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Alum Bluff Group
The Alum Bluff Group is a geologic group in the states of Georgia, Florida, and Alabama. It preserves fossils dating back to the Neogene period. Age Period: Paleogene to Neogene Epoch: Late Oligocene to Early Miocene Faunal stage: Chattian through Hemphillian ~23.03–5.33 mya, calculates to a period of Location The Alum Bluff Group replaces the Hawthorn Group west of the Apalachicola River with occurrences in Bay, Calhoun, Holmes, Jackson, Liberty, Okaloosa, Walton, and Washington counties. It is younger than the Torreya Formation to the east based on superpositioning. The Alum Bluff Group outcrops beneath a thin overburden in the western panhandle from river valleys in Okloosa County eastward to western Jackson County. Lithology The group is composed of clays, sands and shell beds. These vary from fossil bearing sandy clays to sands, clays, and carbonate beds absent of fossil content with glauconite and phosphate mica which is common. The coloration is from crea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Group (stratigraphy)
In geology, a group is a lithostratigraphic unit consisting of a series of related formations that have been classified together to form a group. Formations are the fundamental unit of stratigraphy. Groups may sometimes be combined into supergroups. Groups are useful for showing relationships between formations, and they are also useful for small-scale mapping or for studying the stratigraphy of large regions. Geologists exploring a new area have sometimes defined groups when they believe the strata within the groups can be divided into formations during subsequent investigations of the area. It is possible for only some of the strata making up a group to be divided into formations. An example of a group is the Glen Canyon Group, which includes (in ascending order) the Wingate Sandstone, the Moenave Formation, the Kayenta Formation, and the Navajo Sandstone. Each of the formations can be distinguished from its neighbor by its lithology, but all were deposited in the same vast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apalachicola River
The Apalachicola River is a river, approximately 160 mi (180 km) long in the state of Florida. The river's large watershed, known as the ACF River Basin, drains an area of approximately into the Gulf of Mexico. The distance to its farthest head waters in northeast Georgia is approximately 500 miles (800 km). Its name comes from the Apalachicola people, who used to live along the river. Description The river is formed on the state line between Florida and Georgia, near the town of Chattahoochee, Florida, approximately northeast of Panama City, by the confluence of the Flint and Chattahoochee rivers. The actual confluence is contained within the Lake Seminole reservoir formed by the Jim Woodruff Dam. It flows generally south through the forests of the Florida Panhandle, past Bristol. In northern Gulf County, it receives the Chipola River from the west. It flows into Apalachicola Bay, an inlet of the Gulf of Mexico, at Apalachicola, Florida. The lower of the riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sand
Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass. The composition of sand varies, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal settings is silica (silicon dioxide, or SiO2), usually in the form of quartz. Calcium carbonate is the second most common type of sand, for example, aragonite, which has mostly been created, over the past 500million years, by various forms of life, like coral and shellfish. For example, it is the primary form of sand apparent in areas where reefs have dominated the ecosystem for millions of years like the Caribbean. Somewhat more rarely, sand may be composed of calciu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clay
Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4). Clays develop plasticity when wet, due to a molecular film of water surrounding the clay particles, but become hard, brittle and non–plastic upon drying or firing. Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as a reddish or brownish colour from small amounts of iron oxide. Clay is the oldest known ceramic material. Prehistoric humans discovered the useful properties of clay and used it for making pottery. Some of the earliest pottery shards have been dated to around 14,000 BC, and clay tablets were the first known writing medium. Clay is used in many modern industrial processes, such as paper making, cement production, and chemical filtering. Between one-half and two-thirds of the world's population live or work in buildings made with clay, often ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overburden
In mining, overburden (also called waste or spoil) is the material that lies above an area that lends itself to economical exploitation, such as the rock, soil, and ecosystem that lies above a coal seam or ore body. Overburden is distinct from tailings, the material that remains after economically valuable components have been extracted from the generally finely milled ore. Overburden is removed during surface mining, but is typically not contaminated with toxic components. Overburden may also be used to restore an exhausted mining site during reclamation. Interburden is material that lies between two areas of economic interest, such as the material separating coal seams within strata.Peng, Syd S. (1986) ''Coal Mine Ground Control'' (2nd edition), Wiley, New York, page 303, Analogous uses Overburden is also used for all soil and ancillary material above the bedrock horizon in a given area. By analogy, overburden is also used to describe the soil and other material that lies ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outcrop
An outcrop or rocky outcrop is a visible exposure of bedrock or ancient superficial deposits on the surface of the Earth. Features Outcrops do not cover the majority of the Earth's land surface because in most places the bedrock or superficial deposits are covered by soil and vegetation and cannot be seen or examined closely. However, in places where the overlying cover is removed through erosion or tectonic uplift, the rock may be exposed, or ''crop out''. Such exposure will happen most frequently in areas where erosion is rapid and exceeds the weathering rate such as on steep hillsides, mountain ridges and tops, river banks, and tectonically active areas. In Finland, glacial erosion during the last glacial maximum (ca. 11000 BC), followed by scouring by sea waves, followed by isostatic uplift has produced many smooth coastal and littoral outcrops. Bedrock and superficial deposits may also be exposed at the Earth's surface due to human excavations such as quarrying and build ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torreya Formation
The Torreya Formation is a Miocene geologic formation with an outcrop in North Florida. It is within the Hawthorn Group. Age Period: Neogene Epoch: Early Miocene Faunal stage: Aquitanian through early Messinian ~19–15.3 mya, calculates to a period of Composition The Torreya Formation is exposed or near the surface from Gadsden County, Florida on the west. Its eastern extent is westernmost Hamilton County, Florida. It includes the counties of Liberty, Leon, Jefferson, Madison, and Wakulla. It is informally subdivided into a lower carbonate unit and an upper siliciclastic unit. The majority of Torreya Formation outcrops expose the siliciclastic part of the unit. Lithology The siliciclastics are quartz and vary in color from white to light olive gray. They are unconsolidated to poorly indurated (hard), slightly clayey sands with minor phosphate to light gray to bluish gray, poorly consolidated, variably silty clay (Dogtown Member). The siliciclastics are sporadically fossil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington County, Florida
Washington County is a County (United States), county located in the northwestern part of the U.S. state of Florida, in the Florida Panhandle, Panhandle. As of the 2020 United States census, 2020 census, the population was 25,318. Its county seat is Chipley, Florida, Chipley. History Washington County was created in 1825, and was nearly twice the size of the State of Delaware, stretching all the way to the Gulf of Mexico. After a century of boundary shifts, the county, with over of rolling hills covered in thick, stately pines and mixed hardwood forests, now covers a large portion of the central Florida Panhandle. Over a span of more than 150 years, Washington County has seen Native American, Spanish and English cultural influences. The county's historical lore is rich with stories of the exploits of Andrew Jackson. There are numerous Native American mounds and evidence of strong settlements still being discovered. Named after George Washington, the first President of the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walton County, Florida
Walton County is located on the Emerald Coast in the northwestern part of the U.S. state of Florida, with its southern border on the Gulf of Mexico. As of the 2020 census, the population was 75,305. Its county seat is DeFuniak Springs. The county is home to the highest natural point in Florida: Britton Hill, at . Walton County is included in the Crestview–Fort Walton Beach–Destin Metropolitan Statistical Area. History Walton County was organized by European Americans in 1824. It was named for Colonel George Walton Jr., secretary of the Florida Territory from 1821 to 1826. Walton, the son of George Walton, a signer of the Declaration of Independence, was born 15 August 1786 in Augusta, Georgia, and died 20 March 1859 in Petersburg, Virginia. Between 1763 and 1783 the territory that has since become Walton County was part of the colony of British West Florida. During this time British settlers permanently settled in the area, becoming the first English-speaking people ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Okaloosa County, Florida
Okaloosa County is located in the northwestern portion of the U.S. state of Florida, extending from the Gulf of Mexico to the Alabama state line. As of the 2020 census, the population was 211,668. Its county seat is Crestview. Okaloosa County is included in the Crestview-Fort Walton Beach-Destin, FL Metropolitan Statistical Area. History Okaloosa County was created by an act passed on September 7, 1915, formed from the eastern ranges of Santa Rosa County and the western ranges of Walton County. ''Okaloosa'' is a Choctaw word meaning "black water"; ''oka'' means "water" and ''lusa'' means "black" in the Choctaw language. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (14.0%) is water. Fort Walton Beach and three United States Air Force bases, ( Duke Field in the North and Eglin AFB and Hurlburt Field are in the south). Adjacent counties * Covington County, Alabama - north * Walton County, Florida - east * Santa Rosa Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberty County, Florida
Liberty County is a county located in the state of Florida. As of the 2020 census, the population was 7,974, making it the least populous county in Florida. Its county seat is Bristol. Liberty County is one of only two dry counties in Florida (the other is Lafayette County). The Apalachicola National Forest occupies half the county. History Liberty County was created in 1855 and is named after the American ideal of liberty. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.9%) is water. The county is bordered on the west by the Apalachicola River. Adjacent counties * Gadsden County - northeast * Wakulla County - east * Leon County - east * Franklin County - south * Gulf County - southwest * Calhoun County - west * Jackson County - northwest National protected area * Apalachicola National Forest (part) Demographics As of the 2020 United States census, there were 7,974 people, 2,513 households, and 1,602 families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jackson County, Florida
Jackson County is a county located in the U.S. state of Florida, on its northwestern border with Alabama. As of the 2020 census, the population was 47,319. Its county seat is Marianna. History Jackson County was created by the Florida Territorial Council in 1822 out of Escambia County, at the same time that Duval County was organized from land of St. Johns County, making them the third and fourth counties in the Territory. The county was named for Andrew Jackson, a General of the War of 1812, who had served as Florida's first military governor for six months in 1821. Jackson County originally extended from the Choctawhatchee River on the west to the Suwannee River on the east. By 1840 the county had been reduced close to its present boundaries through the creation of new counties from its original territory, following an increase of population in these areas. Minor adjustments to the county boundaries continued through most of the 19th century, however. There were no towns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
