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- Q1604918 subject Q8375754.
- Q1604918 subject Q8488041.
- Q1604918 subject Q8543088.
- Q1604918 subject Q8735430.
- Q1604918 abstract "Woodleigh is a large meteorite impact crater (astrobleme) in Western Australia, centred on Woodleigh Station east of Shark Bay. A team of four scientists at the Geological Survey of Western Australia and the Australian National University, led by Arthur J. Mory, announced the discovery in the 15 April 2000 issue of Earth and Planetary Science Letters.The crater is not exposed at the surface and therefore its size is uncertain. The original discovery team believe it may be up to 120 km (75 mi) in diameter, but others argue it may be much smaller, with one study suggesting a diameter closer to 60 km (37 mi). The larger estimate of 120 km, if correct, would make this crater tied for the fourth largest confirmed impact structure in the world, and imply a bolide (asteroid or comet) about 5–6 km (3.1–3.7 mi) in diameter. A more recent study suggests the crater could be between 60 to 160 km or more, and was produced by a comet or asteroid 6 to 12 km wide.The central uplift, interpreted to be 20 km (12 mi) in diameter, was first intersected by drilling activities in the late 1970s; however its significance as an impact structure was only realised in 1997 during a gravity survey. In 1999 a new core sample was taken. The thin veins of melted glass, breccia, and shocked quartz found would have formed under pressures 100,000 times greater than atmospheric pressure at sea level, or between 10 and 100 times greater than those generated by volcanic or earthquake activity. Only a large impact could have generated such conditions.The Woodleigh impact event, originally thought to have occurred between the Late Triassic and Late Permian, is now thought to date from 364 ± 8 million years (Late Devonian). This time corresponds approximately to a minor extinction event when around 40% of species disappeared. There is evidence for other large impact events at around the same time, so if the extinction is related to impact, perhaps more than one crater was involved.Of the two dozen or more impact craters known in Australia, the three largest are Woodleigh, Acraman, and Tookoonooka.".
- Q1604918 wikiPageExternalLink 795.aspx.
- Q1604918 wikiPageWikiLink Q1061666.
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- Q1604918 wikiPageWikiLink Q76402.
- Q1604918 wikiPageWikiLink Q791776.
- Q1604918 wikiPageWikiLink Q8375754.
- Q1604918 wikiPageWikiLink Q8488041.
- Q1604918 wikiPageWikiLink Q8543088.
- Q1604918 wikiPageWikiLink Q8735430.
- Q1604918 point "-26.05 114.66666666666667".
- Q1604918 type SpatialThing.
- Q1604918 comment "Woodleigh is a large meteorite impact crater (astrobleme) in Western Australia, centred on Woodleigh Station east of Shark Bay. A team of four scientists at the Geological Survey of Western Australia and the Australian National University, led by Arthur J. Mory, announced the discovery in the 15 April 2000 issue of Earth and Planetary Science Letters.The crater is not exposed at the surface and therefore its size is uncertain.".
- Q1604918 label "Woodleigh crater".
- Q1604918 lat "-26.05".
- Q1604918 long "114.66666666666667".