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
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.