Dragon pipe
Appearance
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
References
- ^ Petrogenetic considerations for the Late Cretaceous northern Alberta kimberlite province Archived May 26, 2011, at the Wayback Machine
- ^ "Alberta Geological Survey: Kimberlites, Indicator Minerals and Diamonds". Archived from the original on 2010-03-26. Retrieved 2009-11-16.