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Samuel James Shand
Prof Samuel James Shand (1882–1957) was a British mineralogist and petrologist, specialising in silicate analysis and igneous petrology. Life He was born in Edinburgh on 29 October 1882 the son of James Shand (1851–1929), originally from Sandsting in Shetland, and Catherine Grant Hunter from Lerwick in Shetland. In 1881 the family had moved from Shetland to Taap Hall, a curious Georgian tenement on Ferry Road in the Leith district. However they moved to "Selivoe" on Park Road in the Newhaven district and James was born there. Shand received his secondary education at George Watson's College, Edinburgh, and then in 1905 received his BSc in science from University College, Dundee, which from 1897 to 1967 was part of the University of St Andrews. He then became a graduate student at the University of Münster and received a PhD (Promotion) there in 1906 with thesis advisor . Upon Shand's return to Scotland, he became an assistant curator in charge of the geological collection ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broughty Ferry
Broughty Ferry (; Scottish Gaelic: ''Bruach Tatha''; Scots: ''Brochtie'') is a suburb of Dundee, Scotland. It is situated four miles east of the city centre on the north bank of the Firth of Tay. The area was a separate burgh from 1864 until 1913, when it was incorporated into Dundee. Historically it is within the County of Angus. Formerly a prosperous fishing and whaling village, in the 19th century Broughty Ferry became a haven for wealthy jute barons, who built their luxury villas in the suburb. As a result, Broughty Ferry was referred to at the time as the "richest square mile in Europe". It is administered as part of the Dundee City council area. At a national level, it is represented by both the UK Parliamentary constituency of Dundee East and the Scottish Parliamentary constituency of Dundee City East. Several road and rail routes are located within the area; Broughty Ferry railway station is situated in the centre of the suburb, and the A930 road skirts its main ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudotachylyte
Pseudotachylyte (sometimes written as pseudotachylite) is an extremely fine-grained to glassy, dark, cohesive rock occurring as veinsTrouw, R.A.J., C.W. Passchier, and D.J. Wiersma (2010) ''Atlas of Mylonites- and related microstructures.'' Springer-Verlag, Berlin, Germany. 322 pp. that form through frictional melting and subsequent quenching during earthquakes, large-scale landslides, and impacts events. Chemical composition of pseudotachylyte generally reflects the local bulk chemistry, though may skew to slightly more mafic compositions due to the preferential incorporation of hydrous and ferro-magnesian minerals (mica and amphibole, respectively) into the melt phase. Pseudotachylyte was first documented by Shand in the Vredefort Impact Structure and was named due to its close resemblance to tachylyte, a basaltic glass. Though pseudotachylyte is reported to have a glassy appearance, they are extremely susceptible to alteration and are thus rarely found to be entirely composed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Ramdohr
Paul A. Ramdohr (1 January 1890 in Überlingen – 8 March 1985 in Hohensachsen/Weinheim), was a German mineralogist, ore deposit-researcher and a pioneer of ore microscopy. Life After attending school at the "Alten Gymnasium" of Darmstadt and studying at the University of Heidelberg, he earned his Doctorate in 1919 under the direction of Otto Mügge in Göttingen with a Dissertation on Basalts of the Blauen Kuppe near Eschwege. As a student in Heidelberg, Ramdohr joined the fraternity Leonensia. His Habilitation was completed soon thereafter under the direction of W. Bruhns on the topic of the Gabbros in the area of Böllstein/Brombachtal. In 1926, he took a position at the University of Aachen as Professor of Mineralogy, Petrography and Ore Geology. In 1934 he moved to the Humboldt University of Berlin, and in 1951 to the University of Heidelberg. There he occupied the Professorship of Mineralogy, which he held until 1958. Paul Ramdohr was married and had four sons and o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serpentine Subgroup
Serpentine subgroup (part of the kaolinite-serpentine group in the category of phyllosilicates) are greenish, brownish, or spotted minerals commonly found in serpentinite. They are used as a source of magnesium and asbestos, and as decorative stone. The name comes from the greenish colour and smooth or scaly appearance from the Latin , meaning "serpent rock". Serpentine subgroup is a set of common rock-forming hydrous magnesium iron phyllosilicate () minerals, resulting from the metamorphism of the minerals that are contained in mafic to ultramafic rocks. They may contain minor amounts of other elements including chromium, manganese, cobalt or nickel. In mineralogy and gemology, serpentine may refer to any of the 20 varieties belonging to the serpentine subgroup. Owing to admixture, these varieties are not always easy to individualize, and distinctions are not usually made. There are three important mineral polymorphs of serpentine: antigorite, lizardite and chrysotile. Serpen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shandite
Shandite is a sulfide mineral with chemical formula: Ni3Pb2S2. It was discovered in 1948 by the German mineralogist Paul Raumdohr who named it named after Scottish petrologist, Samuel James Shand (1882–1957). Ramdohr characterized shandite by its metallic luster and a brass-yellow color. It has a specific gravity of 8.92, and a Mohs hardness value of 4. Shandite is commonly found as an inclusion in other minerals such as Heazelwoodite Ni3S2 or serpentine Serpentine may refer to: Shapes * Serpentine shape, a shape resembling a serpent * Serpentine curve, a mathematical curve * Serpentine, a type of riding figure Science and nature * Serpentine subgroup, a group of minerals * Serpentinite, a .... Its crystal system is trigonal hexagonal scalenohedral with symbol 2/m. It belongs to the space group Rm. Shandite is an anisotropic mineral, which means it has different properties when being viewed from different directions. In cross-polarized light it appears as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. Fellows are entitled to the postnominal FGS (Fellow of the Geological Society), over 2,000 of whom are Chartered Geologists (CGeol). The Society is a Registered Charity, No. 210161. It is also a member of the Science Council, and is licensed to award Chartered Scientist to qualifying members. The mission of the society is: "Making geologists acquainted with each other, stimulating their zeal, inducing them to adopt one nomenclature, facilitating the communication of new facts and ascertaining what is known in their science and what remains to be discovered". History The Society was founded on 13 November 1807 at the Freemasons' Tavern, Great Queen Street, in the Covent Garden district of London. It was partly the outcome of a previous cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mineralogical Society Of Great Britain And Ireland
The Mineralogical Society of Great Britain and Ireland began in 1876. Its main purpose is to disseminate scientific knowledge of the Mineral Sciences (mineralogy) as it may be applied to the fields of crystallography, geochemistry, petrology, environmental science and economic geology. In support of this vision, the society publishes scientific journals, books and monographs. It also organizes and sponsors scientific meetings, and the society connects with other societies which have similar scientific interests. Some of these other societies are the International Mineralogical Association, the European Mineralogical Union, the Mineralogical Society of America, the Mineralogical Association of Canada, the Geological Society of London, IOM3, the North of England Institute of Mining and Mechanical Engineers and the Microbiology Society. Publications The Society publishes a variety of book series; these are entitled the "Landmark Series", the "Mineralogical Society Special Seri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feldspar
Feldspars are a group of rock-forming aluminium tectosilicate minerals, also containing other cations such as sodium, calcium, potassium, or barium. The most common members of the feldspar group are the ''plagioclase'' (sodium-calcium) feldspars and the ''alkali'' (potassium-sodium) feldspars. Feldspars make up about 60% of the Earth's crust, and 41% of the Earth's continental crust by weight. Feldspars crystalize from magma as both intrusive and extrusive igneous rocks and are also present in many types of metamorphic rock. Rock formed almost entirely of calcic plagioclase feldspar is known as anorthosite. Feldspars are also found in many types of sedimentary rocks. Compositions The feldspar group of minerals consists of tectosilicates, silicate minerals in which silicon ions are linked by shared oxygen ions to form a three-dimensional network. Compositions of major elements in common feldspars can be expressed in terms of three endmembers: * potassium feldspar (K-spar) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alkali
In chemistry, an alkali (; from ar, القلوي, al-qaly, lit=ashes of the saltwort) is a basic, ionic salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as a base that dissolves in water. A solution of a soluble base has a pH greater than 7.0. The adjective alkaline, and less often, alkalescent, is commonly used in English as a synonym for basic, especially for bases soluble in water. This broad use of the term is likely to have come about because alkalis were the first bases known to obey the Arrhenius definition of a base, and they are still among the most common bases. Etymology The word "alkali" is derived from Arabic ''al qalīy'' (or ''alkali''), meaning ''the calcined ashes'' (see calcination), referring to the original source of alkaline substances. A water-extract of burned plant ashes, called potash and composed mostly of potassium carbonate, was mildly basic. After heating this substance with calcium hydroxide (''slaked lime ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glasgow
Glasgow ( ; sco, Glesca or ; gd, Glaschu ) is the most populous city in Scotland and the fourth-most populous city in the United Kingdom, as well as being the 27th largest city by population in Europe. In 2020, it had an estimated population of 635,640. Straddling the border between historic Lanarkshire and Renfrewshire, the city now forms the Glasgow City Council area, one of the 32 council areas of Scotland, and is governed by Glasgow City Council. It is situated on the River Clyde in the country's West Central Lowlands. Glasgow has the largest economy in Scotland and the third-highest GDP per capita of any city in the UK. Glasgow's major cultural institutions – the Burrell Collection, Kelvingrove Art Gallery and Museum, the Royal Conservatoire of Scotland, the Royal Scottish National Orchestra, Scottish Ballet and Scottish Opera – enjoy international reputations. The city was the European Capital of Culture in 1990 and is notable for its architecture, cult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archibald Gordon MacGregor
Dr Archibald Gordon MacGregor MC FRSE FGS (1894-19 December 1986) was a 20th century geologist of Scots descent. He was Assistant Director of the British Geological Survey. Friends knew him as Archie MacGregor. Life He was born in Halifax, Nova Scotia the son of James Gordon MacGregor, a geologist who spent time in both Scotland and Nova Scotia. The family returned to Edinburgh in 1901, living at 6 Chalmers Crescent in The Grange. Archibald attended Edinburgh Academy 1904 to 1912. He then studied science at the University of Edinburgh specialising in geology. His life, as many others, was disrupted by World War I during which he was commissioned as a 2nd Lieutenant in the Royal Engineers (Signals Division), seeing service in France and Germany and being demobbed in 1919. He won the Military Cross during the Battle of the Lys in April 1918. He graduated with a BSc in science in 1921. In 1921 he began working as a geologist for HM Geological Survey. He stayed there for his ent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas Allan
Douglas Alexander Allan, CBE, FRSGS, FRSE, FMA (28 January 1896 – 30 July 1967) was a geologist and curator, eventually becoming the director of the Royal Scottish Museum in Edinburgh, from 1945 until 1961. Early life Born in Edinburgh in 1896 and the son of James Allan and Agnes Annie Logan, Douglas Allan was educated at George Watson's College and Boroughmuir Student Centre before going on to serve throughout World War I at the Department of Explosives Supply, Ministry of Munitions and the Royal Field Artillery. He graduated from the University of Edinburgh with BScs in Geology and Chemistry in 1921 and furthered his education with a PhD from the same University in 1923 and a DSc in 1927. Allan took part in the William Speirs Bruce expeditions to Spitsbergen from 1919 to 1921 and worked as an assistant in the Department of Geology under T. J. Jehu from 1921 to 1925. Career He started working as a lecturer at Armstrong College, University of Durham from 1925 to 1929 an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
