Dalgaranga crater
From Wikipedia, the free encyclopedia
| Dalgaranga crater | |
|---|---|
 The Dalgaranga crater in September 2009 | |
| Impact crater/structure | |
| Confidence | Confirmed |
| Diameter | 24 m (79 ft) |
| Depth | 3 m (9.8 ft) |
| Age | ?3 ka Holocene |
| Exposed | Yes |
| Drilled | No |
| Bolide type | Mesosiderite |
| Location | |
| Location | Yilgarn craton |
| Coordinates | 27°38′6″S 117°17′20″E / 27.63500°S 117.28889°E |
| Country | Australia |
| State | Western Australia |
  Location of the crater in Western Australia | |
Dalgaranga crater is a small meteorite impact crater located on Dalgaranga pastoral station 75 km (47 mi) northwest of Mount Magnet (or north of Yalgoo) in Western Australia. It is only 24 m (79 ft) in diameter and 3 m (9.8 ft) deep, making it Australia's smallest impact crater (with exception of the smallest members of the Henbury crater field).[1][2] Though discovered in 1921, it was not reported in the scientific literature until 1938.[3] The bedrock at the site is weathered Archaean granite of the Yilgarn craton. The discovery of fragments of mesosiderite stony-iron meteorite around the crater confirms an impact origin,[4] making this crater unique as the only one known to have been produced by a mesosiderite projectile.[5]
