Tvären
Sign in to saveTvären is a circular bay close to Studsvik, Sweden.
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Tvären is a circular bay close to Studsvik, Sweden.
Within the bay is an ancient buried impact crater about in diameter. It was first identified using reflection seismology. The crater is estimated to be about 455 million years old (Late Ordovician).
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3 mapped locations
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Earth
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geographic coordinate system
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digital object identifier
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meteorite
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geologic time scale
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Ordovician
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Södermanland County
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impact crater
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breccia
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Chicxulub crater
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Eugene Merle Shoemaker
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Vredefort crater
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tektite
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Karakul
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impact event
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Late Heavy Bombardment
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Popigai crater
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Manicouagan Reservoir
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Sudbury Basin
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list of minor planets: 7001–8000
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