The role of fluidisation in the formation of volcaniclastic kimberlite: grain size observations and experimental investigation
AL Walters, JC Phillips, RJ Brown, M Field… - Journal of volcanology …, 2006 - Elsevier
Deep, steep-sided kimberlite pipes in southern Africa are normally partially filled with
multiple units of a characteristically massive, structureless volcaniclastic rock, here termed
massive volcaniclastic kimberlite (MVK). These units can be arranged in a pseudo-
concentric, nested 'pipes-within-pipes' structure. Several key observations on typical MVK
from the Venetia kimberlite pipes, South Africa, indicate that fluidisation may have been an
important process during its emplacement. These include:(1) the thorough mixing together of …
multiple units of a characteristically massive, structureless volcaniclastic rock, here termed
massive volcaniclastic kimberlite (MVK). These units can be arranged in a pseudo-
concentric, nested 'pipes-within-pipes' structure. Several key observations on typical MVK
from the Venetia kimberlite pipes, South Africa, indicate that fluidisation may have been an
important process during its emplacement. These include:(1) the thorough mixing together of …