Liverpool and Strangways craters, Northern Territory: Two structures of probable impact origin.
Abstract
Two circular structures in the Northern Territory, Australia, are identified as being of probable impact origin. At Liverpool Crater, 1.6 km in diameter, a ring of sandstone breccia with tangentially striking sandstone at the base is exposed. Quartz grains in the breccia exhibit planar features, mosaic structure, and cleavage, indicating moderate shock deformation. At Strangways crater, tangentially striking sandstone and siltstone units define a circular pattern about 16 km in diameter. In the interior are large outcrops of melt breccia with highly shocked inclusions and an outcrop of basement rock, which may mark a central uplift.
- Publication:
-
Journal of Geophysical Research
- Pub Date:
- 1971
- DOI:
- 10.1029/JB076i023p05387
- Bibcode:
- 1971JGR....76.5387G