources, Ethiopian Water Technology Center (EWTEC),2008Geological map of Rift Valley Lakes Basin,Ministry of Water Resources, Halcrow and GIRDC,2008
N
K
THE STUDY ON GROUNDWATER RESOURCES ASSESSMENT IN THE RIFT VALLEY LAKES BASINJAPAN INTERNATIONAL COOPERATION AGENCY (JICA)
Geological Map March 2012
SCALE 1:250,000 TRANSVERSE MERCATER PROJECTION
J
VERTICAL SCALE = 10 x HORIZONTALSCALE
J'
N'
K'
K e n y aK e n y a
600
500
2,400
2,300
2,200
2,100
2,000
1,900
1,800
1,700
1,600
1,500
1,400
1,300
1,200
1,100
1,000
900
800
700
100,00090,00080,00070,00060,00050,00040,00030,00020,00010,0000 2000,000190,000180,00017 0,00016 0,000150,000140,000130,000120,000110,000 3000,000290,000280,00027 0,00026 0,000250,000240,000230,000220,000210,000 380,000 390,00037 0,00036 0,000350,000340,000330,000320,000310,000
BH4ABBH10
BH9N
Tiliku Dedaba R. Laftu R. Melka Oda R. Denbi R. Tikur Wiha R. Gidabo R. Kola R. Gigesa R. Dara R. Sala R.
Konga R. Burka R. Burka R.Arsi Negele Shashemene Awasa Leku Dila Guanguwa
Yirga ChefeChelelektu Tore Agere Mariyam
Langano Lake
Lake
CBH9N
DBH3
E IJYir-Ch-2
KAg-Ma-2
LT10-2
rht
Pm
tbW
Gba N2b
rhtrht
N2b
N2b
Al WY
ob
tb tb
rhlac2 lac2 lac2Al
rh
rh
Al Y W W GG
W
rhba
PgsNgm
Pgl
Pgs
PgsPgs
Pgl
Pgl
Pre
Pgs
Q Q Q Pre
Pgl
Pre
Q
QNgm
Ngm
N1-2n
batbG
ba ba
baob
lac1
N1_2n
N1_2nN1_2n
N1_2n
Pm
QVolob
W GWGsample lost
WGN1_2n
WGtbbarh
YWobGtb
600
500
2,400
2,300
2,200
2,100
2,000
1,900
1,800
1,700
1,600
1,500
1,400
1,300
1,200
1,100
1,000
900
800
700
2,900
2,800
2,700
2,600
2,500
2,400
2,300
2,200
2,100
2,000
1,900
1,800
1,700
1,600
1,500
1,400
1,300
1,200
1,100
1,000
900
800
MBH7
INYir-Ch-2
Kulfo R. Gina R. Gelana R.
Abaya Lake
Arba Minch
Yirga Chefe
baPgs
Pgs
Pgl
PglPgl
Pgs
PgsPgs
Ngm
Pre
Ngm
Ngm
ba
Ngs
PgsPgs
Pgl
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PgsPgs
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Pre
Ngm
Ngm
Qba
PglNgs
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
2,700
2,600
2,500
2,400
2,300
2,200
2,100
2,000
1,900
1,800
1,700
1,600
1,500
1,400
1,300
1,200
1,100
1,000
900
800
MBH8
Segen R.
NAg-Ma-2
Segen R.Q
QPgl Pgl
Pgl
Pgl
Pgl
Pgl
PreQ
Q Q
Q
Ngu
QPgl
Woreda Capital!.
16.00 -
Survey Point of Transient-phenomenon (or Time-domain) Electromagnetic Exploration Method _̂
TEM
National Boundary
Boundaries
Developed Area!(
Caldera edge
6.00 - 16.002.50 - 6.000.75 - 2.500.01 - 0.75
Spring Discharge [l/s]
Basin Boundary
LakeSwamp
LakesMajor Rivers
Rivers
#* Volcano / Volcanic Cone
Inferred geology boundaryGeology boundaryInferred fault, by satellite imagesInferred fault, downthrown shown, by satellite imagesNormal fault, by satellite imagesNormal fault, downthrow shown, by satellite imagesMajor fault, by satellite imagesMajor fault, downthrown shown, by satellite imagesInferred faultInferred fault, downthrown shownNormal faultNormal fault, downthrow shownMajor faultMajor fault, downthrown shown
Geological Structure
!. Zone Capital!. Region Capital
Towns
GravelAsphalt
Roads
!@ JICA Well
Specific capacity [l/min/m]Draw down [m]
Static water level [m]Total depth [mbgl]
Borehole (Well)A
Geology Al Q
lac2 Pm Vol rb
lac1
Y ob W G tb ba
lake
rh N2b NQs
rht N1_2n N1n N1ar
Ngs Ngu Ngb Ngm
Pgs Pgl
Mes
Pre
Alluvium; Fine sand - mud Unclassified Fluvial Deposits; Sandy gravel-mud Bulbla Lacstrine Deposits; Lake deposits such as gravel, sand and mud Corbetti Pumice Flow & Fall Deposits; Pumice falls and pumice flow deposits Corbetti Rhyolitic Volcanics; Rhyolite lava flows and Obsidian lava flows Butajira Recent Basalt; Basalt lavas and reddish brown basaltic scoria Meki Lacustrine Deposits; Lake deposits such as poorly-sorted gravel, sand, pumice, tuff, and volcanic sand
Langano Poorly Welded Pumiceous Pyroclastics; Yellowish white rhyolitic pumice tuff Kulumusa Highly Welded Tuff; Rhyolitic to andestic welded tuff Ketar River Acidic Volcanic Sedimentary Rocks; Rhyolitic tuffs and pumice tuffs Gonde Strongly Green Welded Tuff; Rhyolitic to andestic welded tuff Adami Tulu Basaltic Pyroclastics; Basaltic tuff breccias and lapilli tuffs Ogolche Pleistocene Basalt; Massive basalt lavas Lekansho Lacustrine Deposits; Lake deposits such as sand stone and alternate layer
Gademotta Rhyolite; Rhyolite lava flows and rhyolitic tuffs N2b Basalt; Basalt lavas and basaltic pyroclastics NQs Rhyolite; Rhyolitic tuffs
N1_2n Rhyolitic Volcanics; Plagiocrase rhyolite tuff and rhyolite lava flows containing obsidian N1_2n Rhyolitic Tuff; Plagiocrase rhyolitic tuff, pumice tuff and crystal tuff N1n Basalt; Anchar Basalt N1ar Rhyolite; Rhyolite
Sharenga Rhyolite; Rhyolite piles and necks Upper Basalt; Porous basalt lavas Beyana Tuff; Lapilli tuff with minor laminated tuff Middle Basalt; Porphyritic basalt lavas
Shole Welded Tuff; Densely-welded rhyolitic welded tuff Lower Basalt; Porphyritic basalt lavas
Adigrat Sandstone, Antaro Limestone; Sandstone, Shale and Limestone
Biotite Gneiss, Pegmatite; Biotite Gneiss, Granite, Biotite Metagranite
Holocene
Pleistocene
Plio-Pleistocene
Pliocene
Miocene
Eocene-Oligocene
MESOZOIC
PRECAMBRIAN
