The Geology and Geochemistry of the Banded Iron Formation in Chago-werekalu, Wellega Province
| dc.contributor.advisor | Valera, Roberto (Prof.) | |
| dc.contributor.author | Getahun, Abera | |
| dc.date.accessioned | 2022-01-31T08:57:41Z | |
| dc.date.accessioned | 2023-11-18T09:49:19Z | |
| dc.date.available | 2022-01-31T08:57:41Z | |
| dc.date.available | 2023-11-18T09:49:19Z | |
| dc.date.issued | 1985-10 | |
| dc.description.abstract | The r ocks of the stulied area form nart of the ~ o llepa Birbir proup of the uppe r c08plex and consist of a series of me t ased i me ntary and plutonic proterozoic rocks. The winiera lo~ical assembl age indicate tha t t he metamorphism is of the r r eenshist facies. The variation diagram cons tructed for the va rious plut onic re e ks stronpl y supvest coma pmatic oripin by crysta l f rac ti ona ti on . Major and trace element ana lyses of re ore sentative samples of the Chago iron formation ? t he plutonic ann. YOllnp:er e f f us i ve rocks are presented . The Chago iron f ormation can be c las s i f i ed as nre cambrian banded iron for mation and is in J11any r espects siJrii l ar to the oxide fa cies iron format i on of Lake Superior t ype. The Cha go iron fo r mation consis t s only of Iron oxides and mi nor amoun t of sil i ca with total absence of iron silica t e, s ulfide and carbonate minerals. Trace element pe ochemis try sUPRests that t he iron f orma ti on was chemic ally prec i pitated as ox ida t e s ediments in which the principal i ron mineral, ma gne tite 1 was formed at low te mpera ture in a s ~lallow nea r shore environment . | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/29808 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Geology | en_US |
| dc.title | The Geology and Geochemistry of the Banded Iron Formation in Chago-werekalu, Wellega Province | en_US |
| dc.type | Thesis | en_US |