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Angeline Lake
Angeline Lake is a freshwater lake located on the northern slope of Iron Cap Mountain between Otter Lake, Azure Lake and Big Heart Lake, in King County, Washington. Self-issued Alpine Lake Wilderness permit required for transit within the Big Snow Mountain area. West Fork Foss River exits Angeline Lake into a canyon that produces Angeline Falls downstream from Chetwoot Lake to Delta Lake. Because Angeline Lake is at the heart of the Alpine Lakes Wilderness, the lake is a popular area for hiking, swimming, and fishing golden trout, rainbow trout, and cutthroat trout. Outlet Angeline Lake has a low watershed to surface area ratio with low flushing rates. The lake has a subterranean outlet. The top land of the outlet channel is blocked by a large landslide. As a consequence, the water exiting the lake percolates in through the landslide and emerges about 1,000 feet downstream from the lake. At this surfacing point, the stream cascades steeply down the hillside over cliffs that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King County, Washington
King County is located in the U.S. state of Washington (state), Washington. The population was 2,269,675 in the 2020 United States census, 2020 census, making it the most populous county in Washington, and the List of the most populous counties in the United States, 13th-most populous in the United States. The county seat is Seattle, also the state's most populous city. King County is one of three Washington counties that are included in the Seattle–Tacoma, Washington, Tacoma–Bellevue, Washington, Bellevue Seattle metropolitan area, metropolitan statistical area. (The others are Snohomish County, Washington, Snohomish County to the north, and Pierce County, Washington, Pierce County to the south.) About two-thirds of King County's population lives in Seattle's suburbs. History When Europeans arrived in the region that would become King County, it was inhabited by several Coast Salish groups. Villages around the site that would become Seattle were primarily populated by the D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bench (geology)
In geomorphology, geography and geology, a bench or benchland is a long, relatively narrow strip of relatively level or gently inclined land that is bounded by distinctly steeper slopes above and below it. Benches can be of different origins and created by very different geomorphic processes.Jackson, J.A., 1997, ''Glossary of Geology.'' American Geological Institute. Alexandria, Virginia. First, the differential erosion of rocks or sediments of varying hardness and resistance to erosion can create benches. Earth scientists called such benches "structural benches." Second, other benches are narrow fluvial terraces created by the abandonment of a floodplain A floodplain or flood plain or bottomlands is an area of land adjacent to a river which stretches from the banks of its channel to the base of the enclosing valley walls, and which experiences flooding during periods of high discharge.Goudi ... by a river or stream and entrenchment of the river valley into it. Finally, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Heart Lake
Little is a synonym for small size and may refer to: Arts and entertainment *Little (album), ''Little'' (album), 1990 debut album of Vic Chesnutt *Little (film), ''Little'' (film), 2019 American comedy film *The Littles, a series of children's novels by American author John Peterson **The Littles (TV series), ''The Littles'' (TV series), an American animated series based on the novels Places *Little, Kentucky, United States *Little, West Virginia, United States Other uses *Clan Little, a Scottish clan *Little (surname), an English surname *Little (automobile), an American automobile manufactured from 1912 to 1915 *Little, Brown and Company, an American publishing company *USS Little, USS ''Little'', multiple United States Navy ships See also * * *Little Mountain (other) *Little River (other) *Little Island (other) {{disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Malachite
A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger oceans, they do form part of the Earth's water cycle. Lakes are distinct from lagoons, which are generally coastal parts of the ocean. Lakes are typically larger and deeper than ponds, which also lie on land, though there are no official or scientific definitions. Lakes can be contrasted with rivers or streams, which usually flow in a channel on land. Most lakes are fed and drained by rivers and streams. Natural lakes are generally found in mountainous areas, rift zones, and areas with ongoing glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers, where a river channel has widened into a basin. Some parts of the world have many lakes formed by the chaotic drainage patterns left over from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trout Lake (Silver Eagle Peak, Washington)
Trout Lake may refer to: Canada * Trout Lake, Alberta, an unincorporated community :* Trout Lake Aerodrome, an aerodrome near Trout Lake, Alberta * Trout Lake (British Columbia), a lake in the West Kootenay region ** Trout Lake, British Columbia, a rural community and ghost town * Sambaa K'e (lake), formerly Trout Lake, a lake in the Northwest Territories ** Sambaa K'e, formerly Trout Lake, the community on this lake ** Trout Lake Water Aerodrome, an aerodrome near Trout Lake / Sambaa K'e in Northwest Territories * Trout Lake (Vancouver), British Columbia *Trout Lake (Annapolis County, Nova Scotia) * Trout Lake (Halifax Regional Municipality, Nova Scotia) * Trout Lake (Ontario), bordering North Bay United States * Trout Lake (Colorado) near Telluride * Trout Lake (Florida) on the border of Polk and Highlands Counties * Trout Lake (Flathead County, Montana) * Trout Lake in Ravalli County, Montana * Trout Lake in Sweet Grass County, Montana * Trout Lake (Arietta, Hamilton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemiboreal
Hemiboreal means halfway between the temperate and subarctic (or boreal) zones. The term is most frequently used in the context of climates and ecosystems. Botany A hemiboreal forest has some characteristics of a boreal forest to the north, and also shares features with temperate-zone forests to the south. Coniferous trees predominate in the hemiboreal zone, but a significant number of deciduous species, such as aspens, oaks, maples, ash trees, birches, beeches, hazels, and hornbeams, also take root here. Climate The term sometimes denotes the form of climate characteristic of the zone of hemiboreal forests—specifically, the climates designated ''Dfb'', ''Dwb'' and ''Dsb'' in the Köppen climate classification scheme. On occasion, it is applied to all areas that have long, cold winters and warm (but not hot) summers—which also including areas that are semiarid(BS) and arid(BW) based on average annual precipitation. It can also be applied to some areas with a subp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lopingian
The Lopingian is the uppermost series/last epoch of the Permian. It is the last epoch of the Paleozoic. The Lopingian was preceded by the Guadalupian and followed by the Early Triassic. The Lopingian is often synonymous with the informal terms late Permian or upper Permian. The name was introduced by Amadeus William Grabau in 1931 and derives from Leping, Jiangxi in China. It consists of two stages/ages. The earlier is the Wuchiapingian and the later is the Changhsingian. The International Chronostratigraphic Chart (v2018/07) provides a numerical age of 259.1 ±0.5 Ma. If a Global Boundary Stratotype Section and Point (GSSP) has been approved, the lower boundary of the earliest stage determines numerical age of an epoch. The GSSP for the Wuchiapingian has a numerical age of 259.8 ± 0.4 Ma. Evidence from Milankovitch cycles suggests that the length of an Earth day during this epoch was approximately 22 hours. The Lopingian ended with the Permian–Triassic extinctio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greensand
Greensand or green sand is a sand or sandstone which has a greenish color. This term is specifically applied to shallow marine sediment that contains noticeable quantities of rounded greenish grains. These grains are called ''glauconies'' and consist of a mixture of mixed-layer clay minerals, such as smectite and glauconite. Greensand is also loosely applied to any glauconitic sediment. Formation Greensand forms in anoxic marine environments that are rich in organic detritus and low in sedimentary input. Having accumulated in marine environments, greensands can be fossil-rich, such as in the late-Cretaceous deposits of New Jersey. Occurrence Important exposures are known from both northern and western Europe, North America, southeastern Brazil and north Africa. Well known and important greensands are the Upper and Lower Greensands of England and occur within Eocene and Cretaceous sedimentary strata underlying the coastal plains of New Jersey and Delaware. Although greensand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological Formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness (geology), thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrite
The mineral pyrite (), or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula Fe S2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral. Pyrite's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of ''fool's gold''. The color has also led to the nicknames ''brass'', ''brazzle'', and ''Brazil'', primarily used to refer to pyrite found in coal. The name ''pyrite'' is derived from the Greek (), 'stone or mineral which strikes fire', in turn from (), 'fire'. In ancient Roman times, this name was applied to several types of stone that would create sparks when struck against steel; Pliny the Elder described one of them as being brassy, almost certainly a reference to what we now call pyrite. By Georgius Agricola's time, , the term had become a generic term for all of the sulfide minerals. Pyrite is usually found associated with other sulfides or oxides in quartz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrrhotite
Pyrrhotite is an iron sulfide mineral with the formula Fe(1-x)S (x = 0 to 0.2). It is a nonstoichiometric variant of FeS, the mineral known as troilite. Pyrrhotite is also called magnetic pyrite, because the color is similar to pyrite and it is weakly magnetic. The magnetism decreases as the iron content increases, and troilite is non-magnetic.Vaughan, D. J.; Craig, J. R. "Mineral Chemistry of Metal Sulfides" Cambridge University Press, Cambridge: 1978. . Structure Pyrrhotite exists as a number of polytypes of hexagonal or monoclinic crystal symmetry; several polytypes often occur within the same specimen. Their structure is based on the NiAs unit cell. As such, Fe occupies an octahedral site and the sulfide centers occupy trigonal prismatic sites. Materials with the NiAs structure often are non-stoichiometric because they lack up to 1/8th fraction of the metal ions, creating vacancies. One of such structures is pyrrhotite-4C (Fe7S8). Here "4" indicates that iron vacan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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