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K6 pipe K6 pipe is a diamondiferous diatreme in the Buffalo Head Hills kimberlite field of Northern Alberta, Canada. It is thought to have formed about 85 million years ago when is part of Alberta was volcanically active during the Late Cretaceous period.〔(Emplacement characteristics of Late Cretaceous and Paleocene pyroclastic and injected kimberlites in northern Alberta, Canada )〕 It is typical of melts that originated from the low mantle.〔(Alberta Geological Survey: Radiogenic Isotope Geochemistry of Kimberlitic Rocks in Northern Alberta: Constraints for Source of Magmatism and Emplacement Age )〕 ==See also==
*List of volcanoes in Canada *Volcanism of Canada *Volcanism of Western Canada
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「K6 pipe」の詳細全文を読む
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