Scoria crater or pseudocrater

Pseudocraters result when lava flows over shallow lakes, marshes, or rivers. The lava incorporates water from its substrate, which boils and escapes as steam. The result is a small scoria crater. In the background is the Krafla volcano.

Bibliographic Details
Other Authors: Wojtal, Steven F.
Language:unknown
Published: Oberlin College Library 1997
Subjects:
Petrology
Igneous
Iceland
Gas
Krafla
Mývatn
Sudar
Online Access:http://server15963.contentdm.oclc.org/u?/p15963coll1,1622
Description
Summary:Pseudocraters result when lava flows over shallow lakes, marshes, or rivers. The lava incorporates water from its substrate, which boils and escapes as steam. The result is a small scoria crater. In the background is the Krafla volcano.

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