Treysa (meteorite)

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Treysa Meteorite
Meteorit von Treysa 3.jpg
Cut surface with Widmanstätten patterns
Type Iron meteorite
Structural classification medium octahedrite
Class Magmatic
Group IIIB
Country Germany
Region Schwalmstadt, northern Hesse
Observed fall Yes
Fall date1916-04-03
Found date1917-03-05
TKW 63.28 kilograms (139.5 lb)
Meteorit von Treysa 1.JPG
Treysa Meteorite (main section)
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Cast of the entire meteorite Meteorit von Treysa Abguss 1.JPG
Cast of the entire meteorite

The Treysa Meteorite, also known as the Rommershausen Meteorite (both Treysa and Rommershausen are districts of Schwalmstadt), is an astronomical relic found in a wooded area near the Rommershausen district of Schwalmstadt in northern Hesse, Germany. The meteorite made German astronomical history as one of the most significant confirmed meteorite collisions of recent history. It is classified as a medium octahedrite of the IIIB chemical class and shows Widmanstätten patterns.

Contents

History of recovery

On 3 April 1916 at 15:30, eyewitnesses reported a detonation like a clap of thunder and a cloud of smoke. This light-and-sound phenomenon was caused by a meteorite crashing onto the earth in a wooded area near Rommershausen.

Based on the eyewitness accounts, Alfred Wegener calculated the trajectory of the meteorite and its likely impact site. [1] In recognition of its scientific relevance, 300 Reichsmark were offered as a reward to the finder, and it was indeed eventually discovered near the calculated site. The forester Hupmann managed to locate it on 5 March 1917 in a wooded area near Rommershausen; a one-and-one-half-meter-deep impact crater contained the 63.28-kilogram (139.5 lb), 36-centimetre-wide (14 in) iron meteorite. It had been only slightly shattered by the impact and was almost completely preserved. The 23 slices and thin-ground sections cut from the meteorite have been studied by various geological and mineralogical research institutes.

Since 1986 a memorial stone placed at the site of impact by the Knüllgebirgsverein, a hiking and nature club named after the Knüllgebirge mountain range in Hesse, commemorates this cosmic event.

The meteorite is on display at the Mineralogischen Museum Marburg (Lahn), and there is a copy at the Museum der Schwalm in Ziegenhain. Directions to the meteorite impact location are posted on a path (Ringstrasse) in the Rommershausen forest.

See also

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References

  1. Wegener, Alfred (1918). "Über das planmäßige Auffinden des Metoriten von Treysa". Astronomische Nachrichten (in German). 207 (17): 185–190. Retrieved 2023-05-24.

Literature

50°56′40″N9°09′35″E / 50.944317°N 9.159733°E / 50.944317; 9.159733