Explanatory notes to the thematic geoscientific maps of Ethiopia at a scale of 1 : 50,000, Map Sheet 0637-D3 Arba Minch

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F18%3A00000070" target="_blank" >RIV/00025798:_____/18:00000070 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Explanatory notes to the thematic geoscientific maps of Ethiopia at a scale of 1 : 50,000, Map Sheet 0637-D3 Arba Minch
Original language description
The Arba Minch map sheet is found covering an area that straddles the area between the western escarpment and the floor of the Main Ethiopian Rift in southern Ethiopia. Geologically, it is comprised of lower Eocene to Pleistocene volcanics of episodic eruptions, which have a bimodal composition with alternating basic volcanic rocks and acidic pyroclastic rock intercalations. The geochemical signatures suggest a setting of intra-plate origin as expected, with possible fractionation in the case of acidic pyroclasts.Primary structures in the volcanic rocks have a subhorizontal to gently E or W dipping flow foliation. The main tectonic overprints are of a brittle origin in the form of extension joints and normal faults, which are quite consistent with the marginal older faults andfault escarps of the Main Ethiopian Rift. The approach adopted was to produce a comprehensive description of the area investigated including the set of geological and specialized thematic maps.
Czech name
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Czech description
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Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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