stripes
Occurrence number:
031-00-027
Country:
Canada
Region:
British Columbia
Location:
Longitude: -121.05, Latitude: 50.75
Carbonatite:
No
A northeast-southwest-trending dyke of alnoite, averaging 1.2 m in thickness, cuts sedimentary and volcanic rocks of the Nicola Group (Triassic). The rock contains books of biotite 3 cm in diameter and phenocrysts of olivine, mainly serpentinized, and zoned augite in a groundmass of the same minerals together with melilite, perovskite, magnetite and calcite.
Age:
Not known, possibly related to the extensive Miocene basalts occurring to the north.
References:
DRYSDALE, C.W. 1914. Geology of the Thomson River Valley below Kamloops Lake, B.C. Summary Report for 1912, Geological Survey of Canada: 115-50.
Location: