maar
Sign in to savethumb|The ten-day phreatomagmatic eruption that formed the [[Ukinrek maars]] thumb|The Devil Mountain Lakes on the Seward Peninsula in western Alaska – the largest maar-based lakes in the world
Article
19 sectionsContents
- Etymology
- Maar lakes and dry maars
- Distribution
- Germany
- Eifel maars
- Water-filled maars of the Eifel
- Dry maars of the Eifel
- Broader use of the term ''maar''
- Maars outside the Eifel
- Rest of Europe
- Americas
- Middle East and Africa
- Asia and Oceania
- Gallery
- See also
- Footnotes
- References
- Literature
- External links
thumb|The ten-day phreatomagmatic eruption that formed the [[Ukinrek maars]] thumb|The Devil Mountain Lakes on the Seward Peninsula in western Alaska – the largest maar-based lakes in the world
A maar is a broad, low-relief volcanic crater caused by a phreatomagmatic eruption (an explosion which occurs when groundwater comes into contact with hot lava or magma). A maar characteristically fills with water to form a relatively shallow crater lake, which may also be called a maar.