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Farmville Basin
The Farmville Basin was one of the Eastern North America Rift Basins. It lies west of Virginia State Route 45 and includes Farmville, Virginia. Extent The Farmville Basin lies in Virginia spreading North from Farmville, through Cumberland from modern day Cumberland State Forest to Briery Creek with a little bit in Buckingham. Farmville Basin Geology The combined continents of Africa and the Americas split apart from the combined continent of Pangea during the Triassic Period. A small rift was opened in the Farmville area into which water flowed and allowed for wetland life. The wetland life was later covered with sediment forming clay, and the pressure formed soft, Bituminous coal over hundreds of millions of years. Coal beds in the Triassic Basin near Richmond and Farmville were formed 205 to 245 million years ago, when Pangaea was splitting up rather than colliding. In the Triassic Basin, pressure to convert organic plant material into coal came from just the weight of overly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern North America Rift Basins
The Eastern North America Rift Basins are a series of sediment-filled '' aborted rifts'' created by large-scale continental extension. Their positions closely mirror the eastern coast of North America. Sediments and volcanic material from the rift basins are known as the Newark Supergroup. Geology Approximately 220 million years ago, during the late Triassic Period, the supercontinent Pangaea began to break apart. The focus of the rifting began somewhere between where present-day eastern North America and northwestern Africa were joined. As in all rifting environments, grabens formed. Many of these grabens were created, but for some of them extension stopped before full rifting occurred. Where only partial rifting occurred, basins formed, analogous to the present-day Basin and Range Province in the western United States. By definition, a basin is any area that collects sediments. These "aborted rifts" (rifts that are tectonically inactive and no longer collecting sediments) extend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bituminous Coal
Bituminous coal, or black coal, is a type of coal containing a tar-like substance called bitumen or asphalt. Its coloration can be black or sometimes dark brown; often there are well-defined bands of bright and dull material within the seams. It is typically hard but friable. Its quality is ranked higher than lignite and sub-bituminous coal, but lesser than anthracite. It is the most abundant rank of coal, with deposits found around the world, often in rocks of Carboniferous age. Bituminous coal is formed from sub-bituminous coal that is buried deeply enough to be heated to or higher. Bituminous coal is used primarily for electrical power generation and in the steel industry. Bituminous coal suitable for smelting iron (''coking coal'' or ''metallurgical coal'' ) must be low in sulfur and phosphorus. It commands a higher price than other grades of bituminous coal (thermal coal) used for heating and power generation. Within the coal mining industry, this type of coal is known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seam (geology)
In geology and related fields, a stratum ( : strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as either '' bedding surfaces'' or ''bedding planes''.Salvador, A. ed., 1994. ''International stratigraphic guide: a guide to stratigraphic classification, terminology, and procedure. 2nd ed.'' Boulder, Colorado, The Geological Society of America, Inc., 215 pp. . Prior to the publication of the International Stratigraphic Guide, older publications have defined a stratum as either being either equivalent to a single bed or composed of a number of beds; as a layer greater than 1 cm in thickness and constituting a part of a bed; or a general term that includes both ''bed'' and '' lamina''.Neuendorf, K.K.E., Mehl, Jr., J.P., and Jackson, J.A. , eds., 2005. ''Glossary of Geology'' 5th ed. Alexandria, Virginia, American Geological Institute. 779 pp. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raines Tavern, Virginia
Raines Tavern is an unincorporated community in Cumberland County on Virginia State Route 45 just north of Farmville, Virginia, in the U.S. state of Virginia. It was a stop on the Farmville and Powhatan Railroad from 1884 to 1905, and on the Tidewater and Western Railroad from 1905 to 1917. The Virginia General Assembly chartered the Piedmont Coal Company for John Dalby in 1860. The coal field was idle until 1891 when the Farmville Coal and Iron Company began leasing land, selling stock, and reopened the Piedmont mines. The Farmville Coal and Iron Company built a one-and-a-half mile spur rail line from the Farmville and Powhatan Railroad to the mine at Rains Tavern. This railroad provided transport from the mine to the docks at Bermuda Hundred in the Tidewater region Tidewater refers to the north Atlantic coastal plain region of the United States of America. Definition Culturally, the Tidewater region usually includes the low-lying plains of southeast Virginia, northeaste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthracite
Anthracite, also known as hard coal, and black coal, is a hard, compact variety of coal that has a submetallic luster. It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest ranking of coals. Anthracite is the most metamorphosed type of coal (but still represents low-grade metamorphism), in which the carbon content is between 86% and 97%. The term is applied to those varieties of coal which do not give off tarry or other hydrocarbon vapours when heated below their point of ignition. Anthracite ignites with difficulty and burns with a short, blue, and smokeless flame. Anthracite is categorized into standard grade, which is used mainly in power generation, high grade (HG) and ultra high grade (UHG), the principal uses of which are in the metallurgy sector. Anthracite accounts for about 1% of global coal reserves, and is mined in only a few countries around the world. The Coal Region of northeastern Pen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tectonics
Tectonics (; ) are the processes that control the structure and properties of the Earth's crust and its evolution through time. These include the processes of mountain building, the growth and behavior of the strong, old cores of continents known as cratons, and the ways in which the relatively rigid plates that constitute the Earth's outer shell interact with each other. Tectonics also provide a framework for understanding the earthquake and volcanic belts that directly affect much of the global population. Tectonic studies are important as guides for economic geologists searching for fossil fuels and ore deposits of metallic and nonmetallic resources. An understanding of tectonic principles is essential to geomorphologists to explain erosion patterns and other Earth surface features. Main types of tectonic regime Extensional tectonics Extensional tectonics is associated with the stretching and thinning of the crust or the lithosphere. This type of tectonics is found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pangaea
Pangaea or Pangea () was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from the earlier continental units of Gondwana, Euramerica and Siberia during the Carboniferous approximately 335 million years ago, and began to break apart about 200 million years ago, at the end of the Triassic and beginning of the Jurassic. In contrast to the present Earth and its distribution of continental mass, Pangaea was centred on the equator and surrounded by the superocean Panthalassa and the Paleo-Tethys Ocean, Paleo-Tethys and subsequent Tethys Ocean, Tethys Oceans. Pangaea is the most recent supercontinent to have existed and the first to be reconstructed by geologists. Origin of the concept The name "Pangaea" is derived from Ancient Greek ''pan'' (, "all, entire, whole") and ''Gaia (mythology), Gaia'' or Gaea (, "Mother goddess, Mother Earth, land"). The concept that the continents once formed a contiguous land mass was hypothesised, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richmond, Virginia
(Thus do we reach the stars) , image_map = , mapsize = 250 px , map_caption = Location within Virginia , pushpin_map = Virginia#USA , pushpin_label = Richmond , pushpin_map_caption = Location within Virginia##Location within the contiguous United States , pushpin_relief = yes , coordinates = , subdivision_type = Country , subdivision_name = , subdivision_type1 = U.S. state, State , subdivision_name1 = , established_date = 1742 , , named_for = Richmond, London, Richmond, United Kingdom , government_type = , leader_title = List of mayors of Richmond, Virginia, Mayor , leader_name = Levar Stoney (Democratic Party (United States), D) , total_type = City , area_magnitude = 1 E8 , area_total_sq_mi = 62.57 , area_land_sq_mi = 59.92 , area_ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triassic Period
The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period of the Mesozoic Era. Both the start and end of the period are marked by major extinction events. The Triassic Period is subdivided into three epochs: Early Triassic, Middle Triassic and Late Triassic. The Triassic began in the wake of the Permian–Triassic extinction event, which left the Earth's biosphere impoverished; it was well into the middle of the Triassic before life recovered its former diversity. Three categories of organisms can be distinguished in the Triassic record: survivors from the extinction event, new groups that flourished briefly, and other new groups that went on to dominate the Mesozoic Era. Reptiles, especially archosaurs, were the chief terrestrial vertebrates during this time. A specialized subgroup of arch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginia State Route 45
State Route 45 (SR 45) is a primary state highway in the U.S. state of Virginia. The state highway runs from the junction of U.S. Route 15 Business (US 15 Business) and US 460 Business in Farmville north to SR 6 at Georges Tavern. SR 45 is the primary north–south highway of Cumberland County, where the highway meets US 60 near the county seat, Cumberland. Route description SR 45 begins at an intersection with US 15 Business and US 460 Business near the campus of Longwood University in the town of Farmville, which has portions in Prince Edward and Cumberland counties. US 15 Business heads south on Main Street and US 460 Business heads east on Third Street; the two business routes head west together on Third Street. SR 45 heads north on Main Street and intersects the High Bridge Trail, a rail trail along a former Norfolk Southern Railway line. The state highway leaves the downtown area and crosses the Appomattox River into Cumberland County. SR 45 heads northeast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buckingham County, Virginia
Buckingham County is a rural United States county located in the Commonwealth of Virginia, and containing the geographic center of the state. Buckingham County is part of the Piedmont region of Virginia, and the county seat is Buckingham. Buckingham County was created in 1761 from the southeastern portion of Albemarle County and was predominantly farmland. The county was probably named in honor of the Duke of Buckingham, though the precise origin is uncertain. Several changes were made to the borders, until the existing boundaries were established in 1860. As of the 2020 census, the county population was 16,824. Buckingham is part of the Charlottesville Metropolitan Statistical Area. History Buckingham County, lying south of the James River and in the Piedmont at the geographic center of the state, was established on May 1, 1761 from the southeastern portion of Albemarle County. The origin of the county name probably comes from the Duke of Buckingham (Buckinghamshire, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
