Alkaline Rocks and Carbonatites of the World

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Paint Hills Islands

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Occurrence number: 
031-00-058
Country: 
Canada
Region: 
Quebec
Location: 
Longitude: -79, Latitude: 52.08

Peralkaline syenites occur on two of the Paint Hills Islands in James Bay. They are in sharp contact with the surrounding volcanic rocks and outcrops are traversed by quartz veins. They are homogeneous rocks consisting of about 70% coarse, euhedral microcline perthite, 3-15% albite, 20% aegirine-augite and accessories; arfvedsonite occurred in one thin section.

Age: 
Precambrian
References: 
REMICK, J.H. 1976. Wemindji area. Preliminary Report, Quebec Ministere des Richesses Naturelles, DPV-446: 1-51
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