Direct evidence of ancient shock metamorphism at the site of the 1908 Tunguska event

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Paola Vannucchi, Jason P. Morgan, Damiano Della Lunga, Christopher L. Andronicos, W. Jason Morgan

Earth and Planetary Science Letters
Volume 409, 1 January 2015, Pages 168–174
doi:10.1016/j.epsl.2014.11.001

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