Holzmaar

Maare, Hitsche Maar (front) Dürres Maar (middle), Holzmaar (rear), aerial photo (2015)

The Holzmaar

The Holzmaar is located in the Vulkaneifel in Rhineland-Palatinate almost halfway between Gillenfeld (2.5 km southwest) and Eckfeld . The maar has a size of approx. 6.8  hectares with a diameter of 325 m and a depth of 21 m; it is located in a nature reserve and is almost completely surrounded by forest.

It is fed by a source stream of the Sammetbach, which crosses the maar. The Dürre Maar is also in the immediate vicinity .

On the south and south-west bank, the maar is silted up by sediments , whose drill cores provide extensive information about the climate up to the last glacial period . The sediments of the Holzmaar go back to 23,220 calendar years BP . The classification was made possible by comparing the sequence obtained in the maar basin and its dates with the Meerfelder Maar . The point in time of the maximum of the last glacial period derived from the warven chronology is in good agreement with that from the data of the Greenland Ice Sheet Project (GISP2), but they contradict to a certain extent with those of the Greenland Ice Core Project (GRIP).

In the sequence of the sediments, three strata areas were found in which a particularly large amount of dust was deposited in the maar lake. If these dust-rich layers correspond to the ice advances of the northern German inland ice, an equally accurate age determination of the terminal moraines there is possible at suitable locations in northern Germany by comparing with the exact age of the dust in the maar sediments.

literature

• Werner D'hein: Nature and culture guide Vulkanlandeifel. With 26 stations on the "German Volcano Road". Gaasterland-Verlag, Düsseldorf 2006, ISBN 3-935873-15-8
• H. Wolfgang Wagner et al., 2012: Trier und Umgebung, Sammlung geologischer Führer , Vol. 60, 3rd edition, Bornträger, ISBN 978-3-443-15094-5 , (see :) http: //www.schweizerbart .de / publications / detail / artno / 011006040
• Bernd Zolitschka , Paleoclimatic Significance of Laminated Sediments: Holzmaar (Eifel, Germany), Lake C2 (Northwest Territories, Canada) and Lago Grande di Monticchio (Basilicata, Italy) . Relief Soil Palaeoclimate, Volume 13, 1998. ISBN 978-3-443-09013-5

See also

• List of nature reserves in the Bernkastel-Wittlich district
• List of nature reserves in the Vulkaneifel district

Web links

Commons : Holzmaar  - Collection of images, videos and audio files

• Review of the research report Paleoclimatic significance of laminated sediments - Holzmaar (Eifel, Germany), Lake C2 (Northwest Territories, Canada) and Lago Grande di Monticchio (Basilicata, Italy). 1998

Individual evidence

1. ↑ Bernd Zolitschka, Achim Brauer , Jörg FW Negendank, Hagen Stockhausen and Andreas Lang: Annually dated late Weichselian continental paleoclimate record from the Eifel, Germany . In: Geology . tape 28 , no. 9 , September 2000, p. 783-786 , doi : 10.1130 / 0091-7613 (2000) 28 <783: ADLWCP> 2.0.CO; 2 .

Coordinates: 50 ° 7 ′ 8 ″  N , 6 ° 52 ′ 45 ″  E