Download or read book Carbonatites, Nepheline Syenites, Kimberlites and Related Rocks in British Columbia written by British Columbia. Geological Survey Branch and published by Province of British Columbia, Ministry of Energy, Mines and Petroleum Resources. This book was released on 1994 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study documents alkaline rock occurrences in British Columbia; describes their petrography, geochemistry, economic geology, and field relationships; and determines the timing and tectonic controls of emplacement, providing a basis for future, detailed studies. Work was begun in 1984 and included field mapping during the summers of 1984, 1985, and 1986. All the carbonatite-syenite localities (with the exception of the Wicheeda Lake and Mount Bisson showings) and a large number of the diatreme breccias were mapped and sampled.