A fissure eruption occurs when magma rises through cracks or fissures in the Earth’s crust, rather than through a central vent, leading to the formation of long, linear volcanic features. These eruptions can produce extensive lava flows and are often associated with rift zones or large igneous provinces. Fissure eruptions are significant in understanding volcanic processes and the formation of basaltic plateaus.
Reference: Thordarson, T., & Self, S. (1993). The Laki (Skaftár Fires) and Grímsvötn Eruptions in 1783–1785. Bulletin of Volcanology.