Alkaline Rocks and Carbonatites of the World

Funded by HiTech AlkCarb - New geomodels to explore deeper for Hi-Tech critical raw materials in Alkaline rocks and Carbonatites

Weyto

stripes

Occurrence number: 
054-00-053
Country: 
Ethiopia
Region: 
Main Ethiopian Rift
Location: 
Longitude: 37, Latitude: 5.53

Just east of the Weyto horst is an extensive cluster of phonolite plugs that may be related to phonolite lavas occurring west of the horst. These rocks contain zoned nepheline phenocrysts. There are also plugs of quartz trachyte amongst the phonolite plugs.

References: 
DAVIDSON, A. 1983. The Omo River project. Reconnaissance geology and geochemistry of parts of Ilubabor, Kefa, Gemu Gofa and Sidamo, Ethiopia. Bulletin, Ethiopian Institute of Geological Surveys, 2: 1-89.
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith