Tookoonooka impact structure
(Redirected from
Tookoonooka crater
)Tookoonooka impact structure | |
---|---|
Impact crater/structure | |
Confidence | Confirmed |
Diameter | 55–66 km (34–41 mi) |
Age | 128 ± 5 Ma Early Cretaceous |
Exposed | No |
Drilled | Yes |
Location | |
Location | Eromanga Basin |
Coordinates | 27°7′S 142°50′E / 27.117°S 142.833°E |
Country | Australia |
State | Queensland |
District | South West |
Tookoonooka is a large meteorite impact structure (astrobleme) situated in South West Queensland, Australia. It lies deeply buried within Mesozoic sedimentary rocks of the Eromanga Basin and is not visible at the surface.[1]
Description
Tookoonooka was discovered using
Talundilly impact structure
The seismic data reveal a similar nearby structure of the same age referred to as Talundilly.[3][4][5] Although it seems likely that Tookoonooka and Talundilly are paired impact structures, proof that the latter is of impact origin is not possible without drilling. Another proposed paired impact structures are the larger West and East Warburton Basin structures in the nearby state of South Australia.[6]
See also
References
- ^ "Tookoonooka". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2017-10-09.
- ^ a b c Gorter J.D., Gostin V.A. & Plummer P. 1989. The Tookoonooka Structure: an enigmatic sub-surface feature in the Eromanga Basin, its impact origin and implications for petroleum exploration. In: O’Neil B.J. (editor) The Cooper and Eromanga Basins, Australia: Proceedings of the Cooper and Eromanga Basins Conference, Adelaide, 1989, pp. 441–456. Petroleum Exploration Society of Australia, Society of Petroleum Engineers, Australian Society of Exploration Geophysicists (SA Branches).
- ^ a b c d Gostin V.A. & Therriault A.M. 1997. Tookoonooka, a large buried Early Cretaceous impact structure in the Eromanga Basin of southwestern Queensland, Australia. Meteoritics and Planetary Science 32, 593–599. Abstract and full PDF
- ^ a b c Gorter J.D. 1998. The petroleum potential of Australian Phanerozoic impact structures. APPEA Journal 38, 159–187.
- ^ Longley I.M. 1989. The Talundilly anomaly and its implications for hydrocarbon exploration of Eromanga astroblemes. In: O'Neil B.J. (editor) The Cooper and Eromanga Basins, Australia: Proceedings of the Cooper and Eromanga Basins Conference, Adelaide, 1989, pp. 473–490. Petroleum Exploration Society of Australia, Society of Petroleum Engineers, Australian Society of Exploration Geophysicists (SA Branches)
- ^ World's largest asteroid impact zone found in Australia: Meteorite broke in two, leaving two craters each 200 km across. Mar 24, 2015