Diagram showing the origin of fissure volcanoes from dikes intersecting the surface and feeding lava flows (NPS graphic)
By California Volcano Observatory
2022 (approx.)
Detailed Description
Graphic by Trista Thornberry-Ehrlich (Colorado State University) after Hughes and others (1999) -- Mafic Volcanism and Environmental Geology of the Eastern Snake River Plain.
Sources/Usage
Public Domain.
Original graphic from https://www.nps.gov/articles/000/fissure-volcanoes.htm