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It was discovered by Arthur Hickman, a government geologist with the Geological Survey of Western Australia, in July 2007. [1] The discovery was made by chance while browsing Google Earth. [2] A 2012 government scientific drilling project in the centre of the crater confirmed in 2017 the impact of an iron-nickel meteorite. [3] [4]
Yarrabubba impact structure. Pha. Had. The Yarrabubba impact structure is the eroded remnant of an impact crater, situated in the northern Yilgarn Craton near Yarrabubba Station between the towns of Sandstone and Meekatharra, Mid West Western Australia. [2][3] With an age of 2.229 billion years, it is the oldest known impact structure on Earth.
Western Australia is the world's largest iron-ore producer (34% of the world's total), and extracts 66% (6.9% of world production) of Australia's 306 tonnes (9.8 million troy ounces) of gold in 2022. [53] It is a major world producer of bauxite, which is processed into alumina at four refineries providing 11% of total world production.
Political geography. Western Australia is divided into 139 local government areas, each of which is known as a city, town, or shire. These jurisdictions range in area from 1 square kilometre (0.39 sq mi) (Peppermint Grove) to 372,301 square kilometres (143,746 sq mi) (East Pilbara) and in population from little more than 100 (Sandstone) to more ...
The island is best known as the location of the Batavia wreck, mutiny and massacre. Batavia was wrecked on Morning Reef in June 1629. Most of the 316 passengers and crew of the Dutch East India Company ship were washed ashore on the smaller islands on the eastern side of the Wallabi Group. The commander, Francisco Pelsaert, and 47 other crew ...
List of impact structures in Australia. World map in equirectangular projection of the impact structures on the Earth Impact Database as of November 2017 (in the SVG file, hover over a structure to show its details) Map all coordinates using OpenStreetMap. This list includes all 27 confirmed impact structures in Australia as listed in the Earth ...
Quartz-pebble metaconglomerate (Jack Hills Quartzite), the rock type that contains Earth's oldest dated mineral grains (detrital zircon) Detrital zircons with ages greater than 4 billion years old have been found in these rocks, and a 4,404 ± 8 million year old zircon was found at Erawandoo Hill; [4] this is the oldest dated material originating on Earth; the date is in the Cryptic era of the ...
The Western Australian system of regions defined by the Government of Western Australia for purposes of economic development administration, which excludes the Perth metropolitan region, is a series of nine regions. These nine regions were established by the Regional Development Commissions Act 1993, which defined their extents and established ...