Shoemaker (formerly known as Teague Ring) is an impact structure (or astrobleme), the deeply eroded remnant of a former impact crater, situated in arid central Western Australia, about 100 klm North-Northeast of
Wiluna.It is 30 km in diameter and the age is estimated to be 1630 million years (Paleoproterozoic).
The crater contains seasonal lakes that produce salt deposits as they evaporate.
The crater is exposed to the surface. Crater is regarded as the oldest known Australian impact structure to date. A dark, crescent-shaped inner ring surrounds the core, which consists of uplifted granitic rocks. The outer ring is composed of Precambrian sedimentary rocks.
Named after American geologist and
comet hunter Eugene Shoemaker, who tragically died in a car accident in 1997 while on an expedition involving meteorite impact craters.