About this place
The term Maar is derived from the Latin "mare" (=sea). It is a funnel-shaped type of volcano, formed by eruptions of water vapor that is "blasted" into the landscape and often presents itself as a bowl-shaped form. A maar is formed when rising magma and water-bearing rock layers meet. Violent explosions occur, and the surrounding rock, along with the magma, is shattered into its smallest components and hurled out of the explosion crater. A cavity forms in the area of the explosion focus, which transitions into an explosion vent. If the rock above the cavity collapses, the explosion vent becomes a collapse or maar crater. After volcanic activity subsided, the craters filled with water. In total, more than 70 maar volcanoes have been counted in the Eifel; twelve maars are still filled with water, while the rest have already silted up.
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