Coleção mineral 20 peças- 2000 g
N.º 82982781
Impactito da estrutura Hummeln - Småland, Suécia - Altura: 36.9 mm - 10.9 g
N.º 82982781
Impactito da estrutura Hummeln - Småland, Suécia - Altura: 36.9 mm - 10.9 g
The Hummeln structure was confirmed in 2015 as an impact crater in the province of Småland, Sweden. It is a 1.2 kilometer (0.75 mi) wide depression in Lake Hummeln and is believed to have formed between 470 and 443 million years ago, during the Ordovician. Several studies of meteorites indicate that a large asteroid impact occurred approx. 470 mln. years in the asteroid belt of our solar system. The Ordovician meteor event is associated with the fall of the remains of a large L-chondrite meteorite. This is indicated by an abundance of fossil L-chondritic meteorites in a quarry in Sweden and increased concentrations of ordinary chondritic chromite grains in sedimentary rocks of this time. The breakup of the meteorite scattered fragments into Earth-crossing orbits, a chronology that is also supported by shock ages in many L-chondrite meteorites falling to Earth today. This special impact is a great specimen for any collection, however it should be clear that this is not a meteorite but was formed as a result of the tremendous pressure and speed of the meteorite hitting the ground and interacting with the earth's rocks.
Também poderá gostar
Este objeto foi mostrado em
Como comprar na Catawiki
1. Descubra algo especial
2. Faça a licitação vencedora
3. Faça um pagamento seguro