Sill swarm

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A sill swarm in geology is a major group of sills intruded within continental crust. They are located under volcanic edifices, including flood basalt provinces and large lava plateaus. The volume of sill swarms can be similar to dike swarms.[1]


  1. ^ Best, Myron G., Igneous and Metamorphic Petrology, Wiley - Blackwell, 2002, 2nd ed., p. 216 ISBN 978-1-4051-0588-0