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Shoestring Glacier
The Shoestring Glacier is a small valley glacier, stretching out from the peak of Mount St. Helens in Skamania county in southwest Washington in the United States. The source of the glacier was an ice and snow field on the summit of the mountain. 75% of the glacier's volume was removed through the 1980 volcanic activity of St. Helens, creating deadly lahars down the mountainside. The glacier has also created a truncated spur on the mountain. References See also *List of glaciers in the United States Glaciers are located in ten states, with the vast majority in Alaska. The southernmost named glacier is the Lilliput Glacier in Tulare County, California, Tulare County, east of the Central Valley (California), Central Valley of California. Apa ... * Mount St. Helens Glaciers of Mount St. Helens Gifford Pinchot National Forest Glaciers of Washington (state) {{SkamaniaCountyWA-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valley Glacier
Glacier morphology, or the form a glacier takes, is influenced by temperature, precipitation, topography, and other factors. The goal of glacial morphology is to gain a better understanding of glaciated landscapes and the way they are shaped. Types of glaciers can range from massive ice sheets, such as the Greenland ice sheet, to small cirque glaciers found perched on mountain tops. Glaciers can be grouped into two main categories: * Ice flow is constrained by the underlying bedrock topography * Ice flow is unrestricted by surrounding topography Unconstrained Glaciers Ice sheets and ice caps Ice sheets and ice caps cover the largest areas of land in comparison to other glaciers, and their ice is unconstrained by the underlying topography. They are the largest glacial ice formations and hold the vast majority of the world's fresh water. Ice sheets Ice sheets are the largest form of glacial formation. They are continent-sized ice masses that span areas over . They are dome ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount St
Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, Cornwall, England People * Mount (surname) * William L. Mounts (1862–1929), American lawyer and politician Computing and software * Mount (computing), the process of making a file system accessible * Mount (Unix), the utility in Unix-like operating systems which mounts file systems Books * '' Mount!'', a 2016 novel by Jilly Cooper Displays and equipment * Mount, a fixed point for attaching equipment, such as a hardpoint on an airframe * Mounting board, in picture framing * Mount, a hanging scroll for mounting paintings * Mount, to display an item on a heavy backing such as foamcore, e.g.: ** To pin a biological specimen, on a heavy backing in a stretched stable position for ease of dissection or display ** To prepare dead ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington (U
Washington most commonly refers to: * George Washington (1732–1799), the first president of the United States * Washington (state), a state in the Pacific Northwest of the United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered on Washington, D.C. Washington may also refer to: Places England * Washington Old Hall, ancestral home of the family of George Washington * Washington, Tyne and Wear, a town in the City of Sunderland metropolitan borough * Washington, West Sussex, a village and civil parish Greenland * Cape Washington, Greenland * Washington Land Philippines * New Washington, Aklan, a municipality *Washington, a barangay in Catarman, Northern Samar *Washington, a barangay in Escalante, Negros Occidental *Washington, a barangay in San Jacinto, Masbate *Washington, a barangay in Surigao City United States * Fort Washington ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1980 Eruption Of Mount St
__NOTOC__ Year 198 (CXCVIII) was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Sergius and Gallus (or, less frequently, year 951 ''Ab urbe condita''). The denomination 198 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire *January 28 **Publius Septimius Geta, son of Septimius Severus, receives the title of Caesar. **Caracalla, son of Septimius Severus, is given the title of Augustus. China *Winter – Battle of Xiapi: The allied armies led by Cao Cao and Liu Bei defeat Lü Bu; afterward Cao Cao has him executed. By topic Religion * Marcus I succeeds Olympianus as Patriarch of Constantinople (until 211). Births * Lu Kai, Chinese official and general (d. 269) * Quan Cong, Chinese general and advisor (d. 249) Deaths * Li Jue, Chinese warlord and reg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lahars
A lahar (, from ) is a violent type of mudflow or debris flow composed of a slurry of pyroclastic material, rocky debris and water. The material flows down from a volcano, typically along a river valley. Lahars are often extremely destructive and deadly; they can flow tens of metres per second, they have been known to be up to deep, and large flows tend to destroy any structures in their path. Notable lahars include those at Mount Pinatubo in the Philippines and Nevado del Ruiz in Colombia, the latter of which killed more than 20,000 people in the Armero tragedy. Etymology The word ''lahar'' is of Javanese origin. Berend George Escher introduced it as a geological term in 1922. Description The word ''lahar'' is a general term for a flowing mixture of water and pyroclastic debris. It does not refer to a particular rheology or sediment concentration. Lahars can occur as normal stream flows (sediment concentration of less than 30%), hyper-concentrated stream flows (sediment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Truncated Spur
A truncated spur is a spur, which is a ridge that descends towards a valley floor or coastline from a higher elevation, that ends in an inverted-V face and was produced by the erosional truncation of the spur by the action of either streams, waves, or glaciers. Truncated spurs can be found within mountain ranges, along the walls of river valleys, or along coastlines.Neuendorf, K.K.E., J.P. Mehl, Jr., and J.A. Jackson, eds. (2005) ''Glossary of Geology'' (5th ed.). Alexandria, Virginia, American Geological Institute. 779 pp. Thornbury, W. D., 1954, ''Principles of Geomorphology.'' John Wiley and Sons, Inc. New York. 618 pp. A faceted spur is also a spur that ends in a triangular face, known as a triangular facet, with a broad base and an apex pointing upward. As typically used in geology, the triangular facet is usually a remnant of a fault plane and it and its associated faceted spur are the result of faulting. The term ''faceted spur'' is also applied to inverted-V rock faces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Glaciers In The United States
Glaciers are located in ten states, with the vast majority in Alaska. The southernmost named glacier is the Lilliput Glacier in Tulare County, California, Tulare County, east of the Central Valley (California), Central Valley of California. Apart from Alaska, around 1330 glaciers, 1175 perennial snow fields, and 35 Rock glacier, buried-ice features have been identified. Glaciers of Alaska There are approximately 664 named glaciers in Alaska according to the Geographic Names Information System (GNIS). Glaciers of the Pacific Coast Ranges The Pacific Coast Ranges include glaciers in the three states on the Pacific Coast. Washington There are around 880 glaciers in Washington state, with 186 named according to the Geographic Names Information System (GNIS). However, the 1980 eruption of Mount St. Helens eliminated nine of its eleven named glaciers and only the new glacier known as Crater Glacier has been reestablished since. ; Olympic Mountains ;; Mount Olympus (Washi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaciers Of Mount St
A glacier (; or ) is a persistent body of dense ice, a form of rock, that is constantly moving downhill under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as crevasses and seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land“Glacier, N., Pronunciation.” Oxford English Dictionary, Oxford UP, June 2024, https://doi.org/10.1093/OED/7553486115. Accessed 25 Jan. 2025. and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gifford Pinchot National Forest
Gifford Pinchot National Forest is a National Forest located in southern Washington, managed by the United States Forest Service. With an area of , it extends along the western slopes of Cascade Range from Mount Rainier National Park to the Columbia River. The forest straddles the crest of the South Cascades of Washington State, spread out over broad old-growth forests, high mountain meadows, several glaciers, and numerous volcanic peaks. The forest's highest point is at at the top of Mount Adams, the second-tallest volcano in the state after Rainier. Often found abbreviated GPNF on maps and in texts, it includes the Mount St. Helens National Volcanic Monument, established by Congress in 1982. History Gifford Pinchot National Forest is one of the older national forests in the United States. Included as part of the Mount Rainier Forest Reserve in 1897, were set aside as the Columbia National Forest on July 1, 1908. In 1855, the US government commissioned Washington Te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
