spatter rampart

spatter rampart

[′spad·ər ‚ram‚pärt]
(geology)
A low, circular ridge of pyroclastics built up around the margins of small volcanoes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
During the walk, you will get a first-hand look at actual lava flows, steam vents releasing inner gases and spatter ramparts. And in the rain forest, you will see many of Hawai'i's endemic birds, plants and other wildlife that make their home in Volcanoes National Park.
Hummocky ridges are formed when the fissure eruption becomes confined to several vents along its length, similar to spatter cones or spatter ramparts that form along fissures in Iceland and Hawaii.