Shock attenuation across the central portion of a complex impact structure - Slate Islands, Lake Superior, Canada

Details Shock attenuation across the central portion of a complex impact structure - Slate Islands, Lake Superior, Canada Shock attenuation across the central portion of a complex impact structure - Slate Islands, Lake Superior, Canada

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28..309d&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 309.

Computer Science

Earth Planetary Structure, Hypervelocity Impact, Shock Discontinuity, Lake Superior, Igneous Rocks, Breccia, Minerals, Canada, Earth Crust, Metamorphism (Geology), Asteroids, Comets

Scientific paper

The Slate Islands archipelago represents the central, uplifted portion of a 30-32-km-diameter, complex impact structure. Target rocks consist of a variety of Archean and Proterozoic supracrustal and igneous rocks. Polymictic and monomictic, clastic matrix breccias and pseudotachylite in the target rocks, suevitic, allogenic breccias, shatter cones, and shock metamorphic mineral deformation in target rocks and breccia components provide convincing evidence that the structure was formed as a result of asteroid or comet impact.

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