DescriptionVolcanicPipe.jpg English: Diagram of a volcanicpipe. Date 8 June 2005 Source http://www.premiumdiamonds.co.za/Diamonds%20Education.htm Author
based on file:VolcanicPipe.jpg I, the copyright holder of this work, hereby publish it under the following licenses: This file is licensed under the Creative
DescriptionVolcanicPipe-hu.jpgVolcanicpipe Source Image:VolcanicPipe.jpg Author Daniel Tar (Dani) Other versions Image:VolcanicPipe.jpg (original version)
surface crater of a [[volcanicpipe]] or [[diatreme]] about 100m across. Its sheer walls have a water pool at the bottom. The pipe turns at a dept English