Intensive Variables in Kimberlite Magmas, Lac de Gras, Canada and Implications for Diamond Survival |
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| Authors: | FEDORTCHOUK YANA; CANIL DANTE |
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| Institution: | SCHOOL OF EARTH AND OCEAN SCIENCES, UNIVERSITY OF VICTORIA, PO BOX 3055, 3800 FINNERTY ROAD, VICTORIA, BC, V8W 3P6, CANADA |
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| Abstract: | Crystallization temperatures (T) and oxygen fugacities (fO2)of kimberlite magma are estimated from oxides included in olivinephenocrysts from the Leslie, Aaron, Grizzly and Torrie kimberlitepipes in the central Slave Province, Canada. Crystallizationtemperatures recorded by olivine–chromite pairs at anassumed pressure of 1·0 GPa are 1030–1170°C± 50°C, with a mean of |
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| Keywords: | : chromite crystallization temperature kimberlite olivine oxygen fugacity |
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