| 11. | Moilanen, J . and the Expert Database on Earth Impact Structures ( EDEIS ).
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| 12. | Later an amateur geologist Jarmo Moilanen discovered also shatter cones within the impact structure.
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| 13. | Two impact structures have been identified in the basin-Mount Toondina crater and Tookoonooka crater.
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| 14. | Its center is located near the town of largest confirmed impact structures on Earth.
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| 15. | John Weber and his associates presented fission track dating of apatite from this impact structure.
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| 16. | The impact structure is buried and is not visible.
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| 17. | Moilanen, J ., 2009 and the Expert Database on Earth Impact Structures ( EDEIS ).
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| 18. | The two other large impact structures on the planet are the Orientale basins on the Moon.
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| 19. | The age of the impact structure is somewhat contentious, in the absence of any radiometric dating.
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| 20. | Azuara is still listed as a confirmed impact structure in other data bases, e . g.
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