Dalgaranga crater
Impact crater in Western Australia / From Wikipedia, the free encyclopedia
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]
Quick Facts Impact crater/structure, Confidence ...
Dalgaranga crater | |
---|---|
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 |
Country | Australia |
State | Western Australia |
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