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Eduard Wenk
Eduard Jean Louis Wenk (4 November 1907, Basel – 19 October 2001, Basel) was a Swiss geologist, petrographer, and mineralogist. Biography As a teenager, Wenk was keenly interested in the paleontology and botany of the Swiss Jura. He studied as an undergraduate and graduate student (1930 to 1934) at the University of Basel. There he was influenced by Heinrich Preiswerk-Becker (1876–1940), for whom he carried out field work in the Central Alps in 1929. Wenk's 1934 Ph.D. dissertation, with Max Reinhard (1882–1974) as '' Doktorvater'', is entitled ''Beiträge zur Petrographie und Geologie des Silvretta-Kristalls'' (Contributions to the petrography and geology of the crystalline rocks of the Silvretta Alps).(with comprehensive publication list) During a visit to Bruno Sander in Innsbruck, Wenk learned the methods of structural petrology. As a postdoc under Helge Backlund (1878–1958), he studied from 1934 to 1935 at the University of Uppsala. There he also met Jakob Johannes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basel
, french: link=no, Bâlois(e), it, Basilese , neighboring_municipalities= Allschwil (BL), Hégenheim (FR-68), Binningen (BL), Birsfelden (BL), Bottmingen (BL), Huningue (FR-68), Münchenstein (BL), Muttenz (BL), Reinach (BL), Riehen (BS), Saint-Louis (FR-68), Weil am Rhein (DE-BW) , twintowns = Shanghai, Miami Beach , website = www.bs.ch Basel ( , ), also known as Basle ( ),french: Bâle ; it, Basilea ; rm, label= Sutsilvan, Basileia; other rm, Basilea . is a city in northwestern Switzerland on the river Rhine. Basel is Switzerland's third-most-populous city (after Zürich and Geneva) with about 175,000 inhabitants. The official language of Basel is (the Swiss variety of Standard) German, but the main spoken language is the local Basel German dialect. Basel is commonly considered to be the cultural capital of Switzerland and the city is famous for its many museums, including the Kunstmuseum, which is the first collection of art accessibl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Niggli
Paul Niggli (26 June 1888 – 13 January 1953) was a Swiss crystallographer, mineralogist, and petrologist who was a leader in the field of X-ray crystallography. Education and career Niggli was born in Zofingen and studied at the Swiss Federal Institute of Technology (ETH) in Zurich and the University of Zurich, where he obtained a doctorate. His 1919 book, ''Geometrische Kristallographie des Diskontinuums'', played a seminal role in the refinement of space group theory. In this book, Niggli demonstrated that although X-ray reflection conditions do not always uniquely determine the space group to which a crystal belongs, they do reveal a small number of possible space groups to which it could belong. Niggli used morphological methods to account for internal structure and, in his 1928 ''Kristallographische und Strukturtheoretische Grundbegriffe,'' he took up what is essentially the reverse process, the task of establishing the connection between space lattices and external cry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustav Steinmann Medal
The Gustav-Steinmann-Medaille is a scientific award by the - (German Geological Society-Geological Association) to an individual who has made outstanding contributions in the fields of geology and earth sciences. The award is named after the German geologist and paleontologist Gustav Steinmann. Laureates The medal has been awarded each year to the following scientists: See also * List of geology awards This list of geology awards is an index to articles on notable awards for geology, an earth science concerned with the solid Earth, the rocks of which it is composed, and the processes by which they change over time. Geology can also include the ... References {{reflist Geology awards Awards established in 1938 ... [...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 atm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans-Rudolf Wenk
Hans-Rudolf Wenk is a Swiss mountaineer, vintner, mineralogist, crystallographer and geologist. Education and career Wenk was born in Zürich, Switzerland in 1941 and grew up in Basel. He studied crystallography at the University of Zürich under the direction of Prof. Fritz Laves and obtained a PhD in 1965. In 1966, he went to California, first on a postdoctoral position in experimental rock deformation at UCLA with David Griggs and John Christie and then, in the fall of 1967, assuming a faculty position in mineralogy at the University of California in Berkeley. Research Wenk's research interests covered a broad field of topics. His first projects consisted of crystal structure determinations of new minerals such as the silicates wenkite (named after his father, Swiss geologist Eduard Wenk), howieite. and zussmanite, and refining crystal structures from different geological settings such as lunar ilmenite, carbonates and plagioclase. He also used transmission electron micr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plagioclase
Plagioclase is a series of tectosilicate (framework silicate) minerals within the feldspar group. Rather than referring to a particular mineral with a specific chemical composition, plagioclase is a continuous solid solution series, more properly known as the plagioclase feldspar series. This was first shown by the German mineralogist Johann Friedrich Christian Hessel (1796–1872) in 1826. The series ranges from albite to anorthite endmembers (with respective compositions NaAlSi3O8 to CaAl2Si2O8), where sodium and calcium atoms can substitute for each other in the mineral's crystal lattice structure. Plagioclase in hand samples is often identified by its polysynthetic crystal twinning or 'record-groove' effect. Plagioclase is a major constituent mineral in the Earth's crust, and is consequently an important diagnostic tool in petrology for identifying the composition, origin and evolution of igneous rocks. Plagioclase is also a major constituent of rock in the highlan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isograd
__NOTOC__ An isograd is a concept used in the study of metamorphic rocks. The metamorphic grade of such a rock is a rough measure of the degree of metamorphism it has undergone, as characterised by the presence of certain index minerals. An isograd is a theoretical surface composed of points where the metamorphic grade is the same. It thus separates metamorphic zones whose rocks contain different index minerals.Marchak (2009), p183 On geologic maps focusing on metamorphic terranes (or landscapes underlain by metamorphic rocks), the boundaries between rocks of different metamorphic grade are commonly demarcated by isograd lines. The garnet isograd, for example, would mark the first occurrence of garnet in the rocks. The minerals present in a metamorphic rock are important because laboratory experiments at high pressures and temperatures have provided a lot of information on the pressure and temperature conditions under which certain metamorphic minerals form. For example, with incre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Headland
A headland, also known as a head, is a coastal landform, a point of land usually high and often with a sheer drop, that extends into a body of water. It is a type of promontory. A headland of considerable size often is called a cape.Whittow, John (1984). ''Dictionary of Physical Geography''. London: Penguin, 1984, pp. 80, 246. . Headlands are characterised by high, breaking waves, rocky shores, intense erosion, and steep sea cliff. Headlands and bays are often found on the same coastline. A bay is flanked by land on three sides, whereas a headland is flanked by water on three sides. Headlands and bays form on discordant coastlines, where bands of rock of alternating resistance run perpendicular to the coast. Bays form when weak (less resistant) rocks (such as sands and clays) are eroded, leaving bands of stronger (more resistant) rocks (such as chalk, limestone, and granite) forming a headland, or peninsula. Through the deposition of sediment within the bay and the erosion of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornö
Ornö is the largest island in the southern half of the Stockholm archipelago, situated just north of the island of Utö. It belongs to the municipality of Haninge. The island is approx. 15 km long and 3–4 km wide. The primary connection with the mainland, a car ferry line, is operated by ''Ornö Sjötrafik''. This is a community owned company. The ferry goes between Dalarö Dalarö is a locality situated in Haninge Municipality, Stockholm County, Sweden with 1,199 inhabitants in 2010. It is situated south-east of Stockholm and is part of Metropolitan Stockholm and serves as a recreational summer spot for Stockholm ... on the mainland and ''Hässelmara'' on north-western Ornö. There are some 300 people living on the island all year round. During summer, the number of people on the island multiplies. Each year by the end of may, the largest sailing competition in the Stockholm archipelago takes place around the island. It is called the ''Ornö runt'' or ''Aroun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California, Berkeley
The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant university and the founding campus of the University of California system. Its fourteen colleges and schools offer over 350 degree programs and enroll some 31,800 undergraduate and 13,200 graduate students. Berkeley ranks among the world's top universities. A founding member of the Association of American Universities, Berkeley hosts many leading research institutes dedicated to science, engineering, and mathematics. The university founded and maintains close relationships with three national laboratories at Berkeley, Livermore and Los Alamos, and has played a prominent role in many scientific advances, from the Manhattan Project and the discovery of 16 chemical elements to breakthroughs in computer science and genomics. Berkeley is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chandigarh
Chandigarh () is a planned city in India. Chandigarh is bordered by the state of Punjab to the west and the south, and by the state of Haryana to the east. It constitutes the bulk of the Chandigarh Capital Region or Greater Chandigarh, which also includes the adjacent Satellite city, satellite cities of Panchkula and Mohali. It is located 260 km (162 miles) north of New Delhi and 229 km (143 miles) southeast of Amritsar. Chandigarh is one of the earliest planned cities in post-independence India and is internationally known for its architecture and urban design. The master plan of the city was prepared by Swiss-French architect Le Corbusier, which built upon earlier plans created by the Polish architect Maciej Nowicki (architect), Maciej Nowicki and the American planner Albert Mayer (planner), Albert Mayer. Most of the government buildings and housing in the city were designed by a team headed by Le Corbusier, Jane Drew and Maxwell Fry. Chandigarh's Chandigarh Capitol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panjab University
Panjab University (PU) is a Collegiate university, collegiate public state university located in Chandigarh, Punjab. Funded through both Punjab, India, State and Government of India, Union governments, it is considered a state university (India), state university. It traces its origins to the University of the Punjab in Lahore, which was founded in 1882. After the partition of India, the university was established on October 1, 1947, and called East Punjab University. Initially housed primarily at a cantonment in Solan, Himachal Pradesh, Solan, it later relocated to a newly built campus in Chandigarh, and was renamed Panjab University. The university has 78 teaching and research departments and 10 centres/chairs for teaching and research at the main campus located at Chandigarh. It has List of Colleges affiliated to Panjab University, Chandigarh, 188 affiliated colleges spread over the eight districts of Punjab state and union-territory of Chandigarh, with Regional Centres at M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
