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Integrated Geophysical Methods in Base Met Al Expwration and Studies of Shear Structures in kAtta II, Wollega

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dc.contributor.advisor Mammo, Tilahwn (PhD)
dc.contributor.author Berhe, Alemayehu
dc.date.accessioned 2018-06-28T13:09:55Z
dc.date.available 2018-06-28T13:09:55Z
dc.date.issued 1998-06
dc.identifier.uri http://localhost:80/xmlui/handle/123456789/4718
dc.description.abstract The Katta II area is situated in the western wonega, about 7 km east of the Nejo two. This area belongs to the Nejo series metasedimentry metavolcanic and intrusive rocks of the Upper Proterozoic metamorphosed in the greenschist facies. Phyllite, different types of schists including graphitic schist, quartzjte, gossaniferrous and metavolcanic are the prevalent rock types in Katta II. A large number of geological investigation and borehole dri1Iing in Katta II were canied out in the years between 1970 and 1982. As a result, occurrences of copper, zinc, lead, gold and cobalt are reported. The purpose of this paper is mainly to outline the concepts of using integrated geophysical data to delineate the position of structural features and identifY the base metal mineralization zone and thereby determining the most probable locations of economic importan.:e. For this purposes reevaluation of the existing IP/resistivity data and detailed magnetic and EM surveys were done. The results of the qualitative interpretation are presented and discussed in relation to the available geological, geochemical and borehole information. The interpretation is made on the bases of experimental, theoretical, and field model curves. Preliminary results show that shear structures control the mineralization. The investigation further indicates that the abundance of graphitic schist in the study area causes serious interpretational problem._ For thorough understanding of the anomalous zones and their qualitative description, frequency domain IP, gravity, radiometric surveys and quantitative interpretation of the magnetic data are proposed en_US
dc.language.iso en en_US
dc.publisher Addis Ababa Universty en_US
dc.subject kAtta II en_US
dc.title Integrated Geophysical Methods in Base Met Al Expwration and Studies of Shear Structures in kAtta II, Wollega en_US
dc.type Thesis en_US

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