Limestone is a sedimentary rock composed of calcium carbonate, magnesium carbonate and quartz, along with the small shells and eggs left behind when this area was covered by an inland sea.įound immediately north of Oolitic are some of the largest Limestone quarries in the world, many of them in continuous operation since the 1830s. The word Oolitic was used as an adjective for Oolitic limestone (derived from the Greek word oolite, meaning eggs and stone). Short suggested using "Oolitic", and Oolitic became incorporated on November 4, 1901. The request was refused because of a town already named Limestone, Indiana. In 1896, the name was sent to Washington, D.C., to allow a post office to be established. Oolitic was originally platted as "Limestone" on September 26, 1888. The town was founded for the purpose of quarrying this material, for building purposes. The town is built upon oolitic limestone, which gives the town's name. According to the Köppen Climate Classification system, Oolitic has a humid subtropical climate, abbreviated "Cfa" on climate maps. The climate in this area is characterized by hot, humid summers and generally mild to cool winters. Īccording to the 2010 census, Oolitic has a total area of 0.78 square miles (2.02 km 2), all land. Oolitic is the opposing basketball team during the season opener in the film Hoosiers. Oolitic is the site of a limestone statue of comic-strip boxer Joe Palooka, moved there from Bedford in 1984. Oolite is a type of limestone found in Indiana. In 1910, its population was 1,079 in 1914 it had risen to about 2,000. Oolitic was platted on March 23, 1896, by the Bedford Quarries Company. The population was 1,184 at the 2010 census. Pressure solution surface.Oolitic is a town in Indian Creek and Shawswick townships, Lawrence County, Indiana, United States. PPL image, 10x (Field of view = 2mm)īioclastic fragmant within an Ooid.
XPL image, 2x (Field of view = 7mm)īioclastic fragmant within an Ooid. Ooids in a Oolitic Grainstone, with sparry calcite matrix. Hibbard (1994): Petrography to Petrogenesis. Osmington Oolite Formation, Corallian Group, Osmington Mills, southern England. The size of the oolite reflects the time they have had exposed to the water before they were covered with later sediment. The oolites are commonly found in large current bedding structures that resemble sanddunes. Strong intertidal currents wash the 'seeds' around on the seabed, where they accumulate layers of chemically precipitated calcite from the supersaturated water. The mechanism of formation starts with a small fragment of sediment acting as a 'seed', e.g. They are usually formed in warm, supersaturated, shallow, highly agitated marine water intertidal environments, though some are formed in inland lakes. Oolitic hematite occurs at Red Mountain near Birmingham, Alabama, along with oolitic limestone.
Dolomitic and chert ooids are most likely the result of the replacement of the original texture in limestone. Ooids are most commonly composed of calcium carbonate (calcite or aragonite), but can be composed of phosphate, chert, dolomite or iron minerals, including hematite. Larger grains with similar genesis are pisoids (pisoliths). The term “ooid” is applied to grains less than 2 mm in diameter. Nucleus is usually either mineral grain or biogenic fragment. Ooids are spheroidal grains with a nucleus and mineral cortex accreted around it which increases in sphericity with distance from the nucleus. Most oolites are limestones - ooids are made of calcium carbonate (minerals aragonite or calcite). Oolite is a sedimentary rock made up of ooids (ooliths) that are cemented together.
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