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Ozark Highlands (ecoregion)
The Ozark Highlands is a Level III ecoregion designated by the Environmental Protection Agency (EPA) in four U.S. states. Most of the region is within Missouri, with a part in Arkansas and small sections in Oklahoma and Kansas. It is the largest subdivision of the region known as the Ozark Mountains, less rugged in comparison to the Boston Mountains in Arkansas, the highest part of the Ozarks. The Ozark Highlands ecoregion has been subdivided into eleven Level IV ecoregions, seven of which lie completely within Missouri. Level IV ecoregions Springfield Plateau (39a) The Springfield Plateau is the only Ozark Highland Level IV ecoregion within all four states. The nearly level to rolling Springfield Plateau is underlain by cherty limestone of the Mississippian Boone Formation and Burlington Limestone; it is less rugged and wooded than Ecoregions 38, 39b, and 39c, and lacks the Ordovician dolomite and limestone of Ecoregions 39c and 39d. Karst features, such as sinkholes and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolomite (rock)
Dolomite (also known as dolomite rock, dolostone or dolomitic rock) is a sedimentary rock, sedimentary carbonate rock that contains a high percentage of the mineral Dolomite (mineral), dolomite, CaMg(CO3)2. It occurs widely, often in association with limestone and evaporites, though it is less abundant than limestone and rare in Cenozoic rock beds (beds less than about 66 million years in age). One of the first geologists to distinguish dolomite from limestone was Déodat Gratet de Dolomieu, a French mineralogist and geologist after whom it is named. He recognized and described the distinct characteristics of dolomite in the late 18th century, differentiating it from limestone. Most dolomite was formed as a magnesium replacement of limestone or of Lime (mineral), lime mud before lithification. The geological process of conversion of calcite to dolomite is known as dolomitization and any intermediate product is known as dolomitic limestone. The "dolomite problem" refers to the v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Norfork
Norfork Dam impounds the North Fork River in the U.S. state of Arkansas, creating Norfork Lake. The large reservoir is maintained by the United States Army Corps of Engineers and spans Baxter County, Arkansas, Fulton County, Arkansas and Ozark County, Missouri. The dam is located in the city of Salesville, Arkansas, Salesville in Baxter County, within the Ozark Mountains. Arkansas Highway 177 (AR 177) crosses the lake atop the dam. There are 19 recreational parks on the lake that provide places for camping, hiking, picnicking, swimming, boating, and water skiing. Commercial docks on Norfork Lake provide boats, motors, diving equipment, and guides to the lake. History Beginnings In 1902, a pamphlet was printed by the Mountain Home Commercial club advertising the area to mining interests and suggesting the area would be suitable for power-generating dams. Several entities, including Dixie Power Company and White River Power Company, were granted franchises and explored dam s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bull Shoals Lake
Bull Shoals Lake is an artificial lake or reservoir in the Ozark Mountains of northern Arkansas and southern Missouri, United States. It has hundreds of miles of lake arms and coves, and common activities include boating, water sports, swimming, and fishing. Nineteen developed parks around the shoreline provide campgrounds, boat launches, swim areas, and marinas. History Bull Shoals Dam was created to impound the White River by one of the largest concrete dams in the United States and was the fifth largest dam in the world at its inception. Work on the dam began in 1947, was completed in 1951 and dedicated by President Harry S. Truman in 1952. At least seven small family cemeteries and 20 larger cemeteries were meticulously relocated to accommodate the new lake. Recent national events include Brostock 2010 and 2011 and the TBF Bass Federation and Bassmaster Elite Series Tournaments in 2012. Hydrology Bull Shoals Lake impounds the White River for the last time as water tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Table Rock Lake
Table Rock Lake is an artificial lake or reservoir in the Ozarks of southwestern Missouri and northwestern Arkansas in the United States. Designed, built and operated by the U.S. Army Corps of Engineers, the lake is impounded by Table Rock Dam, which was constructed from 1954 to 1958 on the White River creating the lake. The lake is a popular attraction for the city of Branson, Missouri, and the nearby town of Shell Knob, Missouri. There are several commercial marinas along the lake, and Table Rock State Park is located on the east side, both north and south of Table Rock Dam. Downstream from the dam, the Missouri Department of Conservation operates a fish hatchery, which is used to stock trout in Lake Taneycomo, which begins immediately downstream from the Table Rock Dam. The cold water discharged from the dam creates a trout fishing environment in the lake. The lake derives its name from a rock formation resembling a table at the small community of Table Rock, Misso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White River (Arkansas)
White River may refer to: Bodies of water Africa * Bakoy River, in West Africa, called the White River over a portion of its length Canada * White River (British Columbia) * White River (Vancouver Island), a river in the Discovery Passage–Johnstone Strait watersheds of British Columbia ** White River Provincial Park * White River (Nass River), a river in the Marcus Passage watershed of British Columbia * White River (Quebec) * White River (Yukon) * White River (Ontario) China * White River (China), an old name for the Hai River Dominica * White River (Dominica) Estonia * Valgejõgi, or "white river", in northern Estonia Iran * Sefīd-Rūd, or "the white river", in Gilan province Jamaica * White River (Jamaica), a river New Zealand * White River, New Zealand, a river in the South Island Montserrat * White River, Montserrat, a former river in Montserrat United Kingdom * St Austell River, a river in Cornwall also known as the White River Unit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shortleaf Pine
The shortleaf pine or ''Pinus echinata'' is a species of coniferous tree endemic to the United States. The shortleaf pine is sometimes referred to as the "old field", "spruce", "rosemary", "yellow", "two-leaf" and "heart" pine. The common name "shortleaf pine" may refer to other species like loblolly pine (''Pinus taeda''), based on a custom in the Southeastern United States to only refer to pines as either "long-leaf" or "short-leaf". However, ''P. echinata'' can be distinguished from other pines by examining its short leaves and small cones. Description The tree is variable in form, sometimes straight, sometimes crooked, with an irregular crown. The tree reaches heights of . In areas that have optimal growing conditions, the height reached is between . The trunk diameter ranges between and averages between . The leaves are needle-like, in fascicles (bundles) of two and three mixed together, and from long. The cones are long, with thin scales with a transverse keel and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithologically
The lithology of a rock unit is a description of its physical characteristics visible at outcrop, in hand or core samples, or with low magnification microscopy. Physical characteristics include colour, texture, grain size, and composition. Lithology may refer to either a detailed description of these characteristics, or a summary of the gross physical character of a rock. Examples of lithologies in the second sense include sandstone, slate, basalt, or limestone. Lithology is the basis of subdividing rock sequences into individual lithostratigraphic units for the purposes of mapping and correlation between areas. In certain applications, such as site investigations, lithology is described using a standard terminology such as in the European geotechnical standard Eurocode 7. Rock type The naming of a lithology is based on the rock type. The three major rock types are igneous, sedimentary, and metamorphic. Igneous rocks are formed directly from magma, which is a mixture of m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chert
Chert () is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide (SiO2). Chert is characteristically of biological origin, but may also occur inorganically as a precipitation (chemistry), chemical precipitate or a diagenesis, diagenetic replacement, as in petrified wood. Chert is typically composed of the petrified remains of siliceous ooze, the biogenic sediment that covers large areas of the deep ocean floor, and which contains the silicon skeletal remains of diatoms, Dictyochales, silicoflagellates, and radiolarians. Precambrian cherts are notable for the presence of fossil cyanobacteria. In addition to Micropaleontology, microfossils, chert occasionally contains macrofossils. However, some chert is devoid of any fossils. Chert varies greatly in color, from white to black, but is most often found as gray, brown, grayish brown and light green to rusty redW.L. Roberts, T.J. Campbell, G.R. Rapp Jr., ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tallgrass Prairie
The tallgrass prairie is an ecosystem native to central North America. Historically, natural and Historical ecology#Anthropogenic fire, anthropogenic fire, as well as grazing by large mammals (primarily bison) provided periodic disturbances to these ecosystems, limiting the encroachment of trees, recycling soil nutrients, and facilitating seed dispersal and germination. Prior to widespread use of the steel plow, which enabled large scale conversion to agricultural land use, tallgrass prairies extended throughout the Midwestern United States, American Midwest and smaller portions of southern Aspen parkland, central Canada, from the transitional ecotones out of eastern North American forests, west to a climatic threshold based on precipitation and soils, to the southern reaches of the Flint Hills in Kansas, to a transition into forest in Manitoba. They were characteristically found in parts of the upper Mississippi River Valley, in the central forest-grasslands transition, the centr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oak–hickory Forest
Oak–hickory forest is a type of North American forest ecosystem, and an ecoregion of the Temperate broadleaf and mixed forests Biome. Geography It has a range extending from Rhode Island and southern New York, west to Iowa, and south to Northern Georgia. Smaller, isolated oak–hickory communities can also be found as far west as North Dakota, south in Florida and in northeast Texas, and north to southern Maine and Ontario. They can also be found in Pennsylvania west to Illinois. Dominated by nut-bearing oak and hickory species of trees, the oak–hickory forest has the largest range of any deciduous forest ecosystem in eastern and central North America. Natural history The current oak–hickory forest includes the former range of the oak–chestnut forest region, which encompassed the northeast portion of the current oak–hickory range. When the American chestnut population succumbed to invasive fungal blight in the early 20th century, those forests shifted to an oak and hicko ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
