Joint 52nd Northeastern Annual Section / 51st North-Central Annual Section Meeting - 2017

Paper No. 26-6
Presentation Time: 1:30 PM-5:30 PM

A PETROGRAPHIC AND GEOCHEMICAL ANALYSIS OF THE KRVY KIMBERLITE, LAKE TAMISKAMING KIMBERLITE FIELD, ONTARIO, CANADA


KUPERS, Stephanie Adele1, SCHMIDT, Mariek1 and CAMPBELL, Ian2, (1)Department of Earth Sciences, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, ON L2S 3A1, Canada, (2)Lake Shore Gold Corporation, 181 University Avenue, Suite 2000, Toronto, ON M5H 3M7, Canada, sk11xi@brocku.ca

The Lake Tamiskaming Kimberlite Field, in Ontario, Canada is host to multiple kimberlite pipes, such as the KRVY Kimberlite Pipe, south of Latchford, Ontario. Drill core of this kimberlite pipe, collected by Temex Resources Corporation, confirmed the diamondiferous nature, with microdiamonds being retrieved. Thin sections of the drill core samples suggest the pipe is highly altered through serpentinization. Euhedral to subhedral grains of mica, such as phlogopite and biotite, compose the phenocryst and matrix components of the samples. Electron microprobe analysis will be used to determine the composition of the micas, in order to constrain the origin conditions of these grains, determining if the grains originate from crustal or magmatic components. Micro X-ray Diffraction will determine the mineralogy in the samples. Other likely xenocrystic minerals include quartz, etc. Textural and compositional attributes of the KRVY Kimberlite will be compared to data collected from the approximately twelve known kimberlite pipes within 25 kilometres (15.5 miles) of the specified kimberlite in order to find similarities or patterns. Geochemical analysis will better constrain the formation conditions of this pipe and allow comparison with other surrounding pipes in the Lake Tamiskaming Kimberlite Field.