|
List Of Impact Structures In Australia
This list includes all List of impact structures on Earth#All craters listed alphabetically, 27 confirmed impact structures in Australia as listed in the Earth Impact Database.Bevan, Alex. and Ken McNamara (2009) ''Australia's meteorite craters'' Welshpool, W. A. : Western Australian Museum, 2nd ed. (pbk.) and other sources provide a contrast in methodology and limitations to the information in the EID Impact structures - confirmed Unconfirmed impact structures The following structures are officially considered "unconfirmed" because they are not listed in the Earth Impact Database. Due to stringent requirements regarding evidence and peer-reviewed publication, newly discovered craters or those with difficulty collecting evidence generally are known for some time before becoming listed. However, entries on the unconfirmed list could still have an impact origin disproven. See also * Impact craters * Impact events * Bolides and Meteorites * Earth Impact Database – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Impact Structures On Earth
This list of impact structures (including impact craters) on Earth contains the majority of the 194+ confirmed impact structures given in the Earth Impact Database as of 2024. Alphabetical lists for different continents can be found under #Impact structures by continent, Impact structures by continent below. Unconfirmed structures can be found at List of possible impact structures on Earth. Confirmed impact structures listed by size and age These features were caused by the collision of meteors (consisting of large fragments of asteroids) or comets (consisting of ice, dust particles and rocky fragments) with the Earth. For eroded or buried craters, the stated diameter typically refers to the best available estimate of the original rim (craters), rim diameter, and may not correspond to present surface features. Time units are either in Year#SI prefix multipliers, ka (thousands) or Year#SI prefix multipliers, Ma (millions) of years. 10 ka or less Less than ten thousand years ol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Australia
Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a land area of , and is also the List of country subdivisions by area, second-largest subdivision of any country on Earth. Western Australia has a diverse range of climates, including tropical conditions in the Kimberley (Western Australia), Kimberley, deserts in the interior (including the Great Sandy Desert, Little Sandy Desert, Gibson Desert, and Great Victoria Desert) and a Mediterranean climate on the south-west and southern coastal areas. the state has 2.965 million inhabitants—10.9 percent of the national total. Over 90 percent of the state's population live in the South-West Land Division, south-west corner and around 80 percent live in the state capital Perth, leaving the remainder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liverpool Crater
Liverpool is a meteorite impact crater situated in Arnhem Land within the Northern Territory, Australia. It was named after the nearby Liverpool River. Liverpool is remote and difficult to access. The crater has a raised, near-circular rim averaging about 1.6 km in diameter. It was first noticed by geologists during reconnaissance geological mapping in the 1960s, and although an impact origin was considered possible, this was not confirmed until a more detailed study was undertaken in 1970. Description The crater lies within flat-lying Paleoproterozoic sandstone of the McArthur Basin. This sandstone has been fractured and brecciated by the impact event to form the rim. Flat-lying and non-deformed sandstone that must have been deposited after the impact event is exposed within the crater's center. Because the crater is quite well preserved, it can be argued that it was buried by younger sedimentary rock soon after the impact event; this younger rock has now been mostly erode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queensland
Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south, respectively. To the east, Queensland is bordered by the Coral Sea and the Pacific Ocean; to the state's north is the Torres Strait, separating the Australian mainland from Papua New Guinea, and the Gulf of Carpentaria to the north-west. With an area of , Queensland is the world's List of country subdivisions by area, sixth-largest subnational entity; it List of countries and dependencies by area, is larger than all but 16 countries. Due to its size, Queensland's geographical features and climates are diverse, and include tropical rainforests, rivers, coral reefs, mountain ranges and white sandy beaches in its Tropical climate, tropical and Humid subtropical climate, sub-tropical c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lawn Hill Crater
Lawn Hill ‘crater’ refers to an Ordovician impact structure, the eroded remnant of a former impact crater, situated approximately 220 km north-north-west of Mount Isa in northwestern Queensland, Australia. The site is marked by an 18 km diameter ring of dolomite hills. The origin of this circular feature was uncertain until the discovery of shatter cones and shocked quartz from uplifted rocks at the centre was reported in 1987. Description The site is eroded and it has been suggested that the original crater was slightly larger, at around 20 km diameter. In the past it has been debated whether the limestones, which are of Middle Cambrian age (ca. 510 Ma) based on comparisons with nearby outcrops of marine limestone in the Georgina Basin, were simply deposited in the crater after its formation, or were actually deformed by the impact event. Those differing points of view suggest that the crater may be of earlier Cambrian or Proterozoic age, or it could be of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kelly West Crater
Kelly West is a deeply eroded impact crater situated in the central Northern Territory, Australia. It was discovered during Government geological mapping and first reported in 1973, the evidence for impact coming principally from an abundance of shatter cones at the site. Description The surface expression of Kelly West comprises a circular hill of Palaeoproterozoic quartzite about in diameter, interpreted as a central uplift of a larger complex impact crater. Recent geophysical interpretation suggests an original crater diameter of , less than earlier estimates of about . The age is poorly constrained, but must be older than Middle Cambrian because sedimentary rocks of this age overlie the central uplift and were not deformed by the impact event. See also *List of impact craters in Australia A list is a set of discrete items of information collected and set forth in some format for utility, entertainment, or other purposes. A list may be memorialized in any number of w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henbury Crater
Henbury may refer to: Places in Australia *Henbury Meteorites Conservation Reserve, Northern Territory; contains the Henbury craters field *Henbury Station, Northern Territory *Henbury School, a school for disabled children in Darwin; refer List of schools in the Northern Territory#Other state schools Places in England *Henbury, Bristol, a district of Bristol, formerly a village in Gloucestershire ** Henbury School, former name of Blaise High School **Henbury railway station ** Henbury Hundred, a hundred of Gloucestershire *Henbury, Cheshire, a village and civil parish ** Henbury High School *Henbury, Dorset Henbury is a hamlet (place), hamlet in the civil parish of Sturminster Marshall in Dorset, England. It lies on the A31 road. Henbury House is a classical Georgian architecture, Georgian house built in 1770. In the 19th century the estate was ..., a hamlet Places on Mars * Henbury (crater) {{geodis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goyder Crater
Goyder is an impact structure (or astrobleme), the eroded remnant of a former impact crater. It is situated in Arnhem Land in the Northern Territory, Australia, and was named after the nearby Goyder River. The impact occurred into Mesoproterozoic sedimentary rocks of the McArthur Basin. The deformed area is exposed at the surface and marked by a 3 km diameter ring of fractured and faulted sandstone, which is interpreted as the eroded relic of a central uplift (material that rebounded within the crater to once form a central peak); the original crater rim, long since removed by erosion, being estimated at approximately 9–12 km diameter. Evidence for an impact origin includes the presence of shatter cones and shocked quartz in outcrops of deformed sandstone at the center of the site. Age The time of impact cannot be accurately constrained, however, it probably happened more recently than 1325 Ma (middle Mesoproterozoic), which is the age of igneous rocks that are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gosses Bluff Crater
Gosses Bluff (or Gosse's Bluff) is thought to be the eroded remnant of an impact crater. Known as Tnorala to the Western Arrernte people of the surrounding region, it is located in the southern Northern Territory, near the centre of Australia, about west of Alice Springs and about to the north-east of Uluru (Ayers Rock). It was named by Ernest Giles in 1872 after Australian explorer William Gosse's brother Henry, who was a member of William's expedition. Formation The original crater is thought to have been formed by the impact of an asteroid or comet approximately 142.5 ± 0.8 million years ago, in the earliest Cretaceous, very close to the Jurassic–Cretaceous boundary. The original crater rim has been estimated at in diameter, but this has been eroded away. The , crater-like feature, now exposed, is interpreted as the eroded relic of the crater's central uplift. The impact origin of this topographic feature was first proposed in the 1960s, the strongest evidence co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goat Paddock Crater
Goat Paddock is a 5 km-diameter near-circular bowl-shaped depression in a range of gently dipping Proterozoic sandstone in the Kimberley Region of northern Western Australia, 106 km west-southwest of Halls Creek. It is interpreted as an ancient meteorite impact crater, the evidence including breccia containing melted rocks, silica glass, shatter cones and shocked quartz.Harms J.E., Milton D.J., Ferguson J., Gilbert D.J., Harris W.K. & Goleby B. 1980. Goat Paddock cryptoexplosion crater, Western Australia. Nature 286, 704–706Abstract/ref>Milton D.J. & Macdonald F.A. 2005. Goat Paddock, Western Australia: an impact crater near the simple – complex transition. Australian Journal of Earth Sciences 52, 691–698Abstract/ref> Drilling shows that the crater is filled with about 200 m of ancient lake sediments containing Early Eocene pollen, this age thus giving a minimum estimate for the age of the crater itself. The crater is not perfectly circular, but slightly elongate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glikson Crater
Glikson crater is an impact structure (or astrobleme), the eroded remnant of a former impact crater, situated in the Little Sandy Desert of central Western Australia. A possible impact structure was first reported in 1997, and named after Australian geologist A. Y. Glikson, attention to the site being drawn by the presence of a prominent 14 km diameter ring-shaped aeromagnetic anomaly.Conference abstract The area within the ring contains sparse outcrop of uplifted and deformed , but is largely covered by sand dunes. The recent discovery of |
Foelsche Crater
Foelsche is a partly buried impact structure (or astrobleme), the eroded remnant of a former impact crater. It is situated about 85 km southeast of Borroloola in the Northern Territory, Australia, and named after the nearby Foelsche River. Although little of it is exposed at the surface, and no crater shaped topography is evident, the circular nature of the feature is obvious on aeromagnetic images, a factor that led to its discovery. Description The impact occurred into flat-lying Mesoproterozoic sedimentary rocks of the McArthur Basin and most of the crater is covered by a semi-circular hill of flat-lying Neoproterozoic sedimentary rock. The only exposure of the crater itself are scattered outcrops of deformed sandstone and breccia around the northern edge of the overlying hill, which are inferred to be remnants of the crater rim. The rim is about 6 km in diameter. Evidence indicating an impact origin for the feature includes an abundance of shocked quartz grain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
