Acraman crater

impact crater in South Australia, Australia

Acraman crater is a deeply eroded impact crater in the Gawler Ranges of South Australia.

The crater is the circular area

It is marked by Lake Acraman, a circular ephemeral dry lake about 20 kilometres (12 mi) in diameter. The crater and the later discovery of its ejecta were reported in the journal Science in 1986.[1][2] The evidence for impact includes the presence of shatter cones and shocked quartz in shattered bedrock on islands in Lake Acraman.

References change

  1. Williams, G.E. (1986). "The Acraman impact structure: source of ejecta in late Precambrian shales, South Australia". Science. 233 (4760): 200–3. Bibcode:1986Sci...233..200W. doi:10.1126/science.233.4760.200. PMID 17737291. S2CID 30059305.
  2. Gostin, V.A.; Haines, P.W.; Jenkins, R.J.F.; Compston, W.; Williams, I.S. (1986). "Impact Ejecta Horizon Within Late Precambrian Shales, Adelaide Geosyncline, South Australia". Science. 233 (4760): 198–200. Bibcode:1986Sci...233..198G. doi:10.1126/science.233.4760.198. PMID 17737290. S2CID 11307364.