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ESR 2001-05

Major- and Trace- Element Geochemistry of Kimberlitic Rocks in Northern Alberta

Samples from the Mountain Lake pipes and the Buffalo Head Hills and Birch Mountains fields contain low SiO2 and Na2O/K2O, with Cr, Ni, MgO, rare-earth elements (REE), Zr and Nb concentrations elevated relative to their abundance in common crustal ... Show Abstract

Eccles, D.R.  Luth, R.W.  2003-05-01

ESR 2002-07

Petrographic Characteristics of Selected Kimberlitic Rocks in Northern Alberta

Abstract: This report investigates the petrogenesis of kimberlite in Alberta. Five kimberlite pipes in the northern Alberta kimberlite province were selected for detailed petrography: K4 and K6 from the Buffalo Head Hills and Legend, Phoenix and Kendu from the Birch Mountains. The main objective is to complement and expand upon the whole-rock geochemistry with optical mineralogical observations of selected pipes. A petrographic-geochemical comparison shows identification of the primary mineral assemblage, together with whole-rock geochemical interpretation, that uses both major and trace elements. This provides a complementary tool to classify Alberta kimberlitic rocks. Place Keywords 83n 83o 83p 84a 84b 84c 84f 84g 84h alberta birch mountains buffalo head hills canada kendu phoenix Theme Keywords diamond digital data geochemistry geology kimberlite petrography rocks

Eccles, D.R.  2004-02-01