Dragon pipe explained

The Dragon pipe is a diatreme associated with the Birch Mountains kimberlite field in northern Alberta, Canada. It is thought to have formed about 75 million years ago when this part of Alberta was volcanically active during the Late Cretaceous period.^{[1] [2]}

See also

• Volcanism of Canada
• Volcanism of Western Canada
• List of volcanoes in Canada

Notes and References

1. http://www.ags.gov.ab.ca/minerals/diamonds/8IKC_Abstract.pdf Petrogenetic considerations for the Late Cretaceous northern Alberta kimberlite province
2. Web site: Alberta Geological Survey: Kimberlites, Indicator Minerals and Diamonds . 2009-11-16 . 2010-03-26 . https://web.archive.org/web/20100326152129/http://www.ags.gov.ab.ca/minerals/diamonds/diamonds.html . dead .