Manicouagan impact crater.
Автор: Alternative View
Загружено: 2017-10-29
Просмотров: 620
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Manicouagan Reservoir lies within the remnant of an ancient eroded impact crater (astrobleme). The crater was formed following the impact of an asteroid with a diameter of 5 km (3.1 mi), which excavated a crater originally about 100 km (62 mi) wide, although erosion and deposition of sediments have since reduced the visible diameter to about 72 km (45 mi). It is the earth's sixth-largest confirmed impact crater according to rim-to-rim diameter.[4] Mount Babel is interpreted as the central peak of the crater, formed by post-impact uplift.
It is one of the oldest known impact craters. Research has shown that impact melt within the crater has an age of 214±1 million years. As this is 12±2 million years before the end of the Triassic, the impact that produced the crater cannot have been the cause of the Triassic–Jurassic extinction event.
Scady - Я есть Грут!
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