extinction level event concept from the Astronomy knowledge base

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physical phenomena > event > celestial event > impact event > extinction level event

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extinction level event

subject fact

extinction level event has average interval time 100 million years 2001-09-27 09:30:07.0
has definition impact event which can cause the extinction of many species on a planet
is a kind of impact event

impact event can produce a crater 2001-09-27 09:30:06.0

event has duration 2001-09-27 09:29:57.0
has synonym world point
has time of occurrence

extinction level event	has average interval time 100 million years
	has definition impact event which can cause the extinction of many species on a planet
	is a kind of impact event
impact event	can produce a crater
event	has duration
	has synonym world point
	has time of occurrence