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Loyalsock Creek
Loyalsock Creek is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed August 8, 2011 tributary of the West Branch Susquehanna River located chiefly in Sullivan and Lycoming counties in Pennsylvania in the United States. As the crow flies, Lycoming County is about northwest of Philadelphia and east-northeast of Pittsburgh. Name The name is a corruption of a word in the language of the local indigenous peoples meaning "middle creek" (the original was something like ''Lawi-sahquick''). This refers to Loyalsock Creek's location between Lycoming Creek and Muncy Creek, with the mouths of each about up- and downstream of the mouth of the Loyalsock. Several important trails used by the local indigenous peoples ran along parts of the Loyalsock or crossed it. Two important villages of the local indigenous peoples were located on its banks, one of which, Ots-ton-wak-in, was the home to Madame Montour and her son Andrew Montour, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hillsgrove Covered Bridge
The Hillsgrove Covered Bridge is a Burr arch truss covered bridge over Loyalsock Creek in Hillsgrove Township, Sullivan County, in the U.S. state of Pennsylvania. It was built c. 1850 and is long. In 1973, it became the first covered bridge in the county to be placed on the National Register of Historic Places (NRHP). The bridge is named for the township and nearby unincorporated village of Hillsgrove, and is also known as Rinkers Covered Bridge for an adjoining farm. Pennsylvania had the first covered bridge in the United States, and has had the most such bridges since the 19th century. They were a transition between stone and metal bridges, with the roof and sides protecting the wooden structure from the weather. The Hillsgrove bridge has load-bearing Burr arches sandwiching multiple vertical king posts on each side, for strength and rigidity. It was built by Sadler Rodgers, who also constructed the nearby Forksville Covered Bridge in the same year, with a similar design. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrew Montour
Andrew Montour ( – 1772), also known as Sattelihu, Eghnisara,Hagedorn, 57 and Henry,Montour was also called Henry, possibly due to the similarity of sound with the French ''"Andre".'' was an important mixed Language interpretation, interpreter and negotiator in the colony of Virginia, Virginia and Province of Pennsylvania, Pennsylvania backcountry in the latter half of the 18th century. He was of Oneida people, Oneida and Algonquin people, Algonquin ancestry, with a French grandfather. Historian James Merrell estimated his birth year as 1720. Likely born in his mother's village of Loyalsock Creek#Village of Otstonwakin, Otstonwakin (near current Montoursville, Pennsylvania), he later led the village in the 18th century before settling further west. Montour was commissioned as a captain in 1754 by Pennsylvania officials during the French and Indian War. He also commanded raiding parties in Ohio in 1764 during Pontiac's War (1763–1766) at the behest of Sir William Johnson, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acid
In computer science, ACID ( atomicity, consistency, isolation, durability) is a set of properties of database transactions intended to guarantee data validity despite errors, power failures, and other mishaps. In the context of databases, a sequence of database operations that satisfies the ACID properties (which can be perceived as a single logical operation on the data) is called a ''transaction''. For example, a transfer of funds from one bank account to another, even involving multiple changes such as debiting one account and crediting another, is a single transaction. In 1983, Andreas Reuter and Theo Härder coined the acronym ''ACID'', building on earlier work by Jim Gray who named atomicity, consistency, and durability, but not isolation, when characterizing the transaction concept. These four properties are the major guarantees of the transaction paradigm, which has influenced many aspects of development in database systems. According to Gray and Reuter, the IBM Informa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neutralization (chemistry)
In chemistry, neutralization or neutralisation (see spelling differences) is a chemical reaction in which acid and a base react quantitatively with each other. In a reaction in water, neutralization results in there being no excess of hydrogen or hydroxide ions present in the solution. The pH of the neutralized solution depends on the acid strength of the reactants. Meaning of "neutralization" In the context of a chemical reaction the term neutralization is used for a reaction between an acid and a base or alkali. Historically, this reaction was represented as :acid + base (alkali) → salt + water For example: :HCl + NaOH → NaCl + H2O The statement is still valid as long as it is understood that in an aqueous solution the substances involved are subject to dissociation, which changes the ionization state of the substances. The arrow sign, →, is used because the reaction is complete, that is, neutralization is a quantitative reaction. A more general definition is base ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years. Vast deposits of coal originate in former wetlands called coal forests that covered much of the Earth's tropical land areas during the late Carboniferous ( Pennsylvanian) and Permian times. Many significant coal deposits are younger than this and originate from the Mesozoic and Cenozoic eras. Coal is used primarily as a fuel. While coal has been known and used for thousands of years, its usage was limited until the Industrial Revolution. With the invention of the steam engine, coal consumption increased. In 2020, coal supplied about a quarter of the world's primary energy and over a third of its electricity. Some iron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conglomerate (geology)
Conglomerate () is a clastic sedimentary rock that is composed of a substantial fraction of rounded to subangular gravel-size clasts. A conglomerate typically contains a matrix of finer-grained sediments, such as sand, silt, or clay, which fills the interstices between the clasts. The clasts and matrix are typically cemented by calcium carbonate, iron oxide, silica, or hardened clay. Conglomerates form by the consolidation and lithification of gravel. They can be found in sedimentary rock sequences of all ages but probably make up less than 1 percent by weight of all sedimentary rocks. In terms of origin and depositional mechanisms, they are closely related to sandstones and exhibit many of the same types of sedimentary structures, e.g., tabular and trough cross-bedding and graded bedding.Boggs, S. (2006) ''Principles of Sedimentology and Stratigraphy.'', 2nd ed. Prentice Hall, New York. 662 pp. Friedman, G.M. (2003) ''Classification of sediments and sedimentary rocks.'' In G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.Blatt, Harvey and Robert J. Tracy (1996) ''Petrology: Igneous, Sedimentary and Metamorphic'', 2nd ed., Freeman, pp. 281–292 Shale is characterized by its tendency to split into thin layers ( laminae) less than one centimeter in thickness. This property is called '' fissility''. Shale is the most common sedimentary rock. The term ''shale'' is sometimes applied more broadly, as essentially a synonym for mudrock, rather than in the more narrow sense of clay-rich fissile mudrock. Texture Shale typically exhibits varying degrees of fissility. Because of the parallel orientation of clay mineral flakes in shale, it breaks into thin layers, often splintery and usually parallel to the otherwise indistinguishable beddin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acid Rain
Acid rain is rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH). Most water, including drinking water, has a neutral pH that exists between 6.5 and 8.5, but acid rain has a pH level lower than this and ranges from 4–5 on average. The more acidic the acid rain is, the lower its pH is. Acid rain can have harmful effects on plants, aquatic animals, and infrastructure. Acid rain is caused by emissions of sulphur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids. Acid rain has been shown to have adverse impacts on forests, freshwaters, soils, microbes, insects and aquatic life-forms. In ecosystems, persistent acid rain reduces tree bark durability, leaving flora more susceptible to environmental stressors such as drought, heat/cold and pest infestation. Acid rain is also capable of detrimenting soil composition by stripping it of nutrients such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forks Township, Sullivan County, Pennsylvania
Forks Township is a township in Sullivan County, Pennsylvania, United States. The population was 372 at the 2020 census. History The Worlds End State Park Family Cabin District was added to the National Register of Historic Places in 1987. Geography According to the United States Census Bureau, the township has a total area of , of which is land and (0.05%) is water. Part of Worlds End State Park, a Pennsylvania state park, are in a gorge along Loyalsock Creek in Forks Township. Forks Township is bordered by Bradford County to the north, Cherry Township to the east, Laporte Township to the southeast, Shrewsbury Township to the south and Hillsgrove and Elkland Townships to the west. Forks Township forms the northern, eastern and southern borders of the borough of Forksville. Demographics As of the census of 2000, there were 407 people, 171 households, and 122 families residing in the township. The population density was 9.3 people per square mile (3.6/km2). T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forksville, Pennsylvania
Forksville is a List of municipalities in Sullivan County, Pennsylvania, borough in Sullivan County, Pennsylvania, United States. The population was 110 at the 2020 census. It is the home of the 150-year-old Forksville General Store, down the road from the Sullivan County Fairgrounds, and near Worlds End State Park. The name comes from the confluence of Little Loyalsock Creek and Loyalsock Creek within the borough. History The Forksville Covered Bridge was added to the National Register of Historic Places in 1980. Forksville was first permanently settled by William Molyneaux, John Warren and Powell Bird. A sawmill was built in the Forksville area in 1810. Forksville was formed from Forks Township, Sullivan County, Pennsylvania, Forks Township in 1880. Geography According to the United States Census Bureau, the borough has a total area of , all land. Demographics At the 2010 United States Census, 2010 census, there were 145 people, 67 households, and 42 families residing in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Loyalsock Creek
Little Loyalsock Creek is the major tributary of Loyalsock Creek in Lycoming and Sullivan counties, Pennsylvania, United States. The creek is long.U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed August 8, 2011 Via Loyalsock Creek and the West Branch Susquehanna River, it is part of the Susquehanna River drainage basin, and waters from it flow ultimately into the Chesapeake Bay. Course Little Loyalsock Creek has its source near the borough of Dushore in Sullivan County, then flows west-southwest to its confluence with Loyalsock Creek in the borough of Forksville. See also *List of rivers of Pennsylvania This is a list of streams and rivers in the U.S. state of Pennsylvania. By drainage basin This list is arranged by drainage basin, with respective tributaries indented under each larger stream's name. Delaware Bay Chesapeake Bay *''E ... References External linksPennsylvania Department of Environmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saunders_Quarry-1.jpg "Click for more on -> Sandstone")
