Bedout: A Possible End-Permian Impact Crater Offshore of Northwestern Australia

  title={Bedout: A Possible End-Permian Impact Crater Offshore of Northwestern Australia},
  author={Luann Becker and Robert J. Poreda and Asish R. Basu and Kevin O. Pope and T. Mark Harrison and Craig Nicholson and Robert P. Iasky},
  pages={1469 - 1476}
The Bedout High, located on the northwestern continental margin of Australia, has emerged as a prime candidate for an end-Permian impact structure. Seismic imaging, gravity data, and the identification of melt rocks and impact breccias from drill cores located on top of Bedout are consistent with the presence of a buried impact crater. The impact breccias contain nearly pure silica glass (SiO2), fractured and shock-melted plagioclases, and spherulitic glass. The distribution of glass and… 

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Response to Comment on "Bedout: A Possible End-Permian Impact Crater Offshore of Northwestern Australia"

Glikson ([ 1 ][1]) suggests that any “true” extraterrestrial impact structure should include shocked minerals (for example, quartz with planar deformation features, or PDFs), high-pressure polymorphs

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Comment on "Bedout: A Possible End-Permian Impact Crater Offshore of Northwestern Australia"

It is suggested that the Bedout basement high, offshore Western Australia, might represent an impact structure, in view of the site's well-defined circular Bouguer anomaly and seismic reflection data indicating a possible ring syncline.

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