Meteorite Crater

sign meteorite crater

Dalgaranga crater is a small meteorite impact crater located on Dalgaranga pastoral station 75 km west of Mount Magnet (or north of Yalgoo) in Western Australia. It is only 24 m in diameter and 3 m deep, making it Australia's smallest impact crater (with exception of the smallest members of the Henbury crater field).

Coordinates 27º38 6”S 117º17 20”E

Meteorite Crater
Location: Dalgaranga Station, 100km north of Yalgoo
Opening Hrs: Daylight Hours
Disabled Access: No
Website: Website
Features: Sign posted. No facilities on site.
Contact: Shire Office
Contact Ph: 08 9962 8042
Contact Fax: 08 9962 8020
Email: shire@yalgoo.wa.gov.au


meteorite crater


The crater was discovered by an Aboriginal stockman named Billy Seward in 1921. The meteorites were found shortly after by Gerard Wellard, the station manager, when Seward took him to the site.

Though discovered in 1921, it was not until 1923 that meteorite fragments were sent to the Western Australian Museum and it was not reported in the scientific literature until 1938.

The bedrock at the site is weathered Archaean granite of the Yilgarn Craton. The discovery of fragments of mesosideritestony-iron meteorite around the crater confirms an impact origin, making this crater unique as the only one known to have been produced by a mesosiderite projectile. Asymmetries in the crater structure and the ejecta blanket imply that the projectile impacted at low angle from the south-southeast. The age is not accurately constrained but must be young because it is so well preserved for its small size, and the meteorite fragments have not weathered away; some authors suggest an age of as young as 3000 years.

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