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Louis V. Pirsson
Louis Valentine Pirsson (November 3, 1860 – December 8, 1919) was an American geologist and petrologist, best known for devising (with collaborators Charles Whitman Cross, Joseph Paxson Iddings, and Henry S. Washington) the CIPW norm for classifying igneous rocks. (He is the P in CIPW.) His 1915 ''Textbook of Geology'' was for decades the most widely used in the United States. Biography Pirsson was born in Fordham, New York, to parents Francis Morris Pirsson and Louise M. (nee Butt) Pirsson. His mother died when he was four, and he was left in the care of cousins. When his foster parents left in 1869 for a journey lasting several years, the boy was left with a minister, from whom he received a classical education in mathematics, geography, Latin and ancient Greek. During this time he developed an interest in the natural sciences, particularly ornithology. From the age of 16 he attended a boarding school in Amenia, New York, whose principal was a Yale graduate. He was encoura ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fordham, New York
Fordham Manor is a neighborhood located in the western Bronx, New York City. Fordham is roughly bordered by East 196th Street to the north, the Harlem River to the west, Fordham Road to the south, and Southern Boulevard to the east. The neighborhood's primary thoroughfares are Fordham Road and Grand Concourse. Fordham Manor is located within Bronx Community Board 5 and Bronx Community Board 7, and its ZIP Codes include 10453, 10457, 10458 and 10468. Its main subway line is the IND Concourse Line (), operating under the Grand Concourse, with the IRT Jerome Avenue Line () on its western border. The area is patrolled by the New York City Police Department's 46th Precinct. New York City Housing Authority (NYCHA) property in the area is patrolled by P.S.A. 7 at 737 Melrose Avenue in the Melrose section of the Bronx. The neighborhood is home to the original, Rose Hill campus of Fordham University. History Jan Arcer, a Dutch settler (who anglicized his name to John Archer), e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Geological Survey
The United States Geological Survey (USGS), founded as the Geological Survey, is an agency of the U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The agency also makes maps of planets and moons, based on data from U.S. space probes. The sole scientific agency of the U.S. Department of the Interior, USGS is a fact-finding research organization with no regulatory responsibility. It is headquartered in Reston, Virginia, with major offices near Lakewood, Colorado; at the Denver Federal Center; and in NASA Research Park in California. In 2009, it employed about 8,670 people. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on its hundredth anniversary, was "Earth Science in the Pub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Boston Globe
''The Boston Globe,'' also known locally as ''the Globe'', is an American daily newspaper founded and based in Boston, Massachusetts. The newspaper has won a total of 27 Pulitzer Prizes. ''The Boston Globe'' is the oldest and largest daily newspaper in Boston and tenth-largest newspaper by print circulation in the nation as of 2023. Founded in 1872, the paper was mainly controlled by Irish Catholic interests before being sold to Charles H. Taylor and his family. After being privately held until 1973, it was sold to ''The New York Times'' in 1993 for $1.1billion, making it one of the most expensive print purchases in United States history. The newspaper was purchased in 2013 by Boston Red Sox and Liverpool F.C. owner John W. Henry for $70million from The New York Times Company, having lost over 90% of its value in 20 years. The chief print rival of ''The Boston Globe'' is the '' Boston Herald'', whose circulation is smaller and is shrinking faster. The newspaper is "one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shonkinite
Shonkinite is an intrusive igneous rock found in few places in the world. It is unique in having low silica, feldspathoid minerals, and large blocky crystals of black augite. It makes up much of the hard dark grey rock comprising certain mountains and buttes in Montana that are remnants of laccoliths and stocks, such as the Highwood mountains. Composition Shonkinite is an intrusive igneous rock. More specifically, it is a mafic foidal (feldspathoid bearing) syenite, a holocrystalline (completely crystalline) intrusive rock which, , is composed of potassic feldspar (in the form of sanidine), with nepheline, augite, biotite, and olivine. Shonkinite is also used for mafic nepheline syenite with aegerine-augite as the pyroxene, and with the addition of plagioclase (andesine to labradorite). Nepheline in shonkinite from the is largely altered to natrolite and stilbite. The close view of the rocks in the Adel mountains show large glossy crystals of augite in a dark grey matrix made ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Lacroix
Antoine François Alfred Lacroix (4 February 186312 March 1948), known as Alfred Lacroix, was a French mineralogist and geologist. He was born in Mâcon, Saône-et-Loire. Education Alfred Lacroix completed a D. s Sc. in Paris in 1889, as student of Ferdinand André Fouqué. Fouqué only agreed to the graduation if Lacroix would marry his daughter. Career In 1893, Alfred Lacroix was appointed professor of mineralogy at the Jardin des Plantes, Paris, and in 1896 director of the mineralogical laboratory in the École des Hautes Études. He paid especial attention to minerals connected with volcanic phenomena and igneous rocks, to the effects of metamorphism, and to mineral veins, in various parts of the world, notably in the Pyrenees. In his numerous contributions to scientific journals he dealt with the mineralogy and petrology of Madagascar, and published an elaborate and exhaustive volume on the eruptions in Martinique, ''La Montagne Pelée et ses éruptions'' (Paris 1904) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of cities in the European Union by population within city limits, fourth-most populous city in the European Union and the List of cities proper by population density, 30th most densely populated city in the world in 2022. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, culture, Fashion capital, fashion, and gastronomy. Because of its leading role in the French art, arts and Science and technology in France, sciences and its early adoption of extensive street lighting, Paris became known as the City of Light in the 19th century. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an official estimated population of 12,271,794 inhabitants in January 2023, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Heinrich Rosenbusch
(Karl) Heinrich/Harry (Ferdinand) Rosenbusch (24 June 1836 – 20 January 1914) was a German petrographer. Harry Rosenbusch was born in Einbeck. He taught at Heidelberg University (1877–1908), where he founded the ''Mineralogisches-geologisches Institut''. He died, aged 77, in Heidelberg. He received the 1903 Wollaston Medal from the Geological Society of London The Geological Society of London, known commonly as the Geological Society, is a learned society based in the United Kingdom. It is the oldest national geological society in the world and the largest in Europe, with more than 12,000 Fellows. Fe .... Literary works * ''Mikroskopische Physiographie der petrographisch wichtigen Mineralien'', 1873 * ''Mikroskopische Physiographie der Mineralien und Gesteine'', 4 Vols., 1873-1877 * ''Elemente der Gesteinslehre'', 1898 * ''Mikroskopische Physiographie'' (4th ed., Stuttgart, 1909, 2 vols.) References External links * — He is mention a number of times in the ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heidelberg
Heidelberg (; ; ) is the List of cities in Baden-Württemberg by population, fifth-largest city in the States of Germany, German state of Baden-Württemberg, and with a population of about 163,000, of which roughly a quarter consists of students, it is List of cities in Germany by population, Germany's 51st-largest city. Located about south of Frankfurt, Heidelberg is part of the densely populated Rhine-Neckar, Rhine-Neckar Metropolitan Region which has its centre in Mannheim. Heidelberg is located on the Neckar River, at the point where it leaves its narrow valley between the Oden Forest and the Kleiner Odenwald, Little Oden Forest, and enters the wide Upper Rhine Plain. The old town lies in the valley, the end of which is flanked by the Königstuhl (Odenwald), Königstuhl in the south and the Heiligenberg (Heidelberg), Heiligenberg in the north. The majority of the population lives in the districts west of the mountains in the Upper Rhine Plain, into which the city has expan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montana
Montana ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Idaho to the west, North Dakota to the east, South Dakota to the southeast, Wyoming to the south, and the Provinces and territories of Canada, Canadian provinces of Alberta, British Columbia, and Saskatchewan to the north. It is the List of U.S. states and territories by area, fourth-largest state by area, but the List of U.S. states and territories by population, eighth-least populous state and the List of U.S. states and territories by population density, third-least densely populated state. Its List of capitals in the United States, capital is Helena, Montana, Helena, while the List of municipalities in Montana, most populous city is Billings, Montana, Billings. The western half of the state contains numerous mountain ranges, while the eastern half is characterized by western prairie terrain and badlands, with smaller mountain ranges f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mordenite
Mordenite is a zeolite mineral with the chemical formula . and it is one of the six most abundant zeolites and is used commercially. It was first described in 1864 by Henry How. He named it after the small community of Morden, Nova Scotia, Canada, along the Bay of Fundy, where it was first found. Mordenite is orthorhombic (a,b,c unequal & all angles 90 degree). It crystallizes in the form of fibrous aggregates, masses, and vertically striated prismatic crystals. It may be colorless, white, or faintly yellow or pink. It has Mohs hardness of 5 and a density of 2.1 g/cm3. When it forms well developed crystals they are hairlike; very long, thin, and delicate. Mordenite’s molecular structure is a framework containing chains of five-membered rings of linked silicate and aluminate tetrahedra (four oxygen atoms arranged at the points of a triangular pyramid about a central silicon or aluminium atom). Its high ratio of silicon to aluminum atoms makes it more resistant to attack b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Lewis Penfield
Samuel Lewis Penfield (January 16, 1856 – August 12, 1906) was an American analytic chemist, mineralogist, and crystallographer who first obtained the chemical structures of more than two dozen naturally occurring minerals."Samuel Lewis Penfield", Science, vol. 24, issue 608, p. 252 (August, 1906) Biography Penfield prepared for college at the Catskill Academy and the academy at Wilbraham, Massachusetts. He matriculated at Yale in the Sheffield Scientific School in 1873, graduating with honors in 1877 and becoming a scientific assistant in chemistry and in mineralology. Except for brief periods abroad, in Germany (where he trained in crystallography), his entire subsequent career was to be at Yale. In early work, He analyzed the then-new so-called Branchville phosphates, fairfieldite and fillowite, as well as samples of chabazite and rhodocrosite from the same locality. He was soon known as expert in analyzing minerals containing fluorine. Penfield became assistant professo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crystallography
Crystallography is the branch of science devoted to the study of molecular and crystalline structure and properties. The word ''crystallography'' is derived from the Ancient Greek word (; "clear ice, rock-crystal"), and (; "to write"). In July 2012, the United Nations recognised the importance of the science of crystallography by proclaiming 2014 the International Year of Crystallography.UN announcement "International Year of Crystallography" iycr2014.org. 12 July 2012 Crystallography is a broad topic, and many of its subareas, such as X-ray crystallography, are themselves important scientific topics. Crystallography ranges from the fundamentals of crystal structure to the mathematics of Crystal system, crystal geometry, including those that are Aperiodic crystal, not periodic or quasi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
