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The Great Artesian Basin became an important water supply for cattle stations, irrigation, and livestock and domestic purposes, and is a vital life line for rural Australia. [9] To tap it, boreholes are drilled down to a suitable rock layer, and the pressure of the water often forces it up without the need for pumps .
When trapped water in an aquifer is surrounded by layers of impermeable rock or clay, which apply positive pressure to the water, it is known as an artesian aquifer. [1] If a well were to be sunk into an artesian aquifer, water in the well-pipe would rise to a height corresponding to the point where hydrostatic equilibrium is reached.
Part of the Great Artesian Basin is along the northern border of New South Wales and also extends north into Queensland. This is also known as Surat Basin. It occupies one fifth of the state of New South Wales. The eastern border extends from Bebo to Narrabri to Murrurundi to Dunedoo to Narromine. The basin was formed in the Jurassic and ...
Elizabeth Springs is one of a suite of nationally important artesian springs in the Great Artesian Basin, which is the world's largest artesian basin. The artesian springs have been the primary natural source of permanent water in most of the Australian arid zone over the last 1.8 Million years (the Pleistocene and Holocene periods). These ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 29 January 2025. Water located beneath the ground surface An illustration showing groundwater in aquifers (in blue) (1, 5 and 6) below the water table (4), and three different wells (7, 8 and 9) dug to reach it. Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in ...
The Great Artesian Basin situated in Australia is arguably the largest groundwater aquifer in the world (over 1.7 million km 2 or 0.66 million sq mi). [23] It plays a large part in water supplies for Queensland, and some remote parts of South Australia.
The Great Artesian Basin lies atop a layer of marine sandstone that formed the bottom of the inland Eromanga Sea. The Eromanga Sea was an inland sea across the Australian continent that formed in the Early Cretaceous. The sea extended from the Eromanga Basin northward to the Carpentarian Basin.
The desert is underlain by the Great Artesian Basin, one of the largest inland drainage areas in the world. Water from the basin rises to the surface at numerous natural springs, including Dalhousie Springs, and at bores drilled along stock routes, or during petroleum exploration. As a result of exploitation by such bores, the flow of water to ...