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Turtle Creek (West Branch Susquehanna River Tributary)
Turtle Creek is a tributary of the West Branch Susquehanna River in Union County, Pennsylvania, in the United States. It is long and flows through Limestone Township, Buffalo Township, and East Buffalo Township. The watershed of the creek has an area of . The creek is designated as an impaired waterbody, with the cause of the impairment being siltation and the source being agriculture. It has a daily sediment load of . The main surficial rock types in the creek's watershed include shale, carbonate, and sandstone. The creek is in the ridge and valley physiographic province. The main land uses in the watershed of Turtle Creek are forested land and agriculture. However, low-intensity development, wetlands, and grass/turf also occur within the watershed. The area in the creek's vicinity was settled as early as the late 1760s and various mills were built along it in the late 18th century. A number of bridges have been constructed across it. The drainage basin of the creek is designa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Susquehanna River
The Susquehanna River (; Lenape: Siskëwahane) is a major river located in the Mid-Atlantic region of the United States, overlapping between the lower Northeast and the Upland South. At long, it is the longest river on the East Coast of the United States. By watershed area, it is the 16th-largest river in the United States,Susquehanna River Trail Pennsylvania Fish and Boat Commission, accessed March 25, 2010.Susquehanna River , Green Works Radio, accessed March 25, 2010. and also the longest river in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Source
The headwaters of a river or stream is the farthest place in that river or stream from its estuary or downstream confluence with another river, as measured along the course of the river. It is also known as a river's source. Definition The United States Geological Survey (USGS) states that a river's "length may be considered to be the distance from the mouth to the most distant headwater source (irrespective of stream name), or from the mouth to the headwaters of the stream commonly known as the source stream". As an example of the second definition above, the USGS at times considers the Missouri River as a tributary of the Mississippi River. But it also follows the first definition above (along with virtually all other geographic authorities and publications) in using the combined Missouri—lower Mississippi length figure in lists of lengths of rivers around the world. Most rivers have numerous tributaries and change names often; it is customary to regard the longest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danville, Pennsylvania
Danville is a borough in and the county seat of Montour County, Pennsylvania, United States, along the North Branch of the Susquehanna River. The population was 4,221 at the census. Danville is part of the Bloomsburg-Berwick micropolitan area. History Native American history As Europeans explored the coastal regions reachable from ships at the dawn of the 17th Century, the whole valley of the Susquehanna from South-central New York state to the upper Chesapeake Bay was owned by the fierce Iroquois-like Susquehannock people, like the Erie people, an Iroquoian speaking tribe with a similar related culture.see Susquehannock#History main article coverage and citations. As the European wars of religion lulled before the cataclysm of the Thirty Years' War, ca. 1600 AD the protestant Dutch traders first entered the Delaware Valley and began regularly trading firearms for furs, especially highly valued beaver pelts with the inland Susquehannock people in the vicinity of greater P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron Ore
Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the form of magnetite (, 72.4% Fe), hematite (, 69.9% Fe), goethite (, 62.9% Fe), limonite (, 55% Fe) or siderite (, 48.2% Fe). Ores containing very high quantities of hematite or magnetite (greater than about 60% iron) are known as "natural ore" or "direct shipping ore", meaning they can be fed directly into iron-making blast furnaces. Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel—98% of the mined iron ore is used to make steel. In 2011 the ''Financial Times'' quoted Christopher LaFemina, mining analyst at Barclays Capital, saying that iron ore is "more integral to the global economy than any other commodity, except perhaps oil". Sources Metallic iron is virtually unknown on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Daily Item (Sunbury)
''The Daily Item'' is a daily newspaper in Sunbury, Pennsylvania, covering the Central Susquehanna Valley Region. It is owned by Community Newspaper Holdings Inc. ''The Sunbury Daily'' (founded 1872) and ''The Evening Item'' (1893) merged July 1, 1936. Publishing five afternoons per week, ''The Daily Item'' was owned by the Dewart family and other local investors until April 15. 1970, when Ottaway Community Newspapers purchased it. Ottaway streamlined and upgraded the newspaper. It built new presses in 1979 and introduced Saturday and Sunday morning editions in the late 1980s. In 2001, the paper bought ''The Danville News''. Community Newspaper Holdings bought ''The Daily Item'' and ''The Danville News'' in late 2006 from Ottaway Community Newspapers, a division of Dow Jones & Company. In May 2015, the newspaper published a letter to the editor calling for the execution of US President Barack Obama Barack Hussein Obama II ( ; born August 4, 1961) is an American politi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shamokin Mountain
{{disambiguation ...
Shamokin may refer to the following: Geographical locations * Shamokin, Pennsylvania, a city in Northumberland County * Shamokin Dam, Pennsylvania, a borough in Snyder County * Shamokin Township, Northumberland County, Pennsylvania * Shamokin (village), 18th century Native American settlement near the site of present Sunbury * Great Shamokin Path, a Native American trail * Shamokin Area School District, a public school district in Northumberland County * Shamokin Valley Railroad, in Northumberland County * Shamokin Creek, a tributary of the Susquehanna River Other * ''Shamokin!!!'', a 2007 jazz album by Mostly Other People Do the Killing Mostly Other People Do the Killing is a jazz quartet based in New York City including trumpeter Peter Evans, saxophonist Jon Irabagon, bassist Matthew "Moppa" Elliott, and drummer Kevin Shea. The group formed in 2003 and has released several al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ridge
A ridge or a mountain ridge is a geographical feature consisting of a chain of mountains or hills that form a continuous elevated crest for an extended distance. The sides of the ridge slope away from the narrow top on either side. The lines along the crest formed by the highest points, with the terrain dropping down on either side, are called the ridgelines. Ridges are usually termed hills or mountains as well, depending on size. Smaller ridges, especially those leaving a larger ridge, are often referred to as spurs. Types There are several main types of ridges: ;Dendritic ridge: In typical dissected plateau terrain, the stream drainage valleys will leave intervening ridges. These are by far the most common ridges. These ridges usually represent slightly more erosion resistant rock, but not always – they often remain because there were more joints where the valleys formed or other chance occurrences. This type of ridge is generally somewhat random in orientation, often ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Groundwater
Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all readily available freshwater in the world is groundwater. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become completely saturated with water is called the water table. Groundwater is recharged from the surface; it may discharge from the surface naturally at springs and seeps, and can form oases or wetlands. Groundwater is also often withdrawn for agricultural, municipal, and industrial use by constructing and operating extraction wells. The study of the distribution and movement of groundwater is hydrogeology, also called groundwater hydrology. Typically, groundwater is thought of as water flowing through shallow aquifers, but, in the technical sense, it can also contain soil moisture, perma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erodability
Erodability (or erodibility) is the inherent yielding or nonresistance of soils and rocks to erosion. A high erodability implies that the same amount of work exerted by the erosion processes leads to a larger removal of material. Because the mechanics behind erosion depend upon the competence and coherence of the material, erodability is treated in different ways depending on the type of surface that eroded. Soils Soil erodibility is a lumped parameter that represents an integrated annual value of the soil profile reaction to the process of soil detachment and transport by raindrops and surface flow. The most commonly used model for predicting soil loss from water erosion is the '' Universal Soil Loss Equation (USLE)'' (also known as the K-factor technique), which estimates the average annual soil loss A as: :A = R K L S C P where ''R'' is thrainfall erosivity factor ''K'' is the soil erodibility, ''L'' and ''S'' are topographic factors representing length and slope, and ''C'' and ' ... [...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] |
Carbonate
A carbonate is a salt of carbonic acid (H2CO3), characterized by the presence of the carbonate ion, a polyatomic ion with the formula . The word ''carbonate'' may also refer to a carbonate ester, an organic compound containing the carbonate group C(=O)(O–)2. The term is also used as a verb, to describe carbonation: the process of raising the concentrations of carbonate and bicarbonate ions in water to produce carbonated water and other carbonated beverageseither by the addition of carbon dioxide gas under pressure or by dissolving carbonate or bicarbonate salts into the water. In geology and mineralogy, the term "carbonate" can refer both to carbonate minerals and carbonate rock (which is made of chiefly carbonate minerals), and both are dominated by the carbonate ion, . Carbonate minerals are extremely varied and ubiquitous in chemically precipitated sedimentary rock. The most common are calcite or calcium carbonate, CaCO3, the chief constituent of limestone (as well a ... [...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] |
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