Canning Basin

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The Canning Basin is a geological basin located in Western Australia. Deposition of sediments began after early-Ordovician thermal subsidence, and continued into the Early Cretaceous. [1] [2]

Contents

The Basin covers approximately 507,000 km2 of which approximately 430,000 km2 is on land. [1]

It has been recognised as having prospective oil and gas capacity [3] and has been studied extensively; [4] [5] as of June 2003 250 wells have been drilled and 78,000 km of seismic shot. [1]

The basin is also a distinct physiographic province of the larger West Australian Shield division.

The Canning Basin is home to a Devonian fossil reef complex that stretches 350 km across the northern edge of the basin. The fossil reef is very well preserved and is cut by several modern canyons, including Geikie Gorge and Windjana Gorge. [6] The fossil sites associated the ancient reef system that extended for around one thousand kilometres along what is now the northwest of the Australian continent, described as resembling the modern Great Barrier Reef off the coast of Eastern Australia. The sites have produced ancient fossil material in an excellent state of preservation, most notably those revealing details of the structure of skeletons and soft-tissues of early amphibians. One important site is referred to as the "Devonian 'Great Barrier Reef'", and another, the "Gogo fish fossil site" (the Gogo formation), is named for the discovery of the Gogo fish. [7]

The internal features of the basin include:

The Australian Bureau of Mineral Resources report of the geology of the basin outlines the early exploration:

The Bureau started field work in the Canning Basin in 1947 and continued every year up to 1958. This work was carried out by geological parties equipped with land vehicles (1947-56) and with a helicopter (1957), by seismic and gravity parties, by an airborne magnetic party, and by a stratigraphical drilling party (1955-58). All work was based on air photographs, at a scale of 1:50,000, prepared by the R.A.A.F. This bulletin incorporates the results of all these surveys. The first attempt at compiling a geology of the Canning Basin was made by Reeves in 1949 [11]

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References

  1. 1 2 3 Geoscience Australia – Geological summary Archived 11 March 2007(Date mismatch) at the Wayback Machine
  2. ↑ Tyler, Ian M.; Hocking, Roger M.; Haines, Peter W. (1 March 2012). "Geological evolution of the Kimberley region of Western Australia". Episodes Journal of International Geoscience. 35 (1): 298–306. doi: 10.18814/epiiugs/2012/v35i1/029 . S2CID   128921002.
  3. ↑ John Veevers; Wells, A. T. (Allan Thomas); Australia. Bureau of Mineral Resources, Geology and Geophysics (1961), The geology of the Canning Basin, Western Australia, Bureau of Mineral Resources, Geology and Geophysics, retrieved 21 January 2012
  4. ↑ Logan, Brian W; Semeniuk, V. (1976), Dynamic metamorphism : processes and products in Devonian carbonate rocks, Canning Basin, Western Australia, Geological Society of Australia, ISBN   978-0-909869-08-3
  5. ↑ Purcell, Peter G., ed. (1984), The Canning Basin W.A., Perth, W.A.: Geological Society of Australia Inc. and Petroleum Exploration Society of Australia Ltd, ISBN   978-0-909869-37-3
  6. ↑ E., Johnson, Markes; Gregory, Webb (1 September 2017). "Outer Rocky Shores of the Mowanbini Archipelago, Devonian Reef Complex, Canning Basin, Western Australia". Journal of Geology. 115 (5): 583–600. Bibcode:2007JG....115..583J. doi:10.1086/519779. S2CID   129190899.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  7. ↑ Australian Heritage Council (2012). Australia's fossil heritage : a catalogue of important Australian fossil sites. CSIRO Publishing. pp. 111–116. ISBN   9780643101777.
  8. ↑ Dörling, Simon L; University of Western Australia. Department of Geology and Geophysics (1995), Structural evolution of the southeast Fitzroy Trough and Lennard Shelf, Western Australia during the Devonian-Early Carboniferous Pillara Tectonic Episode : implications for facies distribution and Mississippi Valley-type Pb-Zn mineralisation , retrieved 3 December 2016
  9. ↑ Koop, W. J; Burdett, J. W; Burdett, J. W. Canning Basin, Kidson Sub-Basin geological map; West Australian Petroleum Pty. Ltd (1964), Geological survey of the Kidson sub-basin, Canning basin, Western Australia, West Australian Petroleum Pty. Ltd.?], retrieved 3 December 2016{{citation}}: CS1 maint: multiple names: authors list (link)
  10. ↑ these and other features are identified at the map - http://www.ga.gov.au/scientific-topics/energy/province-sedimentary-basin-geology/petroleum/onshore-australia/canning-basin#heading-1
  11. ↑ The geology of the Canning Basin, Western Australia, Geoscience Australia, retrieved 3 December 2016[ permanent dead link ]

Further reading

18°11′15″S124°18′37″E / 18.18750°S 124.31028°E / -18.18750; 124.31028


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