Volcanic domes and lineations in egmont national park

Abstract

Three zones of radial lineations interpreted as faults are described on the lower slopes of Mt Egmont. Magma is considered to have ascended along three of the faults to form four cumulodomes—The Dome, Skinner Hill, and the two Beehives. Jointing patterns, concentric to the margins, suggest that the cumulodomes formed largely by internal growth. © 1971 Taylor & Francis Group, LLC.