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Suwannee Limestone
The Suwannee Limestone is an Early Oligocene geologic formation of exposed limestones in North Florida, United States. Description Suwannee Limestone is found in the peninsula carbonate outcroppings on the northwestern, northeastern and southwestern flanks of the Ocala Platform. However, Suwannee Limestone is not present on an area known as Orange Island (Florida), Orange Island on the eastern side of the Ocala Platform due to erosion, nondeposition or both. This limestone is present in southeastern Leon County, Florida, Leon, Jefferson County, Florida, Jefferson, Madison County, Florida, Madison, Taylor County, Florida, Taylor, Lafayette County, Florida, Lafayette counties as well as Hamilton County, Florida, Hamilton along the upper Suwannee River basin, and southward into Suwannee County, Florida. Early Oligocene Suwannee Limestone was recognized in the northwestern peninsula by P. F. Huddleston in 1993 as a triple subdivision of Suwannee Limestone, Ellaville Limestone, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological Formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness (geology), thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geologic Formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by Abraham Gottlob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crystalline
A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macroscopic single crystals are usually identifiable by their geometrical shape, consisting of flat faces with specific, characteristic orientations. The scientific study of crystals and crystal formation is known as crystallography. The process of crystal formation via mechanisms of crystal growth is called crystallization or solidification. The word ''crystal'' derives from the Ancient Greek word (), meaning both "ice" and " rock crystal", from (), "icy cold, frost". Examples of large crystals include snowflakes, diamonds, and table salt. Most inorganic solids are not crystals but polycrystals, i.e. many microscopic crystals fused together into a single solid. Polycrystals include most metals, rocks, ceramics, and ice. A third categor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolomitized
Dolomitization is a geological process where magnesium ions replace calcium ions in the mineral calcite, resulting in the formation of dolomite. Dolomitization conditions are present in Abu Dhabi, the Mediterranean Sea, and some Brazilian hypersaline lagoons (most notably Lagoa Vermelha Lagoon). The areas where dolomitization take place are limited, as modern seawater is less suited to dolomite formation. This is evident in the noticeable decrease in modern dolomite depositions compared to older depositions. Dolomitization involves substantial recrystallization which can be described by the following equation: 2 CaCO3(calcite) + Mg2+ ↔ CaMg(CO3)2(dolomite) + Ca2+ The conditions for dolomitization depend on several factors, including temperature, saturation state, Mg:Ca ratio, and the presence of inhibitors and microorganisms.Microorganisms allow the precipitation of preliminary dolomite stages through certain metabolic pathways. Dolomitization occurs in kinetic intermediat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Packstone
Under the Dunham classification (Dunham, 1962Dunham, R.J. (1962) Classification of carbonate rocks according to depositional texture. In: Classification of Carbonate Rocks (Ed. W.E. Ham), Am. Assoc. Pet. Geol. Mem., 1, 108–121.) system of limestones, a packstone is defined as a grain-supported carbonate rock that contains 1% or more mud-grade fraction. This definition has been clarified by Lokier and Al Junaibi (2016) as ''a carbonate-dominated lithology containing carbonate mud (2 mm''. The identification of packstone A study of the adoption and use of carbonate classification systems by Lokier and Al Junaibi (2016) identified three common problems encountered when describing a packstone: * Failure to identify the fabric as supported by the sand grade grain-size fraction - resulting in misidentification as wackestone Under the Dunham classification (Dunham, 1962Dunham, R.J., 1962. Classification of carbonate rocks according to depositional texture. In: W.E. Ham (Ed.), Class ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grainstone
Under the Dunham classification (Dunham, 1962) system of limestones, a grainstone is defined as a grain-supported carbonate rock that contains less than 1% mud-grade material. This definition has recently been clarified as ''a carbonate-dominated rock that does not contain any carbonate mud and where less than 10% of the components are larger than 2 mm.'' The spaces between grains may be empty (pores) or filled by cement. The identification of grainstone The presence of any primary carbonate mud precludes a classification of grainstone. A study of the use of carbonate classification systems by Lokier and Al Junaibi highlighted that the most common source of confusion in the classification of grainstone was to misidentify fine-grained internal micrite, generated by in-situ processes, as clay–silt grade sediment - thus resulting in the misidentification of grainstone as packstone. Failure to correctly determine the size and abundance of component grains greater than two millime ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellaville Limestone
Ellaville is a city in Schley County, Georgia, United States. The population was 1,812 at the 2010 census. The city is the county seat of Schley County. Ellaville is part of the Americus micropolitan statistical area. History A town named Pond Town was established in 1812 along the stage coach in the area that is now the location of the Ellaville City Cemetery. The area was then part of the lands belonging to the Muscogee (Creek) Nation. In 1821, after the Treaty of Indian Springs the area became part of the state of Georgia. In 1826, it served as temporary county seat for Lee County upon the creation of the then vast county. Pond Town soon became a lively town noted for horse racing and whiskey. In 1831, the area became part of Sumter County. Ellaville was founded in 1857 as county seat of the newly formed Schley County. It was incorporated as a town in 1859. The community was named after the daughter of a first settler. Lynchings * The hanging of Charles Blackman occ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suwannee County, Florida
Suwannee County is a county located in the north central portion of the state of Florida. As of the 2020 census, the population was 43,474, up from 41,551 in 2010. Its county seat is Live Oak. Suwannee County was a dry county until August 2011, when the sale of alcoholic beverages became legal in the county. History Suwannee County was created in 1858, as railways were constructed through the area connecting it to Jacksonville, Tallahassee, and points north. It was named after the Suwannee River, which forms the county's northern, western, and much of its southern border. The word "Suwannee" may either be a corruption of the Spanish ''San Juan'' ("Saint John") or from the Cherokee ''sawani'' ("echo river"). During the American Civil War, Company K of the 3rd Florida Infantry Regiment was composed almost entirely of men from Suwannee County. In 1884, Florida's volunteer militia was reorganized and the Suwanee Rifles were established. The Rifles were among the twelve compani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lafayette County, Florida
Lafayette County is a county located in the north central portion of the state of Florida. As of the 2020 census, the population was 8,226, making it the second-least populous county in Florida. The county seat is Mayo. Lafayette County is a prohibition or partially dry county, allowing retail sales of beer. History Lafayette County was created on December 23, 1856, from part of Madison County on the same day as Taylor County was also split off from Madison County. At the time it comprised all the area of present-day Lafayette and Dixie counties. The county was named in honor of the Marquis de Lafayette, the French general who rendered assistance to the Continental Army in the American Revolutionary War. The famed Suwannee River forms the entire eastern boundary. The county courts first met at the home of Ariel Jones near Fayetteville. The county seat was New Troy until the court house burned down on New Year's Eve, 1892. It was moved to Mayo in 1893, and Mayo is currentl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madison County, Florida
Madison County is a county located in the north central portion of the state of Florida, and borders the state of Georgia to the north. As of the 2020 census, the population was 17,968. Its county seat is also called Madison. History Located in what is known as the Florida Panhandle, Madison County was created in 1827. It was named for James Madison, fourth President of the United States of America, who served from 1809 to 1817. It was developed as part of the plantation belt, with cotton cultivated and processed by enslaved African Americans. The county's economic and population growth was stagnant from the 1880s and for several decades into the early 20th century. Madison County High School is one of the two high schools in Madison, the other is a charter high school, James Madison Preparatory High School. There are two high performing charter schools in Madison County and are as follows: Madison Creative Arts Academy (K-8) mcaa.academy James Madison Preparatory High Scho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jefferson County, Florida
Jefferson County is a county located in the Big Bend region in the northern part of the U.S. state of Florida. As of the 2020 census, the population was 14,510. Its county seat is Monticello. Jefferson County is part of the Tallahassee, FL Metropolitan Statistical Area but is the 3rd most rural county in Florida. There are no traffic signals within the entire county. History In the mid to late 18th century, a group of Native Americans from Chiaha chiefdom settled in what is now Jefferson County. This group would eventually become an element of the Mikasuki speaking Seminole. Jefferson County was created in 1827. It was named for Thomas Jefferson, third president of the United States, who had died the year before the county's establishment. Forts of Jefferson County * Fort Roger Jones (1839), Aucilla (Ocilla Ferry), north of US 90. * Fort Noel (1839–1842), south of Lamont on the Aucilla River, northwest of Fort Pleasant in Taylor County. Also known as Fort Number Thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
