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West Hawk Crater
West Hawk is a meteorite crater in Manitoba, Canada. It is 2.44 km in diameter and the age is estimated to be 351 ± 20 million years ( Mississippian). The crater lies beneath the main central portion of West Hawk Lake West Hawk Lake is a impact crater lake on the Whiteshell River located in the Whiteshell Provincial Park in southeastern Manitoba, Canada. The circular shape of the main body of the lake is due to the submerged West Hawk crater, caused by a mete ... in Whiteshell Provincial Park, and is not exposed at the surface. References External linksAerial Exploration of the West Hawk Structure Impact craters of Manitoba Carboniferous impact craters Whiteshell Provincial Park {{Earth-crater-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meteorite
A meteorite is a solid piece of debris from an object, such as a comet, asteroid, or meteoroid, that originates in outer space and survives its passage through the atmosphere to reach the surface of a planet or Natural satellite, moon. When the original object enters the atmosphere, various factors such as friction, pressure, and chemical interactions with the atmospheric gases cause it to heat up and radiate energy. It then becomes a meteor and forms a Meteoroid#Fireball, fireball, also known as a shooting star; astronomers call the brightest examples "Bolide#Astronomy, bolides". Once it settles on the larger body's surface, the meteor becomes a meteorite. Meteorites vary greatly in size. For geologists, a bolide is a meteorite large enough to create an impact crater. Meteorites that are recovered after being observed as they transit the atmosphere and Impact event, impact the Earth are called meteorite falls. All others are known as meteorite finds. Meteorites have traditiona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impact Crater
An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters typically have raised rims and floors that are lower in elevation than the surrounding terrain. Lunar impact craters range from microscopic craters on lunar rocks returned by the Apollo Program and small, simple, bowl-shaped depressions in the lunar regolith to large, complex, multi-ringed impact basins. Meteor Crater is a well-known example of a small impact crater on Earth. Impact craters are the dominant geographic features on many solid Solar System objects including the Moon, Mercury, Callisto, Ganymede and most small moons and asteroids. On other planets and moons that experience more active surface geological processes, such as Earth, Venus, Europa, Io and Titan, visible impact craters are less common because they become eroded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manitoba
Manitoba ( ) is a Provinces and territories of Canada, province of Canada at the Centre of Canada, longitudinal centre of the country. It is Canada's Population of Canada by province and territory, fifth-most populous province, with a population of 1,342,153 as of 2021, of widely varied landscape, from arctic tundra and the Hudson Bay coastline in the Northern Region, Manitoba, north to dense Boreal forest of Canada, boreal forest, large freshwater List of lakes of Manitoba, lakes, and prairie grassland in the central and Southern Manitoba, southern regions. Indigenous peoples in Canada, Indigenous peoples have inhabited what is now Manitoba for thousands of years. In the early 17th century, British and French North American fur trade, fur traders began arriving in the area and establishing settlements. The Kingdom of England secured control of the region in 1673 and created a territory named Rupert's Land, which was placed under the administration of the Hudson's Bay Company. Rupe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mississippian Age
The Mississippian ( , also known as Lower Carboniferous or Early Carboniferous) is a subperiod in the geologic timescale or a subsystem of the geologic record. It is the earlier of two subperiods of the Carboniferous period lasting from roughly 358.9 to 323.2 million years ago. As with most other geochronologic units, the rock beds that define the Mississippian are well identified, but the exact start and end dates are uncertain by a few million years. The Mississippian is so named because rocks with this age are exposed in the Mississippi Valley. The Mississippian was a period of marine transgression in the Northern Hemisphere: the sea level was so high that only the Fennoscandian Shield and the Laurentian Shield were dry land. The cratons were surrounded by extensive delta systems and lagoons, and carbonate sedimentation on the surrounding continental platforms, covered by shallow seas. In North America, where the interval consists primarily of marine limestones, it is treate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Hawk Lake
West Hawk Lake is a impact crater lake on the Whiteshell River located in the Whiteshell Provincial Park in southeastern Manitoba, Canada. The circular shape of the main body of the lake is due to the submerged West Hawk crater, caused by a meteor impact into an ancient rock bed composed of mostly granite. At , it is the deepest lake in Manitoba. Granite cliffs surround parts of the lake. This area is also known as part of the Canadian Shield that was formed billions of years ago. Parts of the Whiteshell park have elaborate petroforms that were made by First Nation peoples, possibly over a thousand years ago. There are petroform shapes of turtles, snakes, humans and geometrical patterns, often found upon pink granite ridges that were shaped during the last ice age. A marine glacial relict, the Deepwater sculpin is found in West Hawk Lake. The lake has private cottages, public beaches, campgrounds and other tourism amenities, and extensive undeveloped shoreline, and is popul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whiteshell Provincial Park
Whiteshell Provincial Park is a provincial park in southeast Manitoba, approximately east of the city of Winnipeg. The park is considered to be a Class II protected area under the IUCN protected area management categories. It is in size. The park protects areas representative of the Lake of the Woods Ecoregion within the Boreal Shield ecozone. The park's protection also specifically extends to the Tie Creek basin, an area of great spiritual significance to Indigenous peoples. History Whiteshell Provincial Park was designated a provincial park by the Government of Manitoba in 1961. It was one of the first group of parks established the year following the passage of the Manitoba Provincial Parks Act. Tourism interest in the area had begun shortly after the arrival of railway lines—the Canadian Pacific Railway in 1883 and the Canadian Northern Railway around 1908. In 1927, the area was suggested as the location for Manitoba's first national park, eventually losing o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impact Craters Of Manitoba
Impact may refer to: * Impact (mechanics), a high force or shock (mechanics) over a short time period * Impact, Texas, a town in Taylor County, Texas, US Science and technology * Impact crater, a meteor crater caused by an impact event * Impact event, the collision of a meteoroid, asteroid or comet with Earth * Impact factor, a measure of the citations to a science or social science journal Books and magazines * ''Impact'' (novel), a 2010 novel by Douglas Preston *''Impact Press'', a former Orlando, Florida-based magazine * Impact Magazines, a former UK magazine publisher * ''Impact'' (conservative magazine), a British political magazine * ''Impact'' (British magazine), a British action film magazine * ''Impact'', a French action film magazine spun off from ''Mad Movies'' * ''Impact'' (UNESCO magazine), a former UNESCO quarterly titled ''IMPACT of science on society'' * ''Impact'' (student magazine), a student magazine for the University of Nottingham, England * ''Bathimp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carboniferous Impact Craters
The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago (Mya), to the beginning of the Permian Period, million years ago. The name ''Carboniferous'' means "coal-bearing", from the Latin '' carbō'' ("coal") and '' ferō'' ("bear, carry"), and refers to the many coal beds formed globally during that time. The first of the modern 'system' names, it was coined by geologists William Conybeare and William Phillips in 1822, based on a study of the British rock succession. The Carboniferous is often treated in North America as two geological periods, the earlier Mississippian and the later Pennsylvanian. Terrestrial animal life was well established by the Carboniferous Period. Tetrapods (four limbed vertebrates), which had originated from lobe-finned fish during the preceding Devonian, became pentadactylous in and diversified during the Carboniferous, including early amphibian lineages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
