Alkaline Rocks and Carbonatites of the World

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

Kalmius

stripes

Occurrence number: 
171-00-015
Country: 
Ukraine
Location: 
Longitude: 37.83, Latitude: 47.5
Carbonatite: 
No

This massif is considered to be the surface manifestation of a large batholith - the so-called Azov Sea coastal batholith, which represents a deeply eroded syenite-granosyenite analogue of the anorthosite-rapakivi granite plutons (Karamsin, 1979). The batholith has been traced for 100 km in an east-west direction and for 55 km north-south, the total outcrop being 1500 km2. Alkali pyroxenes and amphiboles are found in some rocks. Veins of carbonate and fluorite are developed in the syenites and associated with faulting.

Age: 
A K-Ar determination on amphibole from amphibole syenite gave 1700 Ma.
References: 

KARAMSIN, B.S. 1979. The Azov batholith and its structure. Geologicheskii Zhurnal, 4: 137-43.
KRIVDIK, S.G. and TKACHUK, V.I. 1986. Formational classification of the alkaline rocks of the Ukrainian shield. Tezisy Dokladov VII Vesesoyuznogo Petrograficheskogo Obshchestva. Novosibirsk, 85-7.
SEMENENKO, N.P. SAVCHENKO, N.A. and BRITCHENKO, A.D. 1977. Cycles of volcanism of the Dneiper-Donetz basin and Donbass and metal-bearing problems of the northern slope of the Ukrainian Shield. In: Volcanism and ore-formations of the Dneprovo-Donetz basin and Donbass. AN Ukraine SSR, 156 pp.

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith