Bulletin Volcanologique

, Volume 35, Issue 3, pp 579–590

Compound and simple lava flows and flood basalts

  • G. P. L. Walker
Session «Geology And Structure»

DOI: 10.1007/BF02596829

Cite this article as:
Walker, G.P.L. Bull Volcanol (1971) 35: 579. doi:10.1007/BF02596829

Abstract

Compound lava flows, defined as those lavas which are divisible into flowunits, commonly have a shield-like form and are thought to develop when the rate of extrusion of lava is relatively low.Simple lava flows, defined as those lavas which are not divisible into flow-units, are thought to form when the rate of extrusion of lava is relatively high. A logical definition oflava flow must embrace both simple lava sheets and substantial lava shields (compound lava flows) up to 600 m high. Flood basalt piles include both compound and simple flows, but the most extensive and far-reaching flows are simple and they are believed to form when the rate of extrusion of lava is particularly high.

Copyright information

© Stabilimento Tipografico Francesco Giannini & Figli 1970

Authors and Affiliations

  • G. P. L. Walker
    • 1
  1. 1.Imperial CollegeLondon

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