Morasko Meteorite Nature Reserve

52.49027777777816.896388888889Koordinaten: 52 ° 29 ' 25 " N, 16 ° 53' 47" O

The meteorite was Morasko on November 12, 1914 - shortly after the beginning of the First World War - near the village Morasko, about 10 km north of Poznan discovered (now Poznań in Poland).

When lifting a gun emplacement, a German sergeant came about half a meter below the surface to a lump of metal with a weight of 77.5 kg. One in Berlin analyzed sample showed that it was meteoritic material with an iron content of 92%.

In the following years further fragments were performed with a total weight of about 350 kg has been found in the area. A single piece with 92 kg located at the Geological Institute of the Academy of Sciences in Warsaw. The largest single piece was found in 2006 and weighs 164 kg.

The ponds and pits around, however, were only identified in the 1960s as craters at the impact (Impact) are originated from Meteoroidenbruchstücken. The stray field is composed of 8 craters from 5 to 100 meters in diameter.

The impact likely occurred 5,000 years ago. Back then raced a massive celestial body across contemporary Poland and came with a speed 11000-18000 km / h in the Earth's atmosphere, where most of evaporated in the air. A 200 -tonne scrap piece shattered into small height above the ground in a large pressure wave.

The original meteoroid comes from the asteroid belt. The meteoritic residue is classified as gross octahedrite the group IIICD. Chemical composition: 92 % iron; 7% nickel; 500 ppm of germanium; 100 ppm gallium; 1 ppm iridium.