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The geology of Australia includes virtually all known rock types, spanning a geological time period of over 3.8 billion years, including some of the oldest rocks on earth. Australia is a continent situated on the Indo-Australian plate .
The Marree Man is a modern geoglyph created in 1998 in Outback South Australia. It depicts an Aboriginal man hunting with a boomerang or stick. It lies on a plateau at Finniss Springs, 60 km (37 mi) west of the township of Marree in central South Australia, approximately 12 km north-west of Callanna.
Australia separated from Gondwana 99 Ma, and initially remained warm and humid with rainforest vegetation. Inland Australia had systems of rivers and lakes with abundant wildlife. Fossil birds, platypus, frogs and snakes are present from this period. From 30 Ma there was a period of global cooling, and from 15 Ma the Antarctic ice sheet formed.
Mysterious ancient earth rings located on the outskirts of Melbourne were made by Australia’s Aboriginal Wurundjeri Woi-wurrung people hundreds of years ago, a new study finally reveals.. The ...
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 Deniliquin multiple-ring feature is a distinct deeply buried structure in southeast Australia. It is named after the town of Deniliquin.Its characteristics suggest that it is associated with an asteroid impact structure of diameter 520 km (320 mi), which would make it the largest one on Earth, exceeding the largest known one, the Vredefort impact structure of about 300 km (190 mi) in diameter.
Australia has the third-largest exclusive economic zone of 8,148,250 km 2 (3,146,060 sq mi). This EEZ does not include the Australian Antarctic Territory (an additional 5,896,500 km 2 (2,276,700 sq mi)). Australia has the largest area of ocean jurisdiction of any country on Earth. [5] It has no land borders.
The Australian plate, which Australia is on, is moving faster than other plates. The Australian plate is moving about 6.9 cm (2.7 inches) a year in a northward direction and with a small clockwise rotation. The Global Positioning System must be updated due to the movement, as some locations move faster. [13] [14] [15]