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Eon Mountain
Eon Mountain is located on the border of Alberta and British Columbia on the Continental Divide of the Americas, Continental Divide. It is Alberta's 41st-highest peak, and the 53rd-highest peak in British Columbia. It was named in 1901 by James Outram. The first ascent of Eon was made on July 17, 1921, by Winthrop E. Stone, then President of Purdue University, who fell to his death shortly after reaching the summit. Stone had climbed the final chimney and then unroped on the summit. Upon returning to the chimney he stepped on a loose stone near the edge and fell. His wife was stationed at the base of the final chimney at the time. She was able to descend to on the south face and was rescued on July 24. On August 5, a five-man recovery team ascended the SE arête to retrieve Stone's body which was located some below the summit. __NOTOC__ Geology The mountain is composed of sedimentary rock laid down during the Precambrian to Jurassic periods. Formed in shallow seas, this sediment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunette Peak
Lunette Peak is located on the border of Alberta and British Columbia on the SE side of Mount Assiniboine along the Continental Divide of the Americas, Continental Divide. It was named in 1913 by the Interprovincial Boundary Survey. See also * List of peaks on the British Columbia–Alberta border References Three-thousanders of Alberta Three-thousanders of British Columbia Mountains of Banff National Park Canadian Rockies Mount Assiniboine Provincial Park {{EastKootenay-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedimentary Rock
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place. The particles that form a sedimentary rock are called sediment, and may be composed of geological detritus (minerals) or biological detritus (organic matter). The geological detritus originated from weathering and erosion of existing rocks, or from the solidification of molten lava blobs erupted by volcanoes. The geological detritus is transported to the place of deposition by water, wind, ice or mass movement, which are called agents of denudation. Biological detritus was formed by bodies and parts (mainly shells) of dead aquatic organisms, as well as their fecal mass, suspended in water and slowly piling up on the floor of water bodies (marine snow). Sedimentation may also occur as dissolved minerals precipitate from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three-thousanders Of Alberta
Three-thousanders are mountains with a height of between , but less than above sea level. Similar terms are commonly used for mountains of other height brackets e. g. four-thousanders or eight-thousanders. In Britain, the term may refer to mountains above . Climatological significance In temperate latitudes three-thousanders play an important role, because even in summer they lie below the zero degree line for weeks. Thus the chains of three-thousanders always form important climatic divides and support glaciation - in the Alps the contour is roughly the general limit of the "nival step"; only a few glaciated mountains are under (the Dachstein, the easternmost glaciated mountain in the Alps, is, at , not a three-thousander). In the Mediterranean, however, the three-thousanders remain free of ice and, in the tropics, they are almost insignificant from a climatic perspective; here the snow line lies at around to , and in the dry continental areas (Trans-Himalayas, Ande ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Alpine Club
The American Alpine Club (AAC) is a non-profit member organization with more than 24,000 members. Its vision is to create "a united community of competent climbers and healthy climbing landscapes." The Club is housed in the American Mountaineering Center (AMC) in Golden, Colorado. Through its members, the AAC advocates for American climbers domestically and around the world; provides grants and volunteer opportunities to protect and conserve climbing areas; hosts local and national climbing festivals and events; cares for the nation's leading climbing library and mountaineering museum; manages the Hueco Rock Ranch, New River Gorge Campground, and Grand Teton Climbers' Ranch as part of a larger lodging network for climbers; and annually gives about $100,000 toward climbing, conservation, and research grants that fund adventurers who travel the world. It also maintains regional sections—with both regional staff and volunteers—throughout the United States. The AAC publishes two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Peaks On The Alberta–British Columbia Border
This is a list of peaks on the Alberta–British Columbia border, being the spine of the Continental Divide from the Canada–United States border to the 120th meridian, which is where the boundary departs the Continental Divide and goes due north to the 60th parallel. Peaks are listed from north to south and include the four peaks not on the Continental Divide but which are on the 120th Meridian, stretching approximately due north from Intersection Mountain, which as its name implies is located at the intersection of the Divide and the Meridian. See also *List of Boundary Peaks of the Alaska-British Columbia/Yukon border *Extreme points of British Columbia References {{DEFAULTSORT:List Of Peaks On The British Columbia-Alberta Border * * Peaks Peaks Peak or The Peak may refer to: Basic meanings Geology * Mountain peak ** Pyramidal peak, a mountaintop that has been sculpted by erosion to form a point Mathematics * Peak hour or rush hour, in traffic conges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subarctic Climate
The subarctic climate (also called subpolar climate, or boreal climate) is a climate with long, cold (often very cold) winters, and short, warm to cool summers. It is found on large landmasses, often away from the moderating effects of an ocean, generally at latitudes from 50° to 70°N, poleward of the humid continental climates. Subarctic or boreal climates are the source regions for the cold air that affects temperate latitudes to the south in winter. These climates represent Köppen climate classification ''Dfc'', ''Dwc'', ''Dsc'', ''Dfd'', ''Dwd'' and ''Dsd''. Description This type of climate offers some of the most extreme seasonal temperature variations found on the planet: in winter, temperatures can drop to below and in summer, the temperature may exceed . However, the summers are short; no more than three months of the year (but at least one month) must have a 24-hour average temperature of at least to fall into this category of climate, and the coldest month should ave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Köppen Climate Classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notably in 1918 and 1936. Later, the climatologist Rudolf Geiger (1894–1981) introduced some changes to the classification system, which is thus sometimes called the Köppen–Geiger climate classification system. The Köppen climate classification divides climates into five main climate groups, with each group being divided based on seasonal precipitation and temperature patterns. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (temperate), ''D'' (continental), and ''E'' (polar). Each group and subgroup is represented by a letter. All climates are assigned a main group (the first letter). All climates except for those in the ''E'' group are assigned a seasonal precipitation subgroup (the second letter). For example, ''Af'' indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laramide Orogeny
The Laramide orogeny was a time period of mountain building in western North America, which started in the Late Cretaceous, 70 to 80 million years ago, and ended 35 to 55 million years ago. The exact duration and ages of beginning and end of the orogeny are in dispute. The Laramide orogeny occurred in a series of pulses, with quiescent phases intervening. The major feature that was created by this orogeny was deep-seated, thick-skinned deformation, with evidence of this orogeny found from Canada to northern Mexico, with the easternmost extent of the mountain-building represented by the Black Hills of South Dakota. The phenomenon is named for the Laramie Mountains of eastern Wyoming. The Laramide orogeny is sometimes confused with the Sevier orogeny, which partially overlapped in time and space. The orogeny is commonly attributed to events off the west coast of North America, where the Kula Plate, Kula and Farallon Plates were sliding under the North American plate. Most hypothes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The Jurassic constitutes the middle period of the Mesozoic, Mesozoic Era and is named after the Jura Mountains, where limestone strata from the period were first identified. The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic magmatic province, Central Atlantic Magmatic Province. The beginning of the Toarcian Stage started around 183 million years ago and is marked by an extinction event associated with widespread Anoxic event, oceanic anoxia, ocean acidification, and elevated temperatures likely caused by the eruption of the Karoo-Ferrar, Karoo-Ferrar large igneous provinces. The end of the Jurassic, however, has no clear boundary with the Cretaceous and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precambrian
The Precambrian (or Pre-Cambrian, sometimes abbreviated pꞒ, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the Phanerozoic Eon, which is named after Cambria, the Latinised name for Wales, where rocks from this age were first studied. The Precambrian accounts for 88% of the Earth's geologic time. The Precambrian is an informal unit of geologic time, subdivided into three eons ( Hadean, Archean, Proterozoic) of the geologic time scale. It spans from the formation of Earth about 4.6 billion years ago ( Ga) to the beginning of the Cambrian Period, about million years ago ( Ma), when hard-shelled creatures first appeared in abundance. Overview Relatively little is known about the Precambrian, despite it making up roughly seven-eighths of the Earth's history, and what is known has largely been discovered from the 1960s onwards. The Precambrian fossil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arête
An arête ( ) is a narrow ridge of rock which separates two valleys. It is typically formed when two glaciers erode parallel U-shaped valleys. Arêtes can also form when two glacial cirques erode headwards towards one another, although frequently this results in a saddle-shaped pass, called a col. The edge is then sharpened by freeze-thaw weathering, and the slope on either side of the arête steepened through mass wasting Mass wasting, also known as mass movement, is a general term for the movement of rock or soil down slopes under the force of gravity. It differs from other processes of erosion in that the debris transported by mass wasting is not entrained in ... events and the erosion of exposed, unstable rock. The word ''arête'' () is actually French for "edge" or "ridge"; similar features in the Alps are often described with the German language, German equivalent term ''Grat''. Where three or more cirques meet, a pyramidal peak is created. Cleaver A ''cleaver' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Park Ranges
The Park Ranges, also known as the Main Ranges, are a group of mountain ranges in the Canadian Rockies of southeastern British Columbia and southwestern Alberta, Canada. It is one of the three main subranges and the most central of the Continental Ranges, extending from southeast of Mount McGregor to the Fernie Basin. Subranges * Blackwater Range *Blue Range * Bow Range * Chaba Icefield * Clemenceau-Chaba * Columbia Icefield * Drummond Group * Freshfields * Harrison Group * Hooker Icefield *Kitchen Range * Le Grand Brazeau * McKale-Chalco Divide *Mitchell Range * Morkill Ranges *Ottertail Range * Rainbow Range * Royal Group * Selwyn Range *Spray Mountains The Spray Mountains is a mountain range of the Canadian Rockies located in southwestern Alberta Alberta ( ) is one of the thirteen provinces and territories of Canada. It is part of Western Canada and is one of the three prairie provinces. A ... * Sundance Range * The Ramparts * Trident Range * Van Horne Range * Vermilion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
