Strohn fairy tale

The Strohner Märchen (also Strohner Maarchen ) is a dry maar near Strohn in the Vulkaneifel . Its cauldron is elongated-oval and has a diameter of approx. 210 × 140 meters. The name comes from the small size for a maar with the diminutive form of fairy tales (Maarchen). Together with the Pulvermaar in the north and the adjacent Römerberg, the Strohner Märchen belongs to the nature reserve “Pulvermaar with Römerberg and Strohner Märchen”.

Emergence

Geologically , the Strohner Maarchen is not a pure maar, but its own small cinder volcano with a sloping chimney , which was converted into a maar volcano by steam explosions at a later stage. First of all, slag, volcanic ash and volcanic bombs were ejected from the sloping vent towards the north . They formed a semicircular wall, today's Römerberg. Of the impact craters of volcanic bombs in the fine basalt - tuff , which form the top layer on Römerberg, the origin can be read from the Strohner fairy tale. Closer to the fairy tale there is a flat wall, which consists exclusively of rocks from the subsurface. This was ejected in a subsequent steam explosion. The basin that remains is an NNW-SSE oriented ellipse and has a length of 210 and a width of 140 m.

After the end of the volcanic activity, a crater lake formed , which quickly silted up, and the raised bog , which is still preserved today, developed . These bog formations emerged after pollen analysis studies around 8800 BC. BC, the latest point in time for the formation of the tuffs of the maar eruption lying under the moor. Vulcanologists from the Smithsonian Institution place the last eruption of the Strohner and the Pulvermaar between 8600 and 8000 BC. A.

Current condition

The Strohn fairy tale is about to finally silt up , as the high moor is still growing today. The Maarkessel is therefore covered by a layer of peat almost 10 meters thick . The moor character means that a large number of rare plants and animals have settled. The available habitat is ideal for many of these species.

The crater wall of the maar is almost completely removed today and is hardly visible any more.

References and comments

↑ Also entered on maps as Dürres Maar , but it is not the Dürre Maar at the Holzmaar
^ Ordinance on the nature reserve "Pulvermaar with Römerberg and Strohner Märchen". (PDF; 93 kB) Trier district government, March 14, 1984, accessed on June 16, 2017 .
^ ^A ^b Wilhelm Meyer: Geology of the Eifel . 1st edition. Schweizerbarts'che Verlagbuchhandlung, Stuttgart 1986, ISBN 3-510-65127-8 , pp. 320 .
↑ Lee Siebert, Tom Simkin and Paul Kimberly: Volcanoes of the World . 3. Edition. Smithsonian Institution / University of California Press, Washington, Berkeley, Los Angeles, London 2010, ISBN 978-0-520-26877-7 , pp. 50 (English).
↑ Westeifel-Vulkanfeld in the Global Volcanism Program of the Smithsonian Institution (English). Retrieved June 16, 2017.

Web links

Commons : Strohner Märchen - Collection of pictures, videos and audio files

Information and pictures

50.122225 6.928523Coordinates: 50 ° 7 ′ 20 ″ N , 6 ° 55 ′ 42.7 ″ E

[1] Also entered on maps as Dürres Maar , but it is not the Dürre Maar at the Holzmaar

[2] Ordinance on the nature reserve "Pulvermaar with Römerberg and Strohner Märchen". (PDF; 93 kB) Trier district government, March 14, 1984, accessed on June 16, 2017 .

[Meyer-3] A ^b Wilhelm Meyer: Geology of the Eifel . 1st edition. Schweizerbarts'che Verlagbuchhandlung, Stuttgart 1986, ISBN 3-510-65127-8 , pp. 320 .

[Siebert-4] Lee Siebert, Tom Simkin and Paul Kimberly: Volcanoes of the World . 3. Edition. Smithsonian Institution / University of California Press, Washington, Berkeley, Los Angeles, London 2010, ISBN 978-0-520-26877-7 , pp. 50 (English).

[Smithsonian-5] Westeifel-Vulkanfeld in the Global Volcanism Program of the Smithsonian Institution (English). Retrieved June 16, 2017.