stripes
Occurrence number:
136-15-007
Country:
Russia
Region:
Omolon
Location:
Longitude: 149, Latitude: 64.67
Carbonatite:
No
This occurrence consists of small and sparse dykes and stocks of porphyritic alkaline picrite and teschenite-picrite with segregations of more leucocratic teschenite. Camptonites and lamprophyres with amphibole also occasionally occur. The rock-forming minerals of the suite are plagioclase, barkevikite, biotite and occasionally olivine, clino- and orthopyroxene and analcime.
Age:
Late Cretaceous, on geological evidence.
References:
LYCHAGIN, P.P. 1982. Alkali basic rocks in the North-East of the USSR. Pacific Geology 6: 85-93.
Location: