Alkaline Rocks and Carbonatites of the World

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

Gavrilovskii

stripes

Occurrence number: 
136-13-005
Country: 
Russia
Region: 
Kuznetsk-Minusinsk
Location: 
Longitude: 88.58, Latitude: 55.3
Carbonatite: 
No

Nepheline syenite forms small bodies (0.25x0.125 km) which cut a large intrusion of gabbro, pyroxenite and rocks intermediate between gabbro and syenite. The nepheline syenite comprises microcline (55%), cancrinite and nepheline (20%), albite (10%), clinopyroxene (9%) and biotite as well as titanite, zircon, apatite, orthite, fluorite, calcite and liebenerite.

References: 

VRUBLEVSKY, V.A. and KORTUSOV, M.P. 1963. Nepheline syenite of the right side of the Kiya River in the vicinity of the Gavrilovka Settlement. In I.K. Bazenov and Yu.D. Skobelev (eds) The geology and petrography of nepheline rocks of Kuznetsk Alatau. 193-201. Gosgeoltekhizdat, Moscow.

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