Misplaced Pages

#617382

106-614: University of the Ozarks ( U of O ) is a private university in Clarksville, Arkansas, United States. Enrollment averages around 900 students, representing 25 countries. U of O is affiliated with the Presbyterian Church (U.S.A.) . University of the Ozarks traces its roots back to 1834, making it the oldest university in Arkansas and one of the oldest institutions of higher education west of

212-455: A Mohs hardness of 2 to 4, dense limestone can have a crushing strength of up to 180 MPa . For comparison, concrete typically has a crushing strength of about 40 MPa. Although limestones show little variability in mineral composition, they show great diversity in texture. However, most limestone consists of sand-sized grains in a carbonate mud matrix. Because limestones are often of biological origin and are usually composed of sediment that

318-667: A New York businessman who was known for his interest in religion and education. College students were paid to provide much of the labor for excavation, laying of the foundation and hauling of materials. Munger Chapel, which is listed in the National Register of Historic Places , was designed by architect A.O. Clark of Rogers, Arkansas. Built of limestone trimmed with Nu-Carth stone, it is of Gothic design and follows general plans used in large cathedrals . The stained glass windows were designed and installed by The Willet Studios of Philadelphia . The university holds weekly services for

424-457: A bloom of cyanobacteria or microalgae . However, stable isotope ratios in modern carbonate mud appear to be inconsistent with either of these mechanisms, and abrasion of carbonate grains in high-energy environments has been put forward as a third possibility. Formation of limestone has likely been dominated by biological processes throughout the Phanerozoic , the last 540 million years of

530-571: A 60% increase since the establishment of HEC in 2002. The HEC digital library now provides access to over 20,000 leading research journals, covering about 75% of the world's peer-reviewed scientific journals. Until 1991, there were only two recognized private universities in Pakistan: Aga Khan University , established in 1983, and Lahore University of Management Sciences , established in 1985. By 1997, there were 10 private universities. From 2001–2002, this number had doubled to 20. Among

636-434: A carbonate rock outcrop can be estimated in the field by etching the surface with dilute hydrochloric acid. This etches away the calcite and aragonite, leaving behind any silica or dolomite grains. The latter can be identified by their rhombohedral shape. Crystals of calcite, quartz , dolomite or barite may line small cavities ( vugs ) in the rock. Vugs are a form of secondary porosity, formed in existing limestone by

742-612: A central quartz grain or carbonate mineral fragment. These likely form by direct precipitation of calcium carbonate onto the ooid. Pisoliths are similar to ooids, but they are larger than 2 mm in diameter and tend to be more irregular in shape. Limestone composed mostly of ooids is called an oolite or sometimes an oolitic limestone . Ooids form in high-energy environments, such as the Bahama platform, and oolites typically show crossbedding and other features associated with deposition in strong currents. Oncoliths resemble ooids but show

848-449: A change in environment that increases the solubility of calcite. Dense, massive limestone is sometimes described as "marble". For example, the famous Portoro "marble" of Italy is actually a dense black limestone. True marble is produced by recrystallization of limestone during regional metamorphism that accompanies the mountain building process ( orogeny ). It is distinguished from dense limestone by its coarse crystalline texture and

954-949: A composition reflecting the organisms that produced them and the environment in which they were produced. Low-magnesium calcite skeletal grains are typical of articulate brachiopods , planktonic (free-floating) foraminifera, and coccoliths . High-magnesium calcite skeletal grains are typical of benthic (bottom-dwelling) foraminifera, echinoderms , and coralline algae . Aragonite skeletal grains are typical of molluscs , calcareous green algae , stromatoporoids , corals , and tube worms . The skeletal grains also reflect specific geological periods and environments. For example, coral grains are more common in high-energy environments (characterized by strong currents and turbulence) while bryozoan grains are more common in low-energy environments (characterized by quiet water). Ooids (sometimes called ooliths) are sand-sized grains (less than 2mm in diameter) consisting of one or more layers of calcite or aragonite around

1060-412: A considerable fraction of the limestone bed. At depths greater than 1 km (0.62 miles), burial cementation completes the lithification process. Burial cementation does not produce stylolites. When overlying beds are eroded, bringing limestone closer to the surface, the final stage of diagenesis takes place. This produces secondary porosity as some of the cement is dissolved by rainwater infiltrating

1166-621: A distinction between free institutions (as in free from the State), which are recognized and funded by the Communities of Belgium (the State until 1990) and follow the same rules and laws as fully public universities, and fully private institutions, which are not recognized nor funded by the authorities, and thus do not issue valid degrees. Private ( free ) institutions are predominantly Catholic: UCLouvain , KU Leuven or Saint-Louis University, Brussels . On

SECTION 10

#1733104166618

1272-483: A drop of dilute hydrochloric acid is dropped on it. Dolomite is also soft but reacts only feebly with dilute hydrochloric acid, and it usually weathers to a characteristic dull yellow-brown color due to the presence of ferrous iron. This is released and oxidized as the dolomite weathers. Impurities (such as clay , sand, organic remains, iron oxide , and other materials) will cause limestones to exhibit different colors, especially with weathered surfaces. The makeup of

1378-402: A favorable impression throughout the region for its relatively low tuition and fees, and it allayed local concerns about the risks of co-education by enforcing a strict code of moral conduct and discipline. Under the stewardship of Rick Niece, who began serving in 1997, funding helped propel Ozarks into the twenty-first century with multiple new faculty positions; several new buildings (including

1484-621: A few million years, as this is the most stable form of calcium carbonate. Ancient carbonate formations of the Precambrian and Paleozoic contain abundant dolomite, but limestone dominates the carbonate beds of the Mesozoic and Cenozoic . Modern dolomite is quite rare. There is evidence that, while the modern ocean favors precipitation of aragonite, the oceans of the Paleozoic and middle to late Cenozoic favored precipitation of calcite. This may indicate

1590-455: A few thousand years. As rainwater mixes with groundwater, aragonite and high-magnesium calcite are converted to low-calcium calcite. Cementing of thick carbonate deposits by rainwater may commence even before the retreat of the sea, as rainwater can infiltrate over 100 km (60 miles) into sediments beneath the continental shelf. As carbonate sediments are increasingly deeply buried under younger sediments, chemical and mechanical compaction of

1696-490: A high percentage of the mineral dolomite , CaMg(CO 3 ) 2 . Magnesian limestone is an obsolete and poorly-defined term used variously for dolomite, for limestone containing significant dolomite ( dolomitic limestone ), or for any other limestone containing a significant percentage of magnesium . Most limestone was formed in shallow marine environments, such as continental shelves or platforms , though smaller amounts were formed in many other environments. Much dolomite

1802-435: A limestone sample except in thin section and are less common in ancient limestones, possibly because compaction of carbonate sediments disrupts them. Limeclasts are fragments of existing limestone or partially lithified carbonate sediments. Intraclasts are limeclasts that originate close to where they are deposited in limestone, while extraclasts come from outside the depositional area. Intraclasts include grapestone , which

1908-466: A lower Mg/Ca ratio in the ocean water of those times. This magnesium depletion may be a consequence of more rapid sea floor spreading , which removes magnesium from ocean water. The modern ocean and the ocean of the Mesozoic have been described as "aragonite seas". Most limestone was formed in shallow marine environments, such as continental shelves or platforms . Such environments form only about 5% of

2014-525: A lower diversity of organisms and a greater fraction of silica and clay minerals characteristic of marls . The Green River Formation is an example of a prominent freshwater sedimentary formation containing numerous limestone beds. Freshwater limestone is typically micritic. Fossils of charophyte (stonewort), a form of freshwater green algae, are characteristic of these environments, where the charophytes produce and trap carbonates. Limestones may also form in evaporite depositional environments . Calcite

2120-523: A mechanism for dolomitization, with one 2004 review paper describing it bluntly as "a myth". Ordinary seawater is capable of converting calcite to dolomite, if the seawater is regularly flushed through the rock, as by the ebb and flow of tides (tidal pumping). Once dolomitization begins, it proceeds rapidly, so that there is very little carbonate rock containing mixed calcite and dolomite. Carbonate rock tends to be either almost all calcite/aragonite or almost all dolomite. About 20% to 25% of sedimentary rock

2226-512: A number of areas. Students have access to a variety of academic support resources, including the university's Student Success Center. The university offers students individualized attention and academic advising, with an average class size of 17, and a student/faculty ratio of 15:1. The university is also home to the Jones Learning Center, the first program in the country designed specifically to help students with learning disabilities at

SECTION 20

#1733104166618

2332-448: A plausible source of mud. Another possibility is direct precipitation from the water. A phenomenon known as whitings occurs in shallow waters, in which white streaks containing dispersed micrite appear on the surface of the water. It is uncertain whether this is freshly precipitated aragonite or simply material stirred up from the bottom, but there is some evidence that whitings are caused by biological precipitation of aragonite as part of

2438-761: A private institution to be called " université ", and most of the universities in France are public. In France, grandes écoles are part of an alternative educational system that operates alongside the mainstream French public university system . Grandes écoles can be public , semi-private or private, but the most prestigious ones are public. These institutions operate mostly in engineering studies and business administration. The best-known semi-private grandes écoles are generally business, engineering, and humanities schools; they are generally managed by chambers of commerce and industry, with capital open to other private companies. Other grandes écoles are entirely private, but this

2544-449: A radial rather than layered internal structure, indicating that they were formed by algae in a normal marine environment. Peloids are structureless grains of microcrystalline carbonate likely produced by a variety of processes. Many are thought to be fecal pellets produced by marine organisms. Others may be produced by endolithic (boring) algae or other microorganisms or through breakdown of mollusc shells. They are difficult to see in

2650-457: A requirement for all foreign institutions endeavoring to operate businesses in the country. Almost all the private universities in Ghana focus on similar areas of academic study, including business administration, human resources, accounting, information technology, and related fields, which are offered by universities like Ashesi , Regent , Valley View , and Ghana Telecom , among others. In addition,

2756-560: Is also favored on the seaward margin of shelves and platforms, where there is upwelling deep ocean water rich in nutrients that increase organic productivity. Reefs are common here, but when lacking, ooid shoals are found instead. Finer sediments are deposited close to shore. The lack of deep sea limestones is due in part to rapid subduction of oceanic crust, but is more a result of dissolution of calcium carbonate at depth. The solubility of calcium carbonate increases with pressure and even more with higher concentrations of carbon dioxide, which

2862-482: Is an uncommon mineral in limestone, and siderite or other carbonate minerals are rare. However, the calcite in limestone often contains a few percent of magnesium . Calcite in limestone is divided into low-magnesium and high-magnesium calcite, with the dividing line placed at a composition of 4% magnesium. High-magnesium calcite retains the calcite mineral structure, which is distinct from dolomite. Aragonite does not usually contain significant magnesium. Most limestone

2968-402: Is carbonate rock, and most of this is limestone. Limestone is found in sedimentary sequences as old as 2.7 billion years. However, the compositions of carbonate rocks show an uneven distribution in time in the geologic record. About 95% of modern carbonates are composed of high-magnesium calcite and aragonite. The aragonite needles in carbonate mud are converted to low-magnesium calcite within

3074-474: Is clusters of peloids cemented together by organic material or mineral cement. Extraclasts are uncommon, are usually accompanied by other clastic sediments, and indicate deposition in a tectonically active area or as part of a turbidity current . The grains of most limestones are embedded in a matrix of carbonate mud. This is typically the largest fraction of an ancient carbonate rock. Mud consisting of individual crystals less than 5 μm (0.20 mils) in length

3180-416: Is commonly white to gray in color. Limestone that is unusually rich in organic matter can be almost black in color, while traces of iron or manganese can give limestone an off-white to yellow to red color. The density of limestone depends on its porosity, which varies from 0.1% for the densest limestone to 40% for chalk. The density correspondingly ranges from 1.5 to 2.7 g/cm . Although relatively soft, with

3286-420: Is controlled largely by the amount of dissolved carbon dioxide ( CO 2 ) in the water. This is summarized in the reaction: Increases in temperature or decreases in pressure tend to reduce the amount of dissolved CO 2 and precipitate CaCO 3 . Reduction in salinity also reduces the solubility of CaCO 3 , by several orders of magnitude for fresh water versus seawater. Near-surface water of

University of the Ozarks - Misplaced Pages Continue

3392-545: Is converted to low-magnesium calcite. Diagenesis is the likely origin of pisoliths , concentrically layered particles ranging from 1 to 10 mm (0.039 to 0.394 inches) in diameter found in some limestones. Pisoliths superficially resemble ooids but have no nucleus of foreign matter, fit together tightly, and show other signs that they formed after the original deposition of the sediments. Silicification occurs early in diagenesis, at low pH and temperature, and contributes to fossil preservation. Silicification takes place through

3498-503: Is deposited close to where it formed, classification of limestone is usually based on its grain type and mud content. Most grains in limestone are skeletal fragments of marine organisms such as coral or foraminifera . These organisms secrete structures made of aragonite or calcite, and leave these structures behind when they die. Other carbonate grains composing limestones are ooids , peloids , and limeclasts ( intraclasts and extraclasts  [ ca ] ). Skeletal grains have

3604-460: Is described as coquinite . Chalk is a soft, earthy, fine-textured limestone composed of the tests of planktonic microorganisms such as foraminifera, while marl is an earthy mixture of carbonates and silicate sediments. Limestone forms when calcite or aragonite precipitate out of water containing dissolved calcium, which can take place through both biological and nonbiological processes. The solubility of calcium carbonate ( CaCO 3 )

3710-617: Is described as micrite . In fresh carbonate mud, micrite is mostly small aragonite needles, which may precipitate directly from seawater, be secreted by algae, or be produced by abrasion of carbonate grains in a high-energy environment. This is converted to calcite within a few million years of deposition. Further recrystallization of micrite produces microspar , with grains from 5 to 15 μm (0.20 to 0.59 mils) in diameter. Limestone often contains larger crystals of calcite, ranging in size from 0.02 to 0.1 mm (0.79 to 3.94 mils), that are described as sparry calcite or sparite . Sparite

3816-462: Is distinguished from micrite by a grain size of over 20 μm (0.79 mils) and because sparite stands out under a hand lens or in thin section as white or transparent crystals. Sparite is distinguished from carbonate grains by its lack of internal structure and its characteristic crystal shapes. Geologists are careful to distinguish between sparite deposited as cement and sparite formed by recrystallization of micrite or carbonate grains. Sparite cement

3922-1108: Is due to the form of testing in schools in Taiwan, in which students take a national entrance exam to determine their university qualifications. The most well known private university is Fu Jen Catholic University , and the oldest is Tunghai University . Since the 1990s, several private universities have opened in Vietnam including Ho Chi Minh City Open University being one of the first. Some characteristics of Vietnamese private universities as of 2010 are high (very high in some cases) tuition fees, poor infrastructure, limited faculty, and human resources. Private universities are often named after scholars ( Fulbright University Vietnam, Vo Truong Toan University, Nguyen Trai University, Luong The Vinh University, Chu Van An University, Yersin University, Phan Chau Trinh University), or heroes/legends ( Hung Vuong University, Quang Trung University); although there are exceptions such as FPT University , named after

4028-528: Is home to several private universities, including Sohar University , the University of Nizwa , Middle East College , and the German University of Technology in Oman . These universities offer a range of undergraduate, graduate, and professional programs in fields such as business, engineering, and information technology. Private universities in Oman offer a more personalized and interactive learning experience, as

4134-560: Is one of the first minerals to precipitate in marine evaporites. Most limestone is formed by the activities of living organisms near reefs, but the organisms responsible for reef formation have changed over geologic time. For example, stromatolites are mound-shaped structures in ancient limestones, interpreted as colonies of cyanobacteria that accumulated carbonate sediments, but stromatolites are rare in younger limestones. Organisms precipitate limestone both directly as part of their skeletons, and indirectly by removing carbon dioxide from

4240-697: Is one private university in Madaba city, the American University of Madaba (AUM) . There are 11 private universities and colleges in Kuwait . There are 19 private universities in Lebanon. Among these, the American University of Beirut and the Lebanese American University are internationally acknowledged. The languages used for teaching in private universities are mainly French and English ; Arabic

4346-473: Is otherwise chemically fairly pure, with clastic sediments (mainly fine-grained quartz and clay minerals ) making up less than 5% to 10% of the composition. Organic matter typically makes up around 0.2% of a limestone and rarely exceeds 1%. Limestone often contains variable amounts of silica in the form of chert or siliceous skeletal fragments (such as sponge spicules, diatoms , or radiolarians ). Fossils are also common in limestone. Limestone

University of the Ozarks - Misplaced Pages Continue

4452-472: Is produced by decaying organic matter settling into the deep ocean that is not removed by photosynthesis in the dark depths. As a result, there is a fairly sharp transition from water saturated with calcium carbonate to water unsaturated with calcium carbonate, the lysocline , which occurs at the calcite compensation depth of 4,000 to 7,000 m (13,000 to 23,000 feet). Below this depth, foraminifera tests and other skeletal particles rapidly dissolve, and

4558-565: Is rarer, and they sometimes establish partnerships with public universities. Limestone Limestone ( calcium carbonate CaCO 3 ) is a type of carbonate sedimentary rock which is the main source of the material lime . It is composed mostly of the minerals calcite and aragonite , which are different crystal forms of CaCO 3 . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as

4664-504: Is responsible for the accreditation of these institutes and degrees. These mostly provide undergraduate degrees with a few providing postgraduate degrees. The Informatics Institute of Sri Lanka (IIT), NSBM Green University (NSBM), Horizon Campus and Sri Lanka Institute for Information Technology (SLIIT) are examples. Some foreign universities franchise parts of their degree courses in Sri Lanka with local institutes. Students are charged for

4770-514: Is secondary dolomite, formed by chemical alteration of limestone. Limestone is exposed over large regions of the Earth's surface, and because limestone is slightly soluble in rainwater, these exposures often are eroded to become karst landscapes. Most cave systems are found in limestone bedrock. Limestone has numerous uses: as a chemical feedstock for the production of lime used for cement (an essential component of concrete ), as aggregate for

4876-702: Is widely used in religious universities and Armenian is used in the Armenian university. The first university opened in Lebanon was the Syrian Protestant College in 1866 (which became the American University of Beirut in 1921). It was founded by Daniel Bliss, a Protestant missionary. The second university opened in Lebanon was the Université Saint-Joseph , founded by the Jesuits in 1875. Oman

4982-672: The American University in Cairo , the German University in Cairo , The British University in Egypt , the Arab Academy for Science, Technology and Maritime Transport , Misr University for Science and Technology , Misr International University , Future University in Egypt and the Modern Sciences and Arts University . In addition to the state-funded national and private universities in Egypt , international university institutions were founded in

5088-799: The FPT Corporation and Tan Tao University in Tan Tao Group . In Vietnam, there are also "semi-private university"; schools in this category which can receive partial financial support from the government. Almost all private universities have to invite professors and lecturers from state universities. Many lecturers from state-owned universities take up positions in private universities after their retirement. There are numerous private universities and independent faculties in Armenia , mostly in Yerevan . As of 2022, there are 31 private higher education institutions in

5194-653: The International University Vienna , whose accreditation was withdrawn in 2003 due to academic misconduct; Imadec University , whose first accreditation period ended in January 2006 and was not renewed; TCM Privatuniversität Li Shi Zhen in Vienna , whose accreditation period ended 2009 without renewal students; and PEF Private University of Management Vienna , which closed for economic reasons in March 2012. Belgium makes

5300-626: The Mississippi River . It was founded by Cumberland Presbyterians in 1834 as Cane Hill School in Cane Hill, Arkansas in Washington County , later becoming Cane Hill College . Its successor, Arkansas Cumberland College , opened in Clarksville in September 1891. The name was changed to College of the Ozarks in 1920. The university alma mater was written in 1928 by Rev. John W. Laird, pastor of

5406-524: The New Administrative Capital and are hosting branches of Universities from abroad. The Knowledge Hub (TKH) and European Universities in Egypt (EUE) are among these institutions. The Ethiopian Orthodox Tewahedo Church doctrine embraces traditional higher institutions in Ethiopia . Modern higher education could be traced back to the regime of Emperor Haile Selassie , with the first university,

SECTION 50

#1733104166618

5512-523: The Private Universities Act, 1992 was instituted, consolidated, and re-enacted as the Private Universities Act, 2010 . All private universities must be approved by University Grants Commission (UGC) before they are given a permit to operate. As of April 2018, there were 97 private universities in Bangladesh . Private institutions must confer the students with external programs such as BDTVEC,

5618-696: The UGC (Establishment and Maintenance of Standards in Private Universities) Regulations, 2003 . Per the UGC act and these regulations, private universities are established by acts of state legislative assemblies and listed by the UGC in the Gazette upon receiving the relevant act. As confirmed by the ruling of the Supreme Court of India , recognition by the UGC is required for the university to operate. Also, per

5724-452: The $ 7 million Walker Hall, completed in 2002); and a stronger system of student recruitment, retention, and support. Niece, who was named the university's 24th president in 1997, stepped down on June 30, 2013, after 16 years of dedicated service and leadership at the helm of the Clarksville, Ark., campus. Only the presidencies of F.R. Earle (1858–1891) and Wiley Lin Hurie (1923–1949) lasted longer in

5830-716: The 2003 regulations, the UGC sends committees to inspect the private universities and publishes their inspection report. The UGC publishes and regularly updates the lists of private universities. As of 23 August 2022 , the UGC lists 421 private universities. As of 2010 , Japan had 597 private universities, 86 national universities , and 95 public universities . Private universities thus account for over 75% of all universities in Japan. A large number of junior colleges in Japan are private and like public and national universities, many private universities use National Center Test for University Admissions as an entrance exam . There

5936-450: The 21st century. However, since then, Ghana has seen a flood of private universities and colleges established – a reflection of the country's stable governance and the pace of economic growth. Most of these universities are not known to be sponsored by foreign corporate organizations or government universities and the aim is to avoid the Ghanaian government's excessive payment of bonds, which is

6042-501: The Auston Institute of Management, Singapore. The Sri Lanka campus was established in 2010 and is a Board of Investment or (BOI) company. It retains a similar focus to the home campus and occupies a prime spot along Colombo's famous Galle Road. In Taiwan , private universities are typically not as prestigious as some public (national) universities. They are not ranked as high as public institutions and cost nearly twice as much. This

6148-496: The Earth's history. Limestone may have been deposited by microorganisms in the Precambrian , prior to 540 million years ago, but inorganic processes were probably more important and likely took place in an ocean more highly oversaturated in calcium carbonate than the modern ocean. Diagenesis is the process in which sediments are compacted and turned into solid rock . During diagenesis of carbonate sediments, significant chemical and textural changes take place. For example, aragonite

6254-603: The Presbyterian Church of Rochester, New York. In 1875, the university became the first institution of higher education in Arkansas to admit women. In 1946, the university housed the state's first pharmacy school. During the years of World War II, the enrollment decreased to the point that the board of trustees decided to find a tenant for the facilities. From January 1944 through May 1945, the United States Navy leased

6360-644: The University College of Addis Ababa (now called the Addis Ababa University or AAU) formed in 1950. In 1954, the Haramaya University opened. As of 2022, there are 83 private universities, 42 public universities, and more than 35 institutions of higher learning. There are 16,305 students enrolled in higher education as a whole. There were a few private universities in Ghana before the beginning of

6466-631: The University Grant Commission (UGC), is the primary regulator of higher education in Pakistan . It also facilitates the development of the higher educational system in Pakistan. Its main purpose is to upgrade the schools to be world-class centers of education, research, and development. It also plays a leading role in building a knowledge-based economy in Pakistan by giving out hundreds of doctoral scholarships for education abroad every year. Despite

SECTION 60

#1733104166618

6572-645: The Walton Family Charitable Support Foundation. University of the Ozarks' 30-acre campus, sits at the top of College Hill on the north edge of Clarksville, Arkansas , a town with a population of about 10,000 in the Arkansas River Valley . The campus has a long history at its current location, dating back to 1891. In the years since the first cornerstone was laid on the site, the campus has undergone continued growth and improvement. There are now more than 20 buildings on campus, with

6678-430: The accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite , a closely related rock, which contains

6784-434: The base of roads, as white pigment or filler in products such as toothpaste or paint, as a soil conditioner , and as a popular decorative addition to rock gardens . Limestone formations contain about 30% of the world's petroleum reservoirs . Limestone is composed mostly of the minerals calcite and aragonite , which are different crystal forms of calcium carbonate ( CaCO 3 ). Dolomite , CaMg(CO 3 ) 2 ,

6890-657: The beds. This may include the formation of vugs , which are crystal-lined cavities within the limestone. Diagenesis may include conversion of limestone to dolomite by magnesium-rich fluids. There is considerable evidence of replacement of limestone by dolomite, including sharp replacement boundaries that cut across bedding. The process of dolomitization remains an area of active research, but possible mechanisms include exposure to concentrated brines in hot environments ( evaporative reflux ) or exposure to diluted seawater in delta or estuary environments ( Dorag dolomitization ). However, Dorag dolomitization has fallen into disfavor as

6996-546: The campus community in the chapel. It is also a popular wedding venue. The university celebrated the 75th anniversary of the chapel during a special ceremony during the 2008 Alumni Weekend. In 2014, the Raymond Munger Memorial Chapel at University of the Ozarks received a $ 2 million gift from Frances E. Wilson of Tulsa, Oklahoma, for a variety of renovations and improvements that would proceed until December 2015. The university's board of trustees formally accepted

7102-992: The college level. For an additional fee, students enrolled in the JLC receive a number of enhanced services designed to help them succeed in their college studies. Based on Fall 2018 Fact Sheet The University of the Ozarks Eagles are a member of the National Collegiate Athletic Association (NCAA) Division III and compete in the American Southwest Conference against schools from the states of Louisiana , Mississippi , and Texas . The university offers competition in baseball , men's and women's basketball , men's and women's cross country , men's and women's soccer , softball, and men's and women's tennis. In 2014, cheer & STUNT, wrestling, and men's and women's indoor and outdoor track were added. In 2016,

7208-480: The contrary, the Free University of Brussels (nowadays split into ULB and VUB ) was founded by masonic individuals. All of these institutions began to be recognized by the State from 1891 onwards. It is forbidden by law to call a fully private institution "university" or "faculty", meaning fully private (non- free ) 'universities' have limited visibility. Bulgaria has many private universities, among which

7314-517: The country, most notably the American University of Armenia and the Eurasia International University . In Austria , educational institutions must be authorized by the country to legally grant academic degrees . All state-run universities are governed by the 2002 Austrian Universities' and University Degree Programmes' Organisation Act (Federal Law Gazette No. 120/2002). In 1999, a federal law ( Universitäts-Akkreditierungsgesetz )

7420-552: The criticism of the HEC, its creation had a positive impact on higher education in Pakistan. Its two-year report for 2004 to 2006 states that according to the Institute of Scientific Information, the total number of publications appearing in the 8,000 leading journals indexed in the Web of Science arising out of Pakistan in 2005 was 1,259 articles, representing a 41% increase over the past two years and

7526-462: The depositional fabric of carbonate rocks. Dunham divides the rocks into four main groups based on relative proportions of coarser clastic particles, based on criteria such as whether the grains were originally in mutual contact, and therefore self-supporting, or whether the rock is characterized by the presence of frame builders and algal mats. Unlike the Folk scheme, Dunham deals with the original porosity of

7632-469: The deposits are highly porous, so that they have a spongelike texture, they are typically described as tufa . Secondary calcite deposited by supersaturated meteoric waters ( groundwater ) in caves is also sometimes described as travertine. This produces speleothems , such as stalagmites and stalactites . Coquina is a poorly consolidated limestone composed of abraded pieces of coral , shells , or other fossil debris. When better consolidated, it

7738-406: The earth's oceans are oversaturated with CaCO 3 by a factor of more than six. The failure of CaCO 3 to rapidly precipitate out of these waters is likely due to interference by dissolved magnesium ions with nucleation of calcite crystals, the necessary first step in precipitation. Precipitation of aragonite may be suppressed by the presence of naturally occurring organic phosphates in

7844-489: The first predominately white university in Arkansas to integrate, and in 1959 the first to graduate an African-American, more than 7 years before any others. In 1963 Ozarks athlete Sylvester Benson became the first African-American to compete in the Arkansas Intercollegiate Conference . In 1987, the name was changed to University of the Ozarks . The university enrollment has increased significantly since

7950-399: The first refers to the grains and the second to the cement. For example, a limestone consisting mainly of ooids, with a crystalline matrix, would be termed an oosparite. It is helpful to have a petrographic microscope when using the Folk scheme, because it is easier to determine the components present in each sample. Robert J. Dunham published his system for limestone in 1962. It focuses on

8056-529: The first to gain degree awarding status was Hajvery University, Lahore (HU), established in 1990. From 2003–2004, Pakistan had a total of 83 private degree granting institutions. There are nine private universities in Saudi Arabia . In Sri Lanka , state-recognized private institutes are allowed to award degrees under Section 25A of the Universities Act No. 16 of 1978. The University Grants Commission

8162-572: The formation of distinctive minerals from the silica and clay present in the original limestone. Two major classification schemes, the Folk and Dunham, are used for identifying the types of carbonate rocks collectively known as limestone. Robert L. Folk developed a classification system that places primary emphasis on the detailed composition of grains and interstitial material in carbonate rocks . Based on composition, there are three main components: allochems (grains), matrix (mostly micrite), and cement (sparite). The Folk system uses two-part names;

8268-473: The full campus for operating a Primary School in their Electronics Training Program . An estimated total of 3,000 Navy and Marine servicemen were trained in the three-month course. In this period, classes for the 150 College of the Ozarks students were held off-campus at the First Presbyterian Church; female students were mainly housed in the church's adjoining Manse. In 1957, the university became

8374-429: The geologic record are called bioherms . Many are rich in fossils, but most lack any connected organic framework like that seen in modern reefs. The fossil remains are present as separate fragments embedded in ample mud matrix. Much of the sedimentation shows indications of occurring in the intertidal or supratidal zones, suggesting sediments rapidly fill available accommodation space in the shelf or platform. Deposition

8480-468: The gift at its Spring Board Meeting on April 26, 2014. Wilson made the gift to the university in memory of her late husband, Thomas D. Wilson. In accepting the gift, the board unanimously voted to express its appreciation to Wilson by renaming the building Munger-Wilson Memorial Chapel. The sanctuary and exterior of the Chapel underwent a great deal of restoration and replacement of structural elements to preserve

8586-474: The historic look and spiritual feel of what is an iconic landmark in this area. Wiley Lin Hurie served as president of the university during its early days in Clarksville. Hurie led a number of important initiatives during his tenure as president, including the drive to join the North Central Association of Colleges and universities. During the presidency of Wiley Lin Hurie (1923–1949), Ozarks gained

8692-616: The largest awarding body in the country, BTEC , and Cambridge International Examinations pathways. Accreditation by the Brunei Darussalam National Accreditation Council (BDNAC) is crucial to establish a private institution. Private universities have been established in Cambodia since 1997. Since 2003, joint-partnership private universities have been established in the People's Republic of China (PRC). Typically,

8798-489: The mid-1990s, and the number of full-time faculty has been increased from 32 to 48. During the past decade, the university's supporters helped increase the school's endowment by 284 percent, contributing more than $ 100 million for academic programs, scholarships, faculty and staff benefits, and facilities. In 1998, U of O received the largest single monetary donation ever made to a private university in Arkansas: $ 39.5 million from

8904-477: The most renowned are New Bulgarian University , located in the capital city Sofia ; Burgas Free University ; Varna Free University and American University in Bulgaria . Finland does not officially recognize private universities but does not explicitly forbid them either. Helsinki School of Business is an example of one such educational institution operating in this market. Since 1880, it has been illegal for

9010-410: The ocean basins, but limestone is rarely preserved in continental slope and deep sea environments. The best environments for deposition are warm waters, which have both a high organic productivity and increased saturation of calcium carbonate due to lower concentrations of dissolved carbon dioxide. Modern limestone deposits are almost always in areas with very little silica-rich sedimentation, reflected in

9116-742: The partners may include a Chinese university and a non-Chinese institution. English is often the only language of instruction at such universities and many focus on providing a comprehensive liberal arts education modeled after research universities in the United States and Europe. Universities in India are recognized by the University Grants Commission (UGC), which draws its power from the University Grants Commission Act, 1956 . Private universities in India are regulated under

9222-426: The reaction: Fossils are often preserved in exquisite detail as chert. Cementing takes place rapidly in carbonate sediments, typically within less than a million years of deposition. Some cementing occurs while the sediments are still under water, forming hardgrounds . Cementing accelerates after the retreat of the sea from the depositional environment, as rainwater infiltrates the sediment beds, often within just

9328-637: The recent discovery of oil and gas in commercial quantities has influenced the development of oil and gas management courses within the private universities' curricula. Libya has several recognized private education institutions and universities that have been approved by the Ministry of Higher Education. They are ranked and qualified to specialize in academic programs in Business Administration, Computer Science, Law, Medicine, and Humanitarianism. The National Universities Commission of Nigeria holds

9434-482: The relative purity of most limestones. Reef organisms are destroyed by muddy, brackish river water, and carbonate grains are ground down by much harder silicate grains. Unlike clastic sedimentary rock, limestone is produced almost entirely from sediments originating at or near the place of deposition. Limestone formations tend to show abrupt changes in thickness. Large moundlike features in a limestone formation are interpreted as ancient reefs , which when they appear in

9540-785: The responsibility to approve private universities and accredit their courses. This ensures a minimum standard in curriculum and teaching. There are currently 60 approved private universities in Nigeria and many applications are being processed. In South Africa , there are many distinctions between public universities and what are officially termed private higher education institutions. Recognized private higher education institutions include Akademia ( af ), Regent Business School , Eduvos , Varsity College , Vega School , Milpark , Midrand Graduate Institute , and Regenesys Business School . Numerous private universities were established in Bangladesh after

9646-460: The rock. The Dunham scheme is more useful for hand samples because it is based on texture, not the grains in the sample. A revised classification was proposed by Wright (1992). It adds some diagenetic patterns to the classification scheme. Travertine is a term applied to calcium carbonate deposits formed in freshwater environments, particularly waterfalls , cascades and hot springs . Such deposits are typically massive, dense, and banded. When

9752-428: The same privileges including social security, foreign law, and state scholarships as students at state universities. Educational services of private universities are not subject to value added tax , and donations are tax-deductible. Accreditations must be renewed regularly and can be withdrawn, e.g., in the case of repeated academic misconduct as happened in 2003 when the accreditation of International University Vienna

9858-479: The sediments increases. Chemical compaction takes place by pressure solution of the sediments. This process dissolves minerals from points of contact between grains and redeposits it in pore space, reducing the porosity of the limestone from an initial high value of 40% to 80% to less than 10%. Pressure solution produces distinctive stylolites , irregular surfaces within the limestone at which silica-rich sediments accumulate. These may reflect dissolution and loss of

9964-662: The sediments of the ocean floor abruptly transition from carbonate ooze rich in foraminifera and coccolith remains ( Globigerina ooze) to silicic mud lacking carbonates. In rare cases, turbidites or other silica-rich sediments bury and preserve benthic (deep ocean) carbonate deposits. Ancient benthic limestones are microcrystalline and are identified by their tectonic setting. Fossils typically are foraminifera and coccoliths. No pre-Jurassic benthic limestones are known, probably because carbonate-shelled plankton had not yet evolved. Limestones also form in freshwater environments. These limestones are not unlike marine limestone, but have

10070-677: The student-teacher ratio is typically lower and there are more opportunities for hands-on learning. Additionally, private universities in Oman often have more flexible curriculums and can respond quickly to changing labor markets and global trends.   All private universities in Oman must be recognized by the Omani Ministry of Higher Education to offer degree programs and receive approval for new degrees. The Ministry has procedures and standards that all universities must meet to receive accreditation and recognition as an institution of higher education. The Higher Education Commission (HEC), formerly

10176-403: The study (some of these institutes are state-funded institutions of their home countries) and these charges are often a fraction of the cost of studying in the home countries of these institutions. Efforts to establish private universities have been blocked due to protests from state universities' undergraduates and leftist political parties. Many private colleges have sprung up since, including

10282-595: The ten major buildings arranged around a central mall which features a picturesque fountain. The large trees and the classically styled buildings combine to give the campus a distinctive look. MacLean Hall is a residence hall that is home to up 221 residents (sophomores, juniors, and seniors). It was constructed in 1927 and underwent a $ 10 million renovation in 2019 that included a fire sprinkler system, new central heat and air systems, an elevator, and new mechanical, electrical and plumbing components as well as additional common areas and laundry facilities. In 2017, MacLean Hall

10388-721: The term "university" as opposed to "private university" in their advertisements in all languages except German while still complying with Austrian law. While the legal definition of "private university" prohibits funding by the federal government of Austria, funding by other public bodies is not prohibited. Consequently, some of Austria's private universities are partly or wholly funded by provincial governments, while others are fully privately funded. Accreditation of private universities began in 2001. As of 2020 , Austria has 16 private universities. Most are small (fewer than 1000 students) and specialize in only one or two fields of study. Four former private universities are not accredited anymore:

10494-730: The university added men's and women's swimming . The Eagles competed in the Arkansas Intercollegiate Conference of the National Association of Intercollegiate Athletics (NAIA) from 1947 to 1995. Private university Across the world, different countries have different regulations regarding accreditation for private universities and as such, private universities are more common in some countries than in others. Some countries do not have any private universities at all. Egypt currently has 21 public universities with about two million students and 23 private universities with 60,000 students. Egypt has many private universities including

10600-471: The university's 182-year history. The University of the Ozarks Board of Trustees elected Richard L. "Rich" Dunsworth, J.D., as the university's 25th president, which was effective July 1, 2013. University of the Ozarks offers more than 60 programs of study, along with several pre-professional sequences. The curriculum is based on a liberal arts approach, while also offering strong professional preparation in

10706-533: The water by photosynthesis and thereby decreasing the solubility of calcium carbonate. Limestone shows the same range of sedimentary structures found in other sedimentary rocks. However, finer structures, such as lamination , are often destroyed by the burrowing activities of organisms ( bioturbation ). Fine lamination is characteristic of limestone formed in playa lakes , which lack the burrowing organisms. Limestones also show distinctive features such as geopetal structures , which form when curved shells settle to

10812-553: The water. Although ooids likely form through purely inorganic processes, the bulk of CaCO 3 precipitation in the oceans is the result of biological activity. Much of this takes place on carbonate platforms . The origin of carbonate mud, and the processes by which it is converted to micrite, continue to be a subject of research. Modern carbonate mud is composed mostly of aragonite needles around 5 μm (0.20 mils) in length. Needles of this shape and composition are produced by calcareous algae such as Penicillus , making this

10918-464: Was added to the National Register of Historic Places. One of the main landmarks of the university is the Raymond Munger Memorial Chapel, erected in 1933. The chapel was built with one of the single largest donations ever received by the college at the time, a $ 75,000 gift from Miss Jesse Munger of Plainfield, N.J. Munger donated the money to build the chapel in memory of her father, Raymond Munger,

11024-416: Was likely deposited in pore space between grains, suggesting a high-energy depositional environment that removed carbonate mud. Recrystallized sparite is not diagnostic of depositional environment. Limestone outcrops are recognized in the field by their softness (calcite and aragonite both have a Mohs hardness of less than 4, well below common silicate minerals) and because limestone bubbles vigorously when

11130-603: Was passed to allow the accreditation of private universities. The Akkreditierungsrat (Accreditation Council) evaluates applicants and issues recommendations to the responsible Austrian accreditation authority (the Austrian Federal Ministry of Science & Research). Accreditation by the council yields a couple of privileges: degrees issued by accredited private universities have the same legal status as those issued by state-run universities. Private universities can appoint or promote professors . Their students enjoy

11236-527: Was withdrawn. In 2006, when the accreditation of Imadec University expired, the Accreditation Council rejected any renewal requests. Austrian law provides that private universities in Austria must use the term Privatuniversität ("private university") in their German names, although their formal names in other languages are not regulated. Thus, there is the possibility of private institutions employing

#617382