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Arthur Lewis Hall
Arthur Lewis Hall FRS (10 January 1872 – 13 August 1955) was a British geologist, who worked in South Africa for most of his career. He was awarded the Murchison Medal of the Geological Society of London in 1930 for his work on the Bushveld Igneous Complex, and elected to the Royal Society in 1935. Early life and education Hall was born in Birmingham, to William Hall and Mary Ann (née Smith). At an early age he moved to Germany. He went to school in Freiburg, Bonn, Schwehn, Westphalia and finally to the Real Gymnasium, Kassel. At the age of 19 he won a scholarship to study at University College, Bristol. In 1896, Hall went to Gonville and Caius College, Cambridge, and graduated with first class honours in geology in 1899. That summer he went to Wales to learn geological surveying with Philip Lake, a physical geographer who was later a lecturer in Cambridge. Hall then spent two terms in Cambridge as assistant demonstrator in mineralogy, working for the professor of mineralogy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fellows Of The Royal Society
Fellowship of the Royal Society (FRS, ForMemRS and HonFRS) is an award granted by the Fellows of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural science, natural knowledge, including mathematics, engineering science, and medical science". Overview Fellowship of the Society, the oldest known scientific academy in continuous existence, is a significant honour. It has been awarded to :Fellows of the Royal Society, around 8,000 fellows, including eminent scientists Isaac Newton (1672), Benjamin Franklin (1756), Charles Babbage (1816), Michael Faraday (1824), Charles Darwin (1839), Ernest Rutherford (1903), Srinivasa Ramanujan (1918), Jagadish Chandra Bose (1920), Albert Einstein (1921), Paul Dirac (1930), Subrahmanyan Chandrasekhar (1944), Prasanta Chandra Mahalanobis (1945), Dorothy Hodgkin (1947), Alan Turing (1951), Lise Meitner (1955), Satyendra Nath Bose (1958), and Francis Crick (1959). More recently, fellow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mineralogy
Mineralogy is a subject of geology specializing in the scientific study of the chemistry, crystal structure, and physical (including optical mineralogy, optical) properties of minerals and mineralized artifact (archaeology), artifacts. Specific studies within mineralogy include the processes of mineral origin and formation, classification of minerals, their geographical distribution, as well as their utilization. History Early writing on mineralogy, especially on gemstones, comes from ancient Babylonia, the ancient Greco-Roman world, ancient and medieval History of China, China, and Sanskrit texts from History of India, ancient India and the ancient Islamic world. Books on the subject included the ''Naturalis Historia, Natural History'' of Pliny the Elder, which not only described many different minerals but also explained many of their properties, and Kitab al Jawahir (Book of Precious Stones) by Persian scientist Al-Biruni. The German Renaissance specialist Georgius Agricola ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Owen Thomas Jones
Owen Thomas Jones, FRS FGS (16 April 1878 – 5 May 1967) was a Welsh geologist. Education He was born in Beulah, near Newcastle Emlyn, Cardiganshire, the only son of David Jones and Margaret Thomas. He attended the local village school in Trewen before going to Pencader Grammar School in 1893. In 1896 he went up to University College, Aberystwyth, to study physics, graduating in 1900. He then went to Trinity College, Cambridge, and was awarded a B.A. degree in Natural Sciences (geology) in 1902. Career In 1903 he joined the British Geological Survey, working near his home in Carmarthenshire and Pembrokeshire. In 1910 he was appointed the first professor of geology in Aberystwyth. In 1913 he became professor of geology at the University of Manchester, and then, in 1930, Woodwardian Professor of Geology at the University of Cambridge (until 1943). He dedicated his working life to the study of Welsh geology. Awards and honours In 1926 he was elected a Fellow of the Royal Society ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur William Rogers
Arthur William Rogers (5 June 1872 in Bishops Hull near Taunton, Somerset – 23 June 1946 in Mowbray, Cape Town, Cape Province) was a British and South African geologist. He was Director of the Geological Survey of South Africa. Career Rogers studied at the University of Cambridge. From 1895 he was in South Africa, first in 1896–1902 as Assistant Geologist, from 1902–1911 as Geologist, and from 1911–1916 as Assistant Director of the Cape of Good Hope Geological Commission. In 1916 in Pretoria he became Director of the Geological Survey of South Africa, in which capacity he remained until his retirement in 1932. During his directorship, the International Congress of Geologists met in South Africa in 1929. Initially, under the direction of Professor E. H. L. Schwarz, Rogers charted remote regions of the Cape Province to the borders of the Kalahari. In the Transvaal, he mapped the gold fields of Heidelberg and Klerksdorp. In 1931 he received the Wollaston Medal of the Geologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederick Eugene Wright
Frederick Eugene Wright (October 16, 1877 – August 25, 1953) was an American optical scientist and geophysicist. He was the second president of the Optical Society of America from 1918-1919. Biography He was born in Marquette, Michigan, and his father was a state geologist. In 1895 his mother took Frederick and his two brothers to Germany where he would complete his education. He was awarded his Ph.D. ''summa cum laude'' from the University of Heidelberg. After returning to the United States, he taught at the ''Michigan College of Mines'' and became the Assistant State Geologist. He moved to Washington D.C. in 1904, joining the United States Geological Survey. He then spent some time in exploration of Alaska. In 1906 he joined the Carnegie Institution as a member of their Geophysical Laboratory. He remained on the staff until his retirement in 1944. In 1906, he met Kathleen Finley and in 1909 they were married. Their daughter, Mary Helen Wright Greuter (1914–1997), became ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Palache
Charles Palache (July 18, 1869 – December 5, 1954) was an American mineralogist and crystallographer. In his time, he was one of the most important mineralogists in the United States. Background Charles Palache came from the Pallache family of Sephardic Jews. His grandfather, John Palache, had a plantation in Jamaica. His father, James Palache, was born in New York and moved to San Francisco as a merchant. His mother was Helen Whitney. His memorial at the National Academy of Sciences reports: For political reasons he ohn Palacheabandoned that home in 1834, and put his wife and three daughters on a ship sailing for New York, but he died before he could follow them on the next boat. Three months later Charles Palache's father, James, was born in New York City. At the age of fifteen, James acted as cabin boy on a schooner rounding Cape Horn and in 1849 landed in San Francisco, his home henceforth. Palache attended Berkeley High School. He became interested early on in nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reginald Daly
Reginald Aldworth Daly (May 19, 1871 – September 19, 1957) was a Canadian geologist. He is best known for being one of the first proponents of the giant-impact hypothesis of the formation of the Moon. Biography Reginald Daly was educated at the University of Toronto, where geologist A.P. Coleman persuaded him away from teaching mathematics and into Earth Sciences. He obtained his PhD at Harvard, and did postgraduate work in Germany and France. After working as a field geologist for the International Boundary Commission, he was a professor, and headed the Department of Geology at Harvard University from 1912 until 1942. Daly was president of The Geological Society of America in 1932. For the Boundary Commission, working in six field seasons, Daly mapped the border from the Pacific Ocean to the Great Plains, a rugged swath long and wide – an area of about . He documented the geology alone, but had the help of one field assistant and numerous wranglers and porters. He collecte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustaaf Adolf Frederik Molengraaff
Gustaaf Adolf Frederik Molengraaff (27 February 1860 – 26 March 1942) was a Dutch geologist, biologist and explorer. He became an authority on the geology of South Africa and the Dutch East Indies. Gustaaf Molengraaff studied mathematics and physics at Leiden University. From 1882 he studied at Utrecht University. As a student he made his first journey overseas when he joined the 1884–1885 expedition to the Dutch Antilles led by Willem Frederik Reinier Suringar and Karl Martin. He became PhD with a thesis on the geology of Sint Eustatius. He studied crystallography in Munich, where he also took the opportunity to study the geology of the Alps nearby. In 1888 Molengraaff took a job as a teacher at the University of Amsterdam. Before his assignment courses in geology were given by the chemist Jacobus Henricus van 't Hoff. During his assignment in Amsterdam, Molengraaff travelled to South Africa to study gold deposits (1891) and to Borneo (1894) where he explored large ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transvaal Province
The Province of Transvaal (), commonly referred to as the Transvaal (; ), was a province of South Africa from 1910 until 1994, when a new constitution subdivided it following the end of apartheid. The name "Transvaal" refers to the province's geographical location to the north of the Vaal River. Its capital was Pretoria, which was also the country's executive capital. History In 1910, four British colonies united to form the Union of South Africa. The Transvaal Colony, which had been formed out of the bulk of the old South African Republic after the Second Boer War, became the Transvaal Province in the new union. Half a century later, in 1961, the union ceased to be part of the Commonwealth of Nations and became the Republic of South Africa. The PWV (Pretoria- Witwatersrand- Vereeniging) conurbation in the Transvaal, centred on Pretoria and Johannesburg, became South Africa's economic powerhouse, a position it still holds today as Gauteng Province. In 1994, after the fall o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barberton Greenstone Belt
The Barberton Greenstone Belt is a geologic formation situated on the eastern edge of the Kaapvaal craton in South Africa. It is known for its gold mineralisation and for its komatiites, an unusual type of ultramafic volcanic rock named after the Komati River that flows through the belt. Some of the oldest exposed rocks on Earth (greater than 3.6 Ga) are located in the Barberton Greenstone Belt of the Eswatini–Barberton areas and these contain some of the oldest traces of life on Earth, second only to the Isua Greenstone Belt of Western Greenland. The Makhonjwa Mountains make up 40% of the Baberton belt. It is named after the town Barberton, Mpumalanga. History and description The Barberton Greenstone Belt consists of a sequence of mafic to ultramafic lavas and metasedimentary rocks emplaced and deposited between 3.5 and 3.2 Ga. The granitoid rocks were emplaced over a 500-million-year time span and can be divided into two suites: The tonalite-trondhjemite-granodiorite (TT ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magma
Magma () is the molten or semi-molten natural material from which all igneous rocks are formed. Magma (sometimes colloquially but incorrectly referred to as ''lava'') is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natural satellites. Besides molten rock, magma may also contain suspended crystals and volcanic gas, gas bubbles. Magma is produced by melting of the mantle (geology), mantle or the Crust (geology), crust in various tectonics, tectonic settings, which on Earth include subduction zones, continental rift (geology), rift zones, mid-ocean ridges and Hotspot (geology), hotspots. Mantle and crustal melts migrate upwards through the crust where they are thought to be stored in magma chambers or trans-crustal crystal mush, crystal-rich mush zones. During magma's storage in the crust, its composition may be modified by Fractional crystallization (geology), fractional crystallization, contaminati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Layered Intrusion
A layered intrusion is a large sill-like body of igneous rock which exhibits vertical layering or differences in composition and texture. These intrusions can be many kilometres in area covering from around to over and several hundred metres to over in thickness.Blatt, Harvey and Tracy, Robert J. (1996) ''Petrology: Igneous, Sedimentary and Metamorphic,'' 2nd ed., pp. 123–132 & 194–197, Freeman, While most layered intrusions are Archean to Proterozoic in age (for example, the Paleoproterozoic Bushveld complex), they may be any age such as the Cenozoic Skaergaard intrusion of east Greenland or the Rum layered intrusion in Scotland. Although most are ultramafic to mafic in composition, the Ilimaussaq intrusive complex of Greenland is an alkalic intrusion. Layered intrusions are typically found in ancient cratons and are rare but worldwide in distribution. The intrusive complexes exhibit evidence of fractional crystallization and crystal segregation by settling or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
