Winton formation
The Winton Formation is a formation in the Great Artesian Basin in Australia . This sequence Cretaceous sedimentary rocks is from the northern to western central Queensland and further south in New South Wales and South Australia minded .
The Winton Formation is one of the largest formations in Australia. At the Diamantina National Park the formation is rather thin at about 400 meters , while the thickness at Thargomindah is almost 1200 meters. Through drilling it was found that thin layers of coal are also embedded in the layers. Most of the formation is deeply weathered, resulting in the formation of laterite and silicate . In the areas that have been subject to severe erosion, the opal fields are in western Queensland. Fossils are found in areas that are less severely eroded.
The formation's sedimentary rocks are largely derived from recycled volcanic material. For example, volcanoes were active in the chalk on the northeast coast of Queensland .
From the Winton formation come numerous remains of dinosaurs such as sauropods and theropods ; Finds include Australovenator , Diamantinasaurus and Wintonotitan . The remains of crocodiles, fish, lungfish, turtles, insects and freshwater clams have been found west of the city of Eromanga .
Individual evidence
- ↑ a b qm.qld.gov.au : The Winton Formation , in English, accessed on February 16, 2012
- ↑ uq.edu.au : The Wintons sauropods , in English, accessed on February 16, 2012
- ↑ qm.qld.gov.au : The Wintons's Hunter , in English, accessed February 16, 2012
- ↑ qm.qld.gov.au : Mathilda's Diamantina (River Lizard) , in English, accessed on February 16, 2012
- ↑ qm.qld.gov.au : Watt's Winton Giant , in English, accessed on February 16, 2012
- ↑ uq.edu.au : Other Winton Formation fossils , in English, accessed on February 16, 2012