Alkaline Rocks and Carbonatites of the World

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Bolshoi Espe And Malyi Espe

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Occurrence number: 
084-00-051
Country: 
Kazakhstan
Location: 
Longitude: 81.45, Latitude: 48.15

These two adjacent bodies, of about 4 km2 and 2 km2, are both stock-like in form and both are composed of albite-riebeckite granites of a range of grain sizes.

Age: 
Whole rock K-Ar determinations indicated 247 Ma (Ermolov et al., 1988).
References: 
ERMOLOV, P.V., VLADIMIROV, A.G. and TIKHOMIROVA, N.I. 1988. The petrology of silica oversaturated agpaitic alkaline rocks. Nauka, Novosibirsk. 86 pp.
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