Acraman crater

Acraman crater is a deeply eroded impact crater in the Gawler Ranges of South Australia. 
It is marked by Lake Acraman, a circular ephemeral dry lake about in diameter. The crater and the later discovery of its ejecta were reported in the journal "Science" in 1986. The evidence for impact includes the presence of shatter cones and shocked quartz in shattered bedrock on islands in Lake Acraman.