Petrography and mineralogy of the Lac de Gras kimberlite field, Slave Province, Northwest Territories : a comparative study

• Main Author: Masun, Katharine Melanie
• Other Authors: Mitchell, Roger H.
• Format: Thesis
• Language: English
• Published: 1999
• Subjects: Kimberlite Northwest Territories Lac de Gras Region; Mineralogy Northwest Territories Lac de Gras Region; Petrology Northwest Territories Lac de Gras Region; Northwest Territories; Lac de Gras
• Online Access: http://knowledgecommons.lakeheadu.ca/handle/2453/3114

The kimberlites studied from the Lac de Gras area are composed o f two broad textural types: hypabyssal kimberlite and volcaniclastic kimberlite. Hypabyssal kimberlite is present within small isolated dyke segments and in direct contact with volcaniclastic kimberlite within vent infill. The latter l...