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Cadomin Cave
Cadomin Cave is a natural limestone cave in the Canadian Rockies near the town of Cadomin, Alberta. Geography Cadomin Cave is located within Leyland Mountain at an elevation of 1890m, and was formed within the thickly-bedded limestones of the Palliser Formation. The cave consists of an upper series of spacious phreatic and keyhole-type passages underlain by somewhat smaller passages connected by tight crawlways. There is only one known entrance. Cadomin Cave is named after the town of Cadomin, an acronym for the Canada Dominion Mining company. Exploration Cadomin Cave has been known since the early 1900s when prospectors opened up the Coal Branch district, but it was almost certainly known to native peoples before then. The first cave survey was conducted in 1959 prior to the formation of Canada's caving clubs, and produced an accurate map of the passages of the upper series as far as the Mess Hall, the cave's principal chamber. In 1977 and 1978 a long-rumored lower series of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cave
A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea caves, rock shelters, and grottos, that extend a relatively short distance into the rock and they are called ''exogene'' caves. Caves which extend further underground than the opening is wide are called ''endogene'' caves. Speleology is the science of exploration and study of all aspects of caves and the cave environment. Visiting or exploring caves for recreation may be called ''caving'', ''potholing'', or ''spelunking''. Formation types The formation and development of caves is known as '' speleogenesis''; it can occur over the course of millions of years. Caves can range widely in size, and are formed by various geological processes. These may involve a combination of chemical processes, erosion by water, tectonic forces, microorgan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canadian Rockies
The Canadian Rockies (french: Rocheuses canadiennes) or Canadian Rocky Mountains, comprising both the Alberta Rockies and the British Columbian Rockies, is the Canadian segment of the North American Rocky Mountains. It is the easternmost part of the Canadian Cordillera, which is the northern segment of the North American Cordillera, the expansive system of interconnected mountain ranges between the Interior Plains and the Pacific Coast that runs northwest–southeast from central Alaska to the Isthmus of Tehuantepec in Mexico. Canada officially defines the Rocky Mountains system as the mountain chains east of the Rocky Mountain Trench extending from the Liard River valley in northern British Columbia to the Albuquerque Basin in New Mexico, not including the Mackenzie, Richardson and British Mountains/ Brooks Range in Yukon and Alaska (which are all included as the "Arctic Rockies" in the United States' definition of the Rocky Mountains system). The Canadian Rockies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cadomin, Alberta
Cadomin is a hamlet in the west-central Alberta, Canada within Yellowhead County. It is located along the McLeod River in the foothills of the Rocky Mountains, approximately south of Hinton near the Bighorn Highway. It is served by a spur of the Canadian National Railway. Statistics Canada recognizes Cadomin as a designated place. It is located in Census Division No. 14 and in the riding of Yellowhead. It is administered by Yellowhead County. History Cadomin's name is an acronym for 'Canadian Dominion Mining', and the community gives its name to the Cadomin Formation, which forms a nearby prominent outcrop. Cadomin is one of many communities in the Alberta Coal Branch area that thrived from the 1920s to the 1950s. During the early 1930s, Cadomin's population peaked at 1,800. Other Coal Branch communities included Mountain Park, Luscar, Mercoal, and farther to the east, Robb, Embarras, Coalspur, Coal Valley, Lovett, and Foothills. ;Mining The Cadomin Coal Company ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palliser Formation
The Palliser Formation is a stratigraphic unit of Late Devonian (Famennian) age in the Western Canada Sedimentary Basin. It is a thick sequence of limestone and dolomitic limestone that is present in the Canadian Rockies and foothills of western Alberta. Tall cliffs formed of the Palliser Formation can be seen throughout Banff and Jasper National Parks. The formation was named for the Palliser Range in Banff National Park (which in turn took its name from John Palliser, the leader of the 1850s Palliser Expedition), by H.H. Beach in 1943.Beach, H.H., 1943. Moose Mountain and Morley map-areas, Alberta; Geological Survey of Canada, Memoir 236, 74 p. The type locality was defined in 1994 in the "Devil's Gap" section south of Mount Costigan of the Palliser Range, north of Lake Minnewanka.Meijer Drees, N.C. and Johnston, D.I. 1994. Type Section and conodont biostratigraphy of the Upper Devonian Palliser Formation, southwestern Alberta. Bulletin of Canadian Petroleum Geology. 42:1. P 55 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phreatic
''Phreatic'' is a term used in hydrology to refer to aquifers, in speleology to refer to cave passages, and in volcanology to refer to a type of volcanic eruption. Hydrology The term phreatic (the word originates from the Greek , meaning "well" or "spring") is used in hydrology and the earth sciences to refer to matters relating to ground water (an aquifer) below the water table. The term 'phreatic surface' indicates the location where the pore water pressure is under atmospheric conditions (i.e. the pressure head is zero). This surface normally coincides with the water table. The slope of the phreatic surface is assumed to indicate the direction of ground water movement in an unconfined aquifer. The phreatic zone, below the phreatic surface where rock and soil is saturated with water, is the counterpart of the vadose zone, or unsaturated zone, above. Unconfined aquifers are also referred to as phreatic aquifers because their upper boundary is provided by the phreatic surf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cave Survey
A cave survey is a map of all or part of a cave system, which may be produced to meet differing standards of accuracy depending on the cave conditions and equipment available underground. Cave surveying and cartography, i.e. the creation of an accurate, detailed map, is one of the most common technical activities undertaken within a cave and is a fundamental part of speleology. Surveys can be used to compare caves to each other by length, depth and volume, may reveal clues on speleogenesis, provide a spatial reference for other areas of scientific study and assist visitors with route-finding. Traditionally, cave surveys are produced in two-dimensional form due to the confines of print, but given the three-dimensional environment inside a cave, modern techniques using computer aided design are increasingly used to allow a more realistic representation of a cave system. History The first known plan of a cave dates from 1546, and was of a man-made cavern in tufa called the Stufe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Brown Bat
The little brown bat or little brown myotis (''Myotis lucifugus'') is an endangered species of mouse-eared microbat found in North America. It has a small body size and glossy brown fur. It is similar in appearance to several other mouse-eared bats, including the Indiana bat, northern long-eared bat, and Arizona myotis, to which it is closely related. Despite its name, the little brown bat is not closely related to the big brown bat, which belongs to a different genus. Its mating system is polygynandrous, or promiscuous, and females give birth to one offspring annually. The offspring, called pups, are quickly weaned and reach adult size in some dimensions by three weeks old. The little brown bat has a mean lifespan of 6.5 years, though one individual in the wild reached 34 years old. It is nocturnal, foraging for its insect prey at night and roosting in hollow trees or buildings during the day, among less common roost types. It navigates and locates prey with echolocation. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Nose Syndrome
White-nose syndrome (WNS) is a fungal disease in North American bats which has resulted in the dramatic decrease of the bat population in the United States and Canada, reportedly killing millions as of 2018. The condition is named for a distinctive fungal growth around the muzzles and on the wings of hibernating bats. It was first identified from a February 2006 photo taken in a cave located in Schoharie County, New York. The syndrome has rapidly spread since then. In early 2018, it was identified in 33 U.S. states and seven Canadian provinces; plus the fungus, albeit sans syndrome, had been found in three additional states. Most cases are in the eastern half of both countries, but in March 2016, it was confirmed in a little brown bat in Washington state. In 2019, evidence of the fungus was detected in California for the first time, although no affected bats were found. The disease is caused by the fungus '' Pseudogymnoascus destructans'', which colonizes the bat's skin. No obvi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Canadian Caver
''The Canadian Caver'' is a semiannual publication that documents the activities of Canadian cavers exploring caves within Canada and overseas. ''The Canadian Caver'' was created by members of the McMaster University Climbing and Caving Club from McMaster University in Hamilton, Ontario to document cave explorations throughout North America at a time when Canada's fledgeling caving clubs had no club newsletters. The first issue was produced in December 1969 and included articles on cave exploration in Alberta, Mexico, West Virginia and Georgia, and climbing in the Bugaboos of British Columbia.''The Canadian Caver'' No.1, December 1969 By 1974 caving clubs in western Canada had achieved a level of maturity and stability (aided by the emigration of MUCCC cavers) that allowed the production and editorship of ''The Canadian Caver'' to move to Edmonton, Alberta, where it remained for several years. In 1978 cavers from Vancouver Island produced an issue, which introduced the concept ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caves Of Alberta
A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea caves, rock shelters, and grottos, that extend a relatively short distance into the rock and they are called ''exogene'' caves. Caves which extend further underground than the opening is wide are called ''endogene'' caves. Speleology is the science of exploration and study of all aspects of caves and the cave environment. Visiting or exploring caves for recreation may be called ''caving'', ''potholing'', or ''spelunking''. Formation types The formation and development of caves is known as ''speleogenesis''; it can occur over the course of millions of years. Caves can range widely in size, and are formed by various geological processes. These may involve a combination of chemical processes, erosion by water, tectonic forces, microorganism ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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