Geochronology radiometric dating of rocks and minerals
It was formed by water dissolving and re-depositing chemicals in the granite as it runs down the cliff face. The mountain is an isolated volcanic core rising 797 metres above sea level near the historical villages of Tilba Tilba and Central Tilba. This has been achieved by combining exploration methods such as deep seismic surveys with geochronology methods, including use of equipment such as the Sensitive High-Resolution Ion Microprobe, or SHRIMP.This equipment uses uranium and lead isotopes from tiny portions of zircon crystals which have been extracted from rock samples to calculate the age of the crystal based on the natural decay rate of uranium to lead.Earth uplifting and folding about 300 - 400 million years ago tipped the rock to create the present vertical orientation from the original horizontal sedimentary strata.Erosion of the surrounding area then left Uluru and nearby Kata Tjuta exposed.The name Kata Tjuta means 'many heads' in traditional Aboriginal language. Proterozoic - Early Palaeozoic rocks and the Tyennan Orogeny in central Victoria: the Selwyn Block and its tectonic implications. Note: This list contains the oldest known rocks from each State and Territory at October 2009.Karlwe Karlwe, or the Devil's Marbles, near Wauchope in the Northern Territory are a collection of large rounded granite boulders, many of which are precariously balanced on top of another. In some cases the ages are yet to be determined accurately and is limited by the nature of the rock and analytical techniques.
An eroded remnant, Uluru was laid down in an inland sea during the Cambrian Period about 500 million years ago.The SHRIMP is central to Geoscience Australia's geochronology program.Formerly named Ayers Rock, this massive sandstone rock covers an area of 3.3 square kilometres, and is 9.4 kilometres around its base.The Indigenous name for Mount Augustus is Burringurah. Formed more than 2700 million years ago, Wave Rock is 14 metres high, and 110 metres long. Evolution of Pre-1.8 Ga basement rocks in the western Mt Isa Inlier, northeastern Australia-Insights from SHRIMP U-Pb dating and in-situ Lu-Hf analysis of zircons.