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maar (MAHR) - n., a shallow, flat-floored, circular crater formed by an explosive ash eruption, often filled with water.
A coneless volcanic site. The ash explosion is typically caused by groundwater being heated by rising magma and going in a suddenly bang of steam -- and after it all blows over, said groundwater then fills the depression, resulting in a shallow, circular lake. From German, from the local name for such lakes in the Eifel district (North Rhine-Westphalia, on the Belgian border),
---L.
A coneless volcanic site. The ash explosion is typically caused by groundwater being heated by rising magma and going in a suddenly bang of steam -- and after it all blows over, said groundwater then fills the depression, resulting in a shallow, circular lake. From German, from the local name for such lakes in the Eifel district (North Rhine-Westphalia, on the Belgian border),
---L.
