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



Occurrence number: 
Longitude: 40.12, Latitude: 12.42

This is a large volcano lying immediately south of the Limmo peralkaline granite (Fig. 72). It is principally of basaltic composition but rhyolitic products are found in the central parts, as are intermediate lavas, indicated on the 1:500,000 geological map (Barberi et al., 1971b) as being "dark trachytes, mugearites" and "hawaiites, andesine basalts, ferrobasalts". Descriptions of the rhyolites have not been found but they are likely to be peralkaline.

BARBERI, F., CHEDEVILLE, E., FAURE, H., GIGLIA, G., MARINELLI, G., SANTACROCE, R., TAZIEFF, H. and VARET, J. 1973b. Geology of Northern Afar (Ethiopia) (with a geological map, scale 1:500,000). Revue de Geographie Physique et de Geologie Dynamique, Paris, 15: 443-89.
Fig. 3_72 The distribution of Ethiopia occurrences 10-23 (after Barberi et al., 1973b).
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith