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Dimitri Nalivkin
Dmitry Vasilyevich Nalivkin (; 25 August 1889 – 3 March 1982) was a Soviet geologist. He was primarily interested in stratigraphy, but was also responsible in large part for mapping the geology of the Soviet Union. Biography Born in Saint Petersburg to a mining engineer, Nalivkin followed his father's footsteps by entering the local Mining Academy in 1907. During his training he began teaching there, and also became involved in fieldwork expeditions in the Caucasus and Central Asia. Early work dealt with Devonian brachiopods in the Kyrgyzstan portion of the Fergana Valley, and he retained an interest in this geological period throughout his career. Career He received the A. P. Karpinsky Distinguished Award in 1913 for one of his papers on faunal composition, and this provided him with the means to go to the Russian Biological Station in Villefranche (France) to study mollusks. By 1915 Nalivkin was considered an expert in central Asian geology. He was asked by the Russian G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Petersburg
Saint Petersburg, formerly known as Petrograd and later Leningrad, is the List of cities and towns in Russia by population, second-largest city in Russia after Moscow. It is situated on the Neva, River Neva, at the head of the Gulf of Finland on the Baltic Sea. The city had a population of 5,601,911 residents as of 2021, with more than 6.4 million people living in the Saint Petersburg metropolitan area, metropolitan area. Saint Petersburg is the List of European cities by population within city limits, fourth-most populous city in Europe, the List of cities and towns around the Baltic Sea, most populous city on the Baltic Sea, and the world's List of northernmost items#Cities and settlements, northernmost city of more than 1 million residents. As the former capital of the Russian Empire, and a Ports of the Baltic Sea, historically strategic port, it is governed as a Federal cities of Russia, federal city. The city was founded by Tsar Peter the Great on 27 May 1703 on the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Period (geology)
The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (a scientific branch of geology that aims to determine the age of rocks). It is used primarily by Earth scientists (including geologists, paleontologists, geophysicists, geochemists, and paleoclimatologists) to describe the timing and relationships of events in geologic history. The time scale has been developed through the study of rock layers and the observation of their relationships and identifying features such as lithologies, paleomagnetic properties, and fossils. The definition of standardised international units of geological time is the responsibility of the International Commission on Stratigraphy (ICS), a constituent body of the International Union of Geological Sciences (IUGS), whose primary objective is to precisely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lenin Prize
The Lenin Prize (, ) was one of the most prestigious awards of the Soviet Union for accomplishments relating to science, literature, arts, architecture, and technology. It was originally created on June 23, 1925, and awarded until 1934. During the period from 1935 to 1956, the Lenin Prize was not awarded, being replaced largely by the Stalin Prize. On August 15, 1956, it was reestablished, and continued to be awarded on every even-numbered year until 1990. The award ceremony was April 22, Vladimir Lenin's birthday. The Lenin Prize is different from the Lenin Peace Prize, which was awarded to foreign citizens rather than to citizens of the Soviet Union, for their contributions to the peace cause. Also, the Lenin Prize should not be confused with the Stalin Prize or the later USSR State Prize. Some persons were awarded both the Lenin Prize and the USSR State Prize. On April 23, 2018, the head of the Ulyanovsk Oblast, Sergey Morozov, reintroduced the Lenin Prize for achieveme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scale (map)
The scale of a map is the ratio of a distance on the map to the corresponding distance on the ground. This simple concept is complicated by the curvature of the Earth's surface, which forces scale to vary across a map. Because of this variation, the concept of scale becomes meaningful in two distinct ways. The first way is the ratio of the size of the generating globe to the size of the Earth. The generating globe is a conceptual model to which the Earth is shrunk and from which the map is Map projection, projected. The ratio of the Earth's size to the generating globe's size is called the nominal scale (also called principal scale or representative fraction). Many maps state the nominal scale and may even display a bar scale (sometimes merely called a "scale") to represent it. The second distinct concept of scale applies to the variation in scale across a map. It is the ratio of the mapped point's scale to the nominal scale. In this case 'scale' means the scale factor (also ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1948 Ashgabat Earthquake
The 1948 Ashgabat earthquake was on 6 October with a surface-wave magnitude of 7.3 and a maximum Mercalli intensity of X (''Extreme''), in Turkmenistan near Ashgabat. Due to censorship by the Soviet government, the event was not widely reported in the Soviet media. Historians tend to agree that the ban on reporting the extent of the casualties and damage did not allow the Soviet government to allocate enough financial resources to respond adequately. It was the strongest earthquake recorded in Turkmenistan. Details The Ashgabat earthquake struck at 1:12 a.m. on October 6, 1948. The epicenter of the earthquake was near the small village of Gara-Gaudan, 25 kilometres southwest of Ashgabat. The earthquake caused extreme damage in Ashgabat and nearby villages, where almost all brick buildings collapsed, concrete structures were heavily damaged, and freight trains were derailed. There were damage and casualties in Darreh Gaz, Iran. Surface rupture was observed northwest a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ashgabat, Turkmenistan
Ashgabat (Turkmen language, Turkmen: ''Aşgabat'') is the capital city, capital and largest city of Turkmenistan. It lies between the Karakum Desert and the Kopet Dag, Kopetdag mountain range in Central Asia, approximately 50 km (30 mi) away from the Iran-Turkmenistan border. The city has a population of 1,030,063 (2022 census). The city was founded in 1881 on the basis of an Ahal Teke (Turkmen tribe), Teke tribal village, and made the capital of the Turkmen Soviet Socialist Republic in 1924 when it was known as Poltoratsk. Much of the city was destroyed by the 1948 Ashgabat earthquake, but has since been extensively rebuilt under the rule of Saparmurat Niyazov's "White City" urban renewal project, resulting in monumental projects sheathed in costly white marble. The Soviet-era Karakum Canal runs through the city, carrying waters from the Amu Darya from east to west. Today, as the capital of an independent Turkmenistan, Ashgabat retains a multiethnic population, wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bauxite
Bauxite () is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium and gallium. Bauxite consists mostly of the aluminium minerals gibbsite (), boehmite (γ-AlO(OH)), and diaspore (α-AlO(OH)), Mixture, mixed with the two iron oxides goethite (FeO(OH)) and haematite (), the aluminium Clay minerals, clay mineral kaolinite () and small amounts of anatase () and ilmenite ( or ). Bauxite appears dull in Lustre (mineralogy), luster and is reddish-brown, white, or tan. In 1821, the French people, French geologist Pierre Berthier discovered bauxite near the village of Les Baux-de-Provence, Les Baux in Provence, southern France. Formation Numerous classification schemes have been proposed for bauxite but, , there was no consensus. Vadász (1951) distinguished Laterite, lateritic bauxites (silicate bauxites) from karst bauxite ores (carbonate bauxites): * The carbonate bauxites occur predominantly in Europe, Guyana, Suriname, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Petersburg Mining University
Empress Catherine the Great Saint Petersburg Mining University (), is Russia's oldest technical university and one of the oldest technical colleges in Europe. It was founded on October 21, 1773, by Emperor of Russia, Empress Catherine the Great, who realised an idea proposed by Peter the Great and Mikhail Lomonosov for training engineers for the mining and metals industries. Having a strong engineering profession was seen by many Russian rulers as a vital means of maintaining Russia's status as a great power. As historian Alfred J. Rieber wrote, "The marriage of technology and central state power had a natural attraction for Peter the Great and his successors, particularly Paul I of Russia, Paul I, Alexander I of Russia, Alexander I, and Nicholas I of Russia, Nicholas I". All three had had a military education and had seen the achievements of the engineers of French First Republic, revolutionary and First French Empire, imperial France, who had reconstructed the great highways, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petroleum
Petroleum, also known as crude oil or simply oil, is a naturally occurring, yellowish-black liquid chemical mixture found in geological formations, consisting mainly of hydrocarbons. The term ''petroleum'' refers both to naturally occurring unprocessed crude oil, as well as to petroleum products that consist of refining, refined crude oil. Petroleum is a fossil fuel formed over millions of years from anaerobic decay of organic materials from buried prehistoric life, prehistoric organisms, particularly planktons and algae, and 70% of the world's oil deposits were formed during the Mesozoic. Conventional reserves of petroleum are primarily recovered by oil drilling, drilling, which is done after a study of the relevant structural geology, sedimentary basin analysis, analysis of the sedimentary basin, and reservoir characterization, characterization of the petroleum reservoir. There are also unconventional (oil & gas) reservoir, unconventional reserves such as oil sands and oil sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other Chemical element, elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is a type of fossil fuel, formed when dead plant matter decays into peat which is converted into coal by the heat and pressure of deep burial over millions of years. Vast deposits of coal originate in former wetlands called coal forests that covered much of the Earth's tropical land areas during the late Carboniferous (Pennsylvanian (geology), Pennsylvanian) and Permian times. Coal is used primarily as a fuel. While coal has been known and used for thousands of years, its usage was limited until the Industrial Revolution. With the invention of the steam engine, coal consumption increased. In 2020, coal supplied about a quarter of the world's primary energy and over a third of its Electricity generation, electricity. Some iron and steel-maki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedimentology
Sedimentology encompasses the study of modern sediments such as sand, silt, and clay, and the processes that result in their formation (erosion and weathering), transport, deposition and diagenesis. Sedimentologists apply their understanding of modern processes to interpret geologic history through observations of sedimentary rocks and sedimentary structures. Sedimentary rocks cover up to 75% of the Earth's surface, record much of the Earth's history, and harbor the fossil record. Sedimentology is closely linked to stratigraphy, the study of the physical and temporal relationships between rock layers or strata. The premise that the processes affecting the earth today are the same as in the past is the basis for determining how sedimentary features in the rock record were formed. By comparing similar features today to features in the rock record—for example, by comparing modern sand dunes to dunes preserved in ancient aeolian sandstones—geologists reconstruct past environm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleontology
Paleontology, also spelled as palaeontology or palæontology, is the scientific study of the life of the past, mainly but not exclusively through the study of fossils. Paleontologists use fossils as a means to classify organisms, measure geologic time, and assess the interactions between prehistoric organisms and their natural environment. While paleontological observations are known from at least the 6th century BC, the foundation of paleontology as a science dates back to the work of Georges Cuvier in 1796. Cuvier demonstrated evidence for the concept of extinction and how life of the past was not necessarily the same as that of the present. The field developed rapidly over the course of the following decades, and the French word ''paléontologie'' was introduced for the study in 1822, which was derived from the Ancient Greek word for "ancient" and words describing relatedness and a field of study. Further advances in the field accompanied the work of Charles Darwin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
