Location of the Mountain Lake cluster in north-central Alberta, Canada.
The Mountain Lake cluster consists of two diatremes or volcanic pipes in Northern Alberta, Canada. It was emplaced during a period of kimberlite volcanism in the Late Cretaceous epoch.[1]
Although they were originally described as kimberlite or kimberlitic, the Mountain Lake (ML) rocks were later reclassified as alkaline ultramafic volcanics,[2] hybrid alkaline ultramafic rocks,[3] basanite or alkali olivine basalt.[4] Due to extensive clay alteration that obliterated much of their original mineralogy, the question of their proper classification remains unsettled.[3]
^Eccles, D.R., Heaman, L.M., Luth, R.W. and Creaser, R.A. (2003). "Petrogenetic considerations for the Late Cretaceous Northern Alberta kimberlite province. 8th International Kimberlite Conference, Extended Abstract, 5 p." (PDF). Archived from the original (PDF) on 2011-05-26. Retrieved 2014-08-13.{{cite web}}: CS1 maint: multiple names: authors list (link)
^Cite error: The named reference Clement was invoked but never defined (see the help page).
^ abSkupinski, A. and Langenberg, C.W. 2002. Petrography of the Mountain Lake pipe, Grande Prairie area, Alberta, Canada. Alberta Geological Survey, Special Report 15, 39 p.
^Eccles, D.R. (2014). "Northern Alberta kimberlite province: The first 20 years. Alberta Geological Survey, ERCB/AGS Bulletin 65, 116 p." (PDF). Archived from the original (PDF) on 2012-02-25. Retrieved 2014-10-19.
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