Geological and Geochemical Mapping in Ethiopia

EthiopienFS_MAPPING_Ethiopia 10/8/10 2:35 PM Page 1
Geological and Geochemical
Mapping in Ethiopia
MINERAL RESOURCES OF
More than 50 % of Ethiopia is
covered by geological maps of
1:250,000 scale maps and the
country will be 100% covered by
2015. Finalised maps are available
both in hard copy print and soft
copy.
Background
Basic geoscience mapping is helpful in
natural resources development, infrastructure
development, environmental
protection, natural hazard identification,
and for scientific research and education.
More systematic geoscience mapping in
the country was started since the establishment
of the Geological Survey of
Ethiopia (GSE) in 1968, either independently
by the Ethiopian government or in
collaboration with other international
organizations. Given the increasingly
importance of geoscience mapping for
the public, the GSE recently reorganised
the redesigned the internal procedures
and brought the geoscience mapping
together into one process called “BASIC
GEOSCIENCE MAPPING CORE PROCESS”.
High-grade Precambrian
Undifferentiated gneisses and schists
Low-grade Precambrian
Metavolcano-sediments
Metaultramafic-mafics
Lake
Tana
Addis Ababa
Precambrian
Phanerozoic Intrusives
Gabbro
Diorite
Granite-tonalite
Paleozoic Rocks
Sandstone and tillites
Mesozoic Rocks
Undifferentiated sediments
Cenozoic Rocks
Early-Mid Tertiary basalt
Upper Tertiary-Quaternary -
basalt
Mid Tertiary-Quaternary -
felsic rocks
Early Tertiary sediment
Simplified geological map of Ethiopia with localities of building stone in the central and southern parts
of the country.
Geology: Modified from Mengesha et al.(1996)
Geological map of Ethiopia, second edition, 1:2,000,000
Geological mapping
The entire country is covered by
1:2,000,000 geological map, which was
first published in 1973 and edited in 1996,
while the compilation of 1:250,000 scale
maps are still ongoing. At present 51% of
the country is covered by 1:250,000 scale
maps. These maps are available both in hard
copy print and soft copy.
Geochemical mapping
Geochemical surveys at different scales
were conducted in different parts of the
country with particular emphasis has
been given to assess the mineral potential
of the Precambrian rocks. To date
1:250,000 scale geological map coverage.

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Ministry of Mines and Energy of Ethiopia
MINERAL RESOURCES OF
The Ethiopian government has approved a
five year (2011-2015) growth and transfor-
Geochemical surveys at a scale of less or equal to 1:100,000.
~20% of the country is covered by 1:100,000 mation strategic plan. In line with this strategic
framework it has been decided to:
and less scale geochemical surveys. As of
2009 systematic geochemical mapping at
scale of 1:250,000 integrated with geological • Complete the !.: 250.000 scale geological
and geophysical mapping is started. Along map coverage by 2015.
with 1:250,000 scale mapping, 1:100,000 • Increase the coverage of the 1:250,000 scale
scale geochemical surveys for prospective geochemical map of the country to 49%.
areas are planned to be conducted as of • Compile 1:2,000,000 scale geochemical atlas
2010.
and metallogenic map of the country.
Dear Investor
We take this opportunity to welcome you
to Ethiopia
We promise to make every possible
effort to provide you all required information
on the mineral sector in Ethiopia
If you require information on the mining
law, licensing conditions and the
investment climate in Ethiopia
Please contact the Mineral Licensing and
Administration Core Processes:
Ministry of Mines and Energy
Mineral Licensing and Administration
Core Processes
P.O.Box 486
Addis Ababa, Ethiopia
Tel. +251 11 6461214
Fax +251 11 6463454
Email:
www.
The Future plan
If you require information on the geology
and mineral opportunities in Ethiopia
Please contact The Geological Survey of
Ethiopia (GSE):
Lake
Tana
Geological Survey of Ethiopia
P.O.Box 2303
Addis Ababa, Ethiopia
Tel. +251 6 464482
Fax +251 6 463326
Addis Ababa
Exaple of 1:250.000
geological map.
Email: Survey@ethionet.gov.et
www.geology.gov.et
We are looking forward to your mining
investment in Ethiopia