Alkaline Rocks and Carbonatites of the World

Setup during HiTech AlkCarb: an online database of alkaline rock and carbonatite occurrences

Ega

stripes

Occurrence number: 
033-00-003
Country: 
Chad
Location: 
Longitude: 21.92, Latitude: 15.75
Carbonatite: 
No

Sonet (1963) has mapped a plug about 2 km in diameter of a basic rock which is referred to as 'theralite'. However, from the brief description, the rock is not alkaline, although it may contain normative nepheline.

References: 
SONET, J. 1963. Notice explicative sur la Feuille Niéré. Carte Géologique de Reconnaissance à l'échelle du 1/500,000, République du Tchad.
Location: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith