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Little Tomhicken Creek
Little Tomhicken Creek is a tributary of Tomhicken Creek in Schuylkill County, Pennsylvania, in the United States. It is approximately long and flows through East Union Township and North Union Township. The watershed of the stream has an area of . The creek is considered to be a Coldwater Fishery. However, it is devoid of fish life and is impaired by acid mine drainage. It also has low water quality. The main rock formations in the creek's watershed are the Mauch Chunk Formation and the Pottsville Formation and the main soil is the Hazleton soil. Nearly all of the creek's length is fairly close to a road. Course Little Tomhicken Creek begins in a strip mine on Green Mountain near Cove Mountain Drive in East Union Township. It flows north for a few hundred feet, almost immediately entering a valley. It then turns northeast for a few hundred feet before turning north again and flowing parallel to Nuremberg Road for several tenths of a mile. The creek then enters North Union Towns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catawissa Creek
Catawissa Creek (colloquially known as The Cat) is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed August 8, 2011 tributary of the Susquehanna River in east-central Pennsylvania in the United States. Its Drainage basin, watershed has an area of . The waters of Catawissa Creek are highly acidic, with a pH of 4.5, due to runoff from an abandoned mine in the creek's watershed. Catawissa Creek is smaller than the nearby Fishing Creek (North Branch Susquehanna River), Fishing Creek due to a lack of major tributaries. Catawissa Creek starts in Luzerne County, not far from Hazleton, Pennsylvania, Hazleton. It flows west and slightly south into Schuylkill County, Pennsylvania, Schuylkill County before flowing north into Columbia County, Pennsylvania, Columbia County and then west to the Susquehanna River, which it flows into at Catawissa, Pennsylvania, Catawissa. It parallels Catawissa Mountain for a significant portion of it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Level
Mean sea level (MSL, often shortened to sea level) is an average surface level of one or more among Earth's coastal bodies of water from which heights such as elevation may be measured. The global MSL is a type of vertical datuma standardised geodetic datumthat is used, for example, as a chart datum in cartography and marine navigation, or, in aviation, as the standard sea level at which atmospheric pressure is measured to calibrate altitude and, consequently, aircraft flight levels. A common and relatively straightforward mean sea-level standard is instead the midpoint between a mean low and mean high tide at a particular location. Sea levels can be affected by many factors and are known to have varied greatly over geological time scales. Current sea level rise is mainly caused by human-induced climate change. When temperatures rise, Glacier, mountain glaciers and the Ice sheet, polar ice caps melt, increasing the amount of water in water bodies. Because most of human settlem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erosion
Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is distinct from weathering which involves no movement. Removal of rock or soil as clastic sediment is referred to as ''physical'' or ''mechanical'' erosion; this contrasts with ''chemical'' erosion, where soil or rock material is removed from an area by dissolution. Eroded sediment or solutes may be transported just a few millimetres, or for thousands of kilometres. Agents of erosion include rainfall; bedrock wear in rivers; coastal erosion by the sea and waves; glacial plucking, abrasion, and scour; areal flooding; wind abrasion; groundwater processes; and mass movement processes in steep landscapes like landslides and debris flows. The rates at which such processes act control how fast a surface is eroded. Typically, physical erosion procee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passive Treatment System
A passive treatment system is a method for removing metals from acid mine drainage. There are several types of passive treatment systems, each of which may be used on their own or in combination to treat effluents. The type of system selected is dependent upon the chemistry of the acid mine drainage and the flow of the discharge, as well as relevant regulations. Passive treatment systems do not require power and are less expensive than active treatment systems. They also require less maintenance, which is an advantage in remote locations. Types of passive treatment systems There are many types of water treatment systems available for removing metals from acid mine drainage. Passive treatment systems are a relatively recent technology that involves using sulfate-reducing bacteria or limestone or both to neutralize acidity and precipitate metals. These systems are sometimes called “wetlands” or “bioreactors.” Passive treatment systems differ from active systems (water treat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Population Density
Population density (in agriculture: standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geographical term.Matt RosenberPopulation Density Geography.about.com. March 2, 2011. Retrieved on December 10, 2011. In simple terms, population density refers to the number of people living in an area per square kilometre, or other unit of land area. Biological population densities Population density is population divided by total land area, sometimes including seas and oceans, as appropriate. Low densities may cause an extinction vortex and further reduce fertility. This is called the Allee effect after the scientist who identified it. Examples of the causes of reduced fertility in low population densities are * Increased problems with locating sexual mates * Increased inbreeding Human densities Population density is the number of people per unit of area, usuall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Route 924
Pennsylvania Route 924 (PA 924) is a state highway in the U.S. state of Pennsylvania. The highway runs from PA 61 in Frackville, Schuylkill County, northeast to PA 309 in Hazleton, Luzerne County. PA 924 runs through rural areas in the Coal Region, serving Gilberton, Shenandoah, Brandonville, and West Hazleton. The route is mostly a two-lane road with the section between Frackville and Shenandoah a four-lane divided highway with an interchange serving Gilberton and another four-lane divided highway section to the west of Hazleton. PA 924 intersects PA 54 in Shenandoah, PA 339 in Brandonville, Interstate 81 (I-81) west of Hazleton, and PA 93 in West Hazleton. PA 924 was designated in 1928 to run from a point between Brandonville and Sheppton northeast to PA 93 in West Hazleton. PA 142 was designated onto the road between U.S. Route 120 (US 120, now PA 61) in Frackville and Ringtown Boulevard north of Shenandoah, where it continued north to Ringtown. PA 924 was extended ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agriculture
Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities. The history of agriculture began thousands of years ago. After gathering wild grains beginning at least 105,000 years ago, nascent farmers began to plant them around 11,500 years ago. Sheep, goats, pigs and cattle were domesticated over 10,000 years ago. Plants were independently cultivated in at least 11 regions of the world. Industrial agriculture based on large-scale monoculture in the twentieth century came to dominate agricultural output, though about 2 billion people still depended on subsistence agriculture. The major agricultural products can be broadly grouped into foods, fibers, fuels, and raw materials (such as rubber). Food classes include cereals (grains), vegetables, fruits, cooking oils, meat, milk, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oneida Number 3 Tunnel
Oneida may refer to: Native American/First Nations * Oneida people, a Native American/First Nations people and one of the five founding nations of the Iroquois Confederacy * Oneida language * Oneida Indian Nation, based in New York * Oneida Nation of the Thames, also known as "Onyota'a:ka First Nation" * Oneida Nation of Wisconsin Places * Oneida County (other) * Oneida Township (other) Canada * Oneida 41, Ontario, also known as the "Oneida Settlement" * Oneida Township, Ontario, a historic township of Haldimand County United States * Oneida, former name of Martell, California * Oneida, Illinois * Oneida, Kansas * Oneida, Kentucky * Oneida, New York * Oneida, Ohio * Oneida, Pennsylvania * Oneida Falls, one of 24 named waterfalls in Ricketts Glen State Park in Pennsylvania * Oneida, Tennessee * Oneida (town), Wisconsin in Outagamie County * Oneida, Wisconsin, unincorporated community in both Outagamie and Brown Counties * Oneida Castle, New York, a villa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mine Tunnel
Mine, mines, miners or mining may refer to: Extraction or digging *Miner, a person engaged in mining or digging *Mining, extraction of mineral resources from the ground through a mine Grammar *Mine, a first-person English possessive pronoun Military * Anti-tank mine, a land mine made for use against armored vehicles * Antipersonnel mine, a land mine targeting people walking around, either with explosives or poison gas * Bangalore mine, colloquial name for the Bangalore torpedo, a man-portable explosive device for clearing a path through wire obstacles and land mines * Cluster bomb, an aerial bomb which releases many small submunitions, which often act as mines * Land mine, explosive mines placed under or on the ground * Mining (military), digging under a fortified military position to penetrate its defenses * Naval mine, or sea mine, a mine at sea, either floating or on the sea bed, often dropped via parachute from aircraft, or otherwise lain by surface ships or submarines * Par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Mountain (Pennsylvania)
Green Mountain is a common name for "The Peak", the highest point and a stratovolcano on Ascension Island, which has gained some fame for claims that it is one of very few large-scale artificial forests. Green Mountain is ranked 38th by topographic isolation. History and vegetation Many early 19th-century accounts, including Charles Darwin's (July 1836), described the volcanic island as barren with very few plants, some of them endemic to the island, not to be found anywhere else. Scientists estimate the island's native vascular plants to be between 25 and 30 species, 10 of them endemic to Ascension. This impoverished flora is a consequence of the age of the island (only 1 million years old) and isolation (over from any major landmass). Then, in 1843, the British plant collector Joseph Dalton Hooker visited the island with Sir James Clark Ross's Antarctica expedition. Hooker proposed a plan to plant the island with vegetation to attempt to increase rainfall and make life more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flood
A flood is an overflow of water ( or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline hydrology and are of significant concern in agriculture, civil engineering and public health. Human changes to the environment often increase the intensity and frequency of flooding, for example land use changes such as deforestation and removal of wetlands, changes in waterway course or flood controls such as with levees, and larger environmental issues such as climate change and sea level rise. In particular climate change's increased rainfall and extreme weather events increases the severity of other causes for flooding, resulting in more intense floods and increased flood risk. Flooding may occur as an overflow of water from water bodies, such as a river, lake, or ocean, in which the water overtops or breaks levees, resulting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soil
Soil, also commonly referred to as earth or dirt, is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life. Some scientific definitions distinguish ''dirt'' from ''soil'' by restricting the former term specifically to displaced soil. Soil consists of a solid phase of minerals and organic matter (the soil matrix), as well as a porous phase that holds gases (the soil atmosphere) and water (the soil solution). Accordingly, soil is a three-state system of solids, liquids, and gases. Soil is a product of several factors: the influence of climate, relief (elevation, orientation, and slope of terrain), organisms, and the soil's parent materials (original minerals) interacting over time. It continually undergoes development by way of numerous physical, chemical and biological processes, which include weathering with associated erosion. Given its complexity and strong internal connectedness, soil ecologists regard soil as an ecosystem. Most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
