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David Headley Green
David Headley Green (29 February 1936 – 6 September 2024) was an Australian geologist and experimental petrologist who studied Earth's mantle, and the formation of magmas. He was director of the Australian National University research school of earth sciences from 1994 to 2001, and received many senior medals and awards for his work. He was appointed a Member of the Order of Australia in 2006. Early life Green was born in Launceston, Tasmania, on 29 February 1936. He went to school at Burnie and Hobart High School, before going to university at the University of Tasmania, in Hobart. Education Green completed a BSc at the University of Tasmania in 1957. He then began work as a geologist with the Australian Bureau of Mineral Resources, mapping and studying sequences of igneous rocks in north Queensland and Papua New Guinea from 1957 to 1959. He was awarded an MSc from the University of Tasmania in 1960, and DSc in 1988. In 1958, he was awarded an 1851 Exhibition overseas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Launceston, Tasmania
Launceston () is a city in the north of Tasmania, Australia, at the confluence of the North Esk River, North Esk and South Esk River, South Esk rivers where they become the Tamar River, Tasmania, Tamar River (kanamaluka). As of 2021, the Launceston urban area has a population of 90,953. Material was copied from this source, which is available under Creative Commons Attribution 4.0 International License/ref> Launceston is the second most populous city in Tasmania after the state capital, Hobart. As of 2020, Launceston is the 18th largest city in Australia. Launceston is the fifth-largest inland city and the ninth-largest non-capital city in Australia. Launceston is regarded as the most livable regional city, and was one of the most popular regional cities to move to in Australia from 2020 to 2021. Launceston was named Australian Town of the Year in 2022. Settled by Europeans in March 1806, Launceston is one of Australia's oldest cities and it has many historic buildings. Like ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lizard Peninsula
The Lizard () is a peninsula in southern Cornwall, England, United Kingdom. The Extreme points of the United Kingdom, southernmost point of the Great Britain, British mainland is near Lizard Point, Cornwall, Lizard Point at SW 701115; The Lizard, also known as Lizard village, is the most southerly region on the British mainland, and is in the civil parish of Landewednack. The valleys of the Helford River, and the lake known as The Loe, Loe Pool form the northern boundary, with the rest of the peninsula surrounded by sea. The area measures about . The Lizard is one of England's natural regions and has been designated as a National Character Area 157 by Natural England. The peninsula is known for its geology and for its botany, rare plants and lies within the Cornwall National Landscape, an Area of Outstanding Natural Beauty (AONB), also known as a ''National Landscape''. The Lizard's coast is particularly hazardous to shipping and the seaways round the peninsula were histori ... [...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 previou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Mineralogical Society
The German Mineralogical Society (''Deutsche Mineralogische Gesellschaft'', or DMG, in German) is a non-profit German society for the promotion of mineralogy. It has about 1400 members (2021) and belongs to the International Mineralogical Association and the umbrella organization for geosciences. It was founded at the meeting of German natural scientists and physicians in Cologne in 1908 based on a proposal by Friedrich Martin Berwerth at the 1907 meeting in Dresden. The current chairman (2021-2022) is the geochemist Friedhelm von Blanckenburg. Organization structure The DMG has the sections: * Applied mineralogy: systematics, properties of minerals; Organic, clay mineralogy, gemology * Crystallography: Research into the atomic structure and properties of inorganic and organic crystals (structural research, crystal chemistry, crystal physics, crystal growth and growth) * Geochemistry: distribution laws, frequency and mobility of chemical elements in the Earth, the seas, the at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Society Of Tasmania
The Royal Society of Tasmania (RST) was formed in 1843. It was the first Royal Society outside the United Kingdom, and its mission was the advancement of knowledge. The work of the Royal Society of Tasmania includes: * Promoting Tasmanian historical, scientific and technological knowledge for the benefit of Tasmanians, * Fostering Tasmanian public engagement and participation in the quest for objective knowledge, * Recognising excellence in academia and supporting Tasmanian academic excellence, and * Providing objective advice for policy relating to Tasmanian issues. The Patron of the Society is Her Excellency, Professor, the Honourable Kate Warner AM, Governor of Tasmania. History The Society was founded on 14 October 1843 at a meeting convened by Sir John Eardley-Wilmot, Lieutenant Governor, as the Botanical and Horticultural Society of Van Diemen’s Land. Its original aim was to ‘develop the physical character of the Island and illustrate its natural history and pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological Society Of Australia
The Geological Society of Australia (GSA) was established as a non-profit organisation in 1952 to promote, advance and support earth sciences in Australia. The founding chairperson was Edwin Sherbon Hills. William Rowan Browne was a founder of the society and was president 1955–56. at Australian Dictionary of Biography Publications *'' Australian Journal of Earth Sciences (AJES)'' – official journal of the GSA, eight issues per year *'' The Australian Geologist (TAG)'' – quarterly magazine that includes technical ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Society Of New South Wales
The Royal Society of New South Wales is a learned society based in Sydney, Australia. The Governor of New South Wales is the vice-regal patron of the Society. It is the oldest learned society in the Southern Hemisphere. The Society traces its origin to the Philosophical Society of Australasia established on 27 June 1821. In 1850, after a period of informal activity, the Society was revived as the Australian Philosophical Society and, in 1856, the Philosophical Society of New South Wales. The Society was granted Royal Assent on 12 December 1866 and at that time was renamed the Royal Society of New South Wales. Membership is open to any person interested in the promotion of studies in Science, Art, Literature and Philosophy. Fellowship and Distinguished Fellowship are by election, and may be conferred on leaders in their fields. Fellowship and Distinguished Fellowship are honours gazetted under vice-regal authority by the Governor of New South Wales, and marked by the post-nomina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edgeworth David Medal
The Edgeworth David Medal is awarded annually by the Royal Society of New South Wales The Royal Society of New South Wales is a learned society based in Sydney, Australia. The Governor of New South Wales is the vice-regal patron of the Society. It is the oldest learned society in the Southern Hemisphere. The Society traces its ... for distinguished contributions by a young scientist under the age of 35 years for work done predominantly in Australia or which contributed to the advancement of Australian science. It was first awarded in 1949 and is named after the pioneering geologist Sir Edgeworth David, FRS. Recipients SourceRSNSW See also * List of general science and technology awards * List of awards named after people References {{reflist Early career awards Australian science and technology awards Awards established in 1943 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leap Year
A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) compared to a common year. The 366th day (or 13th month) is added to keep the calendar year synchronised with the astronomical year or seasonal year. Since astronomical events and seasons do not repeat in a Natural number, whole number of days, calendars having a constant number of days each year will unavoidably drift over time with respect to the event that the year is supposed to track, such as seasons. By inserting ("Intercalation (timekeeping), intercalating") an additional day—a leap day—or month—a leap month—into some years, the drift between a civilization's dating system and the physical properties of the Solar System can be corrected. An astronomical year lasts slightly less than 365 days. The historic Julian calendar has three common years of 365 days followed by a leap year of 366&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Mantle
The upper mantle of Earth is a very thick layer of rock inside the planet, which begins just beneath the crust (geology), crust (at about under the oceans and about under the continents) and ends at the top of the lower mantle (Earth), lower mantle the . Temperatures range from approximately at the upper boundary with the crust to approximately at the boundary with the lower mantle. Upper mantle material that has come up onto the surface comprises about 55% olivine, 35% pyroxene, and 5 to 10% of calcium oxide and aluminum oxide minerals such as plagioclase, spinel, or garnet, depending upon depth. Seismic structure The density profile through Earth is determined by the velocity of seismic waves. Density increases progressively in each layer, largely due to compression of the rock at increased depths. Abrupt changes in density occur where the material composition changes. The upper mantle begins just beneath the crust and ends at the top of the lower mantle. The upper mantl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eclogite
Eclogite () is a metamorphic rock containing garnet ( almandine- pyrope) hosted in a matrix of sodium-rich pyroxene ( omphacite). Accessory minerals include kyanite, rutile, quartz, lawsonite, coesite, amphibole, phengite, paragonite, zoisite, dolomite, corundum and, rarely, diamond. The chemistry of primary and accessory minerals is used to classify three types of eclogite (A, B, and C). The broad range of eclogitic compositions has led to a longstanding debate on the origin of eclogite xenoliths as subducted, altered oceanic crust. The name ''eclogite'' is derived from the Ancient Greek word for 'choice' (, ), meaning 'chosen rock' on account of its perceived beauty. It was first named by René Just Haüy in 1822 in the second edition of his work ''Traité de minéralogie''. Origins Eclogites typically result from high to ultrahigh pressure metamorphism of mafic rock at low thermal gradients of < as it is subducted to the lower crust to |
Gabbro
Gabbro ( ) is a phaneritic (coarse-grained and magnesium- and iron-rich), mafic intrusive igneous rock formed from the slow cooling magma into a holocrystalline mass deep beneath the Earth's surface. Slow-cooling, coarse-grained gabbro is chemically equivalent to rapid-cooling, fine-grained basalt. Much of the Earth's oceanic crust is made of gabbro, formed at mid-ocean ridges. Gabbro is also found as plutons associated with continental volcanism. Due to its variant nature, the term ''gabbro'' may be applied loosely to a wide range of intrusive rocks, many of which are merely "gabbroic". By rough analogy, gabbro is to basalt as granite is to rhyolite. Etymology The term "gabbro" was used in the 1760s to name a set of rock types that were found in the ophiolites of the Apennine Mountains in Italy. It was named after Gabbro, a hamlet near Rosignano Marittimo in Tuscany. Then, in 1809, the German geologist Christian Leopold von Buch used the term more restrictively in his d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
