Achenheim is a commune in the Bas-Rhin department and Grand Est region of north-eastern France. The village, in the arrondissement of Strasbourg and the canton of Lingolsheim lies close to the Canal de la Bruche and to the departemental road connecting Soultz-les-Bains to Strasbourg; the oldest traces of human habitation in Alsace – tools used by Homo erectus in the Paleolithic era some 700,000 years ago – have been found in loess deposits at Achenheim. In 1264 the village was burnt down by forces from Strasbourg during the war between the city and its bishop, Walter de Geroldseck. Canal de la Bruche Bruche River Communes of the Bas-Rhin department INSEE commune file
Schist is a medium-grade metamorphic rock. Schist has medium to large, sheet-like grains in a preferred orientation, it is defined by having more than 50% platy and elongated minerals finely interleaved with quartz and feldspar. These lamellar minerals include micas, talc, hornblende and others. Quartz occurs in drawn-out grains to such an extent that a particular form called quartz schist is produced. Schist is garnetiferous. Schist has larger grains than phyllite. Geological foliation with medium to large grained flakes in a preferred sheetlike orientation is called schistosity; the names of various schists are derived from their mineral constituents. For example, schists composed of biotite and muscovite are called mica schists. Most schists are mica schists, but graphite and chlorite schists are common. Schists are named for their prominent or unusual mineral constituents, as in the case of garnet schist, tourmaline schist, glaucophane schist; the individual mineral grains in schist, drawn out into flaky scales by heat and pressure, can be seen with the naked eye.
Schist is characteristically foliated, meaning that the individual mineral grains split off into flakes or slabs. The word schist is derived from the Greek word σχίζειν meaning "to split", a reference to the ease with which schists can be split along the plane in which the platy minerals lie. Most schists are derived from clays and muds that have passed through a series of metamorphic processes involving the production of shales and phyllites as intermediate steps. Certain schists are derived from fine-grained igneous rocks such as tuffs. Before the mid-18th century, the terms slate and schist were not differentiated by those involved with mining. During metamorphism, rocks which were sedimentary, igneous or metamorphic are converted into schists and gneisses. If the composition of the rocks was similar, they may be difficult to distinguish from one another if the metamorphism has been great. A quartz-porphyry, for example, a fine grained feldspathic sandstone, may both be converted into a grey or pink mica-schist.
However, it is possible to distinguish between sedimentary and igneous schists and gneisses. If, for example, the whole district occupied by these rocks has traces of bedding, clastic structure, or unconformability it may be a sign that the original rock was sedimentary. In other cases intrusive junctions, chilled edges, contact alteration or porphyritic structure may prove that in its original condition a metamorphic gneiss was an igneous rock; the last appeal is to the chemistry, for there are certain rock types which occur only as sediments, while others are found only among igneous masses, however advanced the metamorphism may be, it modifies the chemical composition of the mass greatly. Such rocks as limestones, dolomites and aluminous shales have definite chemical characteristics which distinguish them when recrystallized; the schists are classified principally according to the minerals they consist of and on their chemical composition. For example, many metamorphic limestones and calc-schists, with crystalline dolomites, contain silicate minerals such as mica, diopside, scapolite and feldspar.
They are derived from calcareous sediments of different degrees of purity. Another group is rich in quartz, with variable amounts of white and black mica, feldspar and hornblende; these were once arenaceous rocks. The graphitic schists may be believed to represent sediments once containing coal or plant remains. Among schists of igneous origin there are the silky calc-schists, the foliated serpentines, the white mica-schists and banded halleflintas, which have been derived from rhyolites, quartz-porphyries and felsic tuffs; the majority of mica-schists, are altered claystones and shales, pass into the normal sedimentary rocks through various types of phyllite and mica-slates. They are among the most common metamorphic rocks; the diversity in appearance and composition is great, but they form a well-defined group not difficult to recognize, from the abundance of black and white micas and their thin, schistose character. A subgroup is the andalusite-, staurolite-, kyanite- and sillimanite-schists which make their appearance in the vicinity of gneissose granites, have been affected by contact metamorphism.
In geotechnical engineering a schistosity plane forms a discontinuity that may have a large influence on the mechanical behavior of rock masses in, for example, foundation, or slope construction. List of rock textures – A list of rock textural and morphological terms Greenschist Pelite An Examination of Mica Schist by Andrea Samuels, Micscape magazine. Photographs of Manhattan schist. by USGS: Idaho, Univ. of Idaho, articles cited
In medieval Germany, the Schultheiß was the head of a municipality, a Vogt or an executive official of the ruler. As official it was his duty to order his assigned village or county to pay the taxes and perform the services due to the ruler; the name originates from this function: Schuld ‘debt’ + heißen ‘to order’. The title was used for the head of a town or village; the title was spelled in Old High German as sculdheizo and in Middle High German as schultheize. Alternative spellings include Schulte or Schulze, or in Switzerland Schultheiss, it appears in several European languages: In Hungarian as soltész, in Italian as scoltetto and sculdascio, in Medieval Latin as sculdasius, in Polish as sołtys and Romanian as șoltuz. Until as as 2007, Schultheiss was the title of the president of the government of the Canton of Lucerne, Switzerland. Schultheiß is the basis for one of the most common German surnames, existing in many variations such as Schulz, Scholz, Schulte, Schulthess, Scholtes and Shultis corresponding to the local variants of the pronunciation of the office.
Another Anglicization is Sholdice. Schultheisz, Sultész and Soltész appear to be Hungarian spellings of the surname. In Hungary, Soltész is a family surname. In Poland, sołtys is the name given to the elected head of a rural subdivision known as a sołectwo. Joachim Ludwig Schultheiss von Unfriedt, architect similar medieval offices: Vogt, Altmann, Scholtisei. Schout, the equivalent office in the Netherlands Reichsvogt, nearly equivalent office in medieval Switzerland Sheriff, the equivalent office in medieval England Patel, the equivalent office in medieval Gujarat
Manganese is a chemical element with symbol Mn and atomic number 25. It is not found as a free element in nature. Manganese is a metal with important industrial metal alloy uses in stainless steels. Manganese is named for pyrolusite and other black minerals from the region of Magnesia in Greece, which gave its name to magnesium and the iron ore magnetite. By the mid-18th century, Swedish-German chemist Carl Wilhelm Scheele had used pyrolusite to produce chlorine. Scheele and others were aware that pyrolusite contained a new element, but they were unable to isolate it. Johan Gottlieb Gahn was the first to isolate an impure sample of manganese metal in 1774, which he did by reducing the dioxide with carbon. Manganese phosphating is used for corrosion prevention on steel. Ionized manganese is used industrially as pigments of various colors, which depend on the oxidation state of the ions; the permanganates of alkali and alkaline earth metals are powerful oxidizers. Manganese dioxide is used as the cathode material in alkaline batteries.
In biology, manganese ions function as cofactors for a large variety of enzymes with many functions. Manganese enzymes are essential in detoxification of superoxide free radicals in organisms that must deal with elemental oxygen. Manganese functions in the oxygen-evolving complex of photosynthetic plants. While the element is a required trace mineral for all known living organisms, it acts as a neurotoxin in larger amounts. Through inhalation, it can cause manganism, a condition in mammals leading to neurological damage, sometimes irreversible. Manganese is a silvery-gray metal, it is hard and brittle, difficult to fuse, but easy to oxidize. Manganese metal and its common ions are paramagnetic. Manganese tarnishes in air and oxidizes like iron in water containing dissolved oxygen. Occurring manganese is composed of one stable isotope, 55Mn. Eighteen radioisotopes have been isolated and described, ranging in atomic weight from 46 u to 65 u; the most stable are 53Mn with a half-life of 3.7 million years, 54Mn with a half-life of 312.3 days, 52Mn with a half-life of 5.591 days.
All of the remaining radioactive isotopes have half-lives of less than three hours, the majority of less than one minute. The primary decay mode before the most abundant stable isotope, 55Mn, is electron capture and the primary mode after is beta decay. Manganese has three meta states. Manganese is part of the iron group of elements, which are thought to be synthesized in large stars shortly before the supernova explosion. 53Mn decays to 53Cr with a half-life of 3.7 million years. Because of its short half-life, 53Mn is rare, produced by cosmic rays impact on iron. Manganese isotopic contents are combined with chromium isotopic contents and have found application in isotope geology and radiometric dating. Mn–Cr isotopic ratios reinforce the evidence from 26Al and 107Pd for the early history of the solar system. Variations in 53Cr/52Cr and Mn/Cr ratios from several meteorites suggest an initial 53Mn/55Mn ratio, which indicates that Mn–Cr isotopic composition must result from in situ decay of 53Mn in differentiated planetary bodies.
Hence, 53Mn provides additional evidence for nucleosynthetic processes before coalescence of the solar system. The most common oxidation states of manganese are +2, +3, +4, +6, +7, though all oxidation states from −3 to +7 have been observed. Mn2+ competes with Mg2+ in biological systems. Manganese compounds where manganese is in oxidation state +7, which are restricted to the unstable oxide Mn2O7, compounds of the intensely purple permanganate anion MnO4−, a few oxyhalides, are powerful oxidizing agents. Compounds with oxidation states +5 and +6 are strong oxidizing agents and are vulnerable to disproportionation; the most stable oxidation state for manganese is +2, which has a pale pink color, many manganese compounds are known, such as manganese sulfate and manganese chloride. This oxidation state is seen in the mineral rhodochrosite. Manganese most exists with a high spin, S = 5/2 ground state because of the high pairing energy for manganese. However, there are a few examples of S = 1/2 manganese.
There are no spin-allowed d–d transitions in manganese, explaining why manganese compounds are pale to colorless. The +3 oxidation state is known in compounds like manganese acetate, but these are quite powerful oxidizing agents and prone to disproportionation in solution, forming manganese and manganese. Solid compounds of manganese are characterized by its strong purple-red color and a preference for distorted octahedral coordination resulting from the Jahn-Teller effect; the oxidation state +5 can be produced by dissolving manganese dioxide in molten sodium nitrite. Manganate salts can be produced by dissolving Mn compounds, such as manganese dioxide, in molten alkali while exposed to air. Permanganate compounds are purple, can give glass a violet color. Potassium permanganate, sodium permanganate, barium permanganate are all potent oxidizers. Potassium permanganate called Condy's crystals, is a used laboratory reagent because of its oxidizing properties. Solutions of potassium permanganate were among the first stains and fixatives to be used in the preparation of biological cells and tissues for electron microscopy
Grand Est Alsace-Champagne-Ardenne-Lorraine, is an administrative region in eastern France. It superseded three former administrative regions—Alsace, Champagne-Ardenne, Lorraine—on 1 January 2016, as a result of territorial reform, passed by the French legislature in 2014. Alsace-Champagne-Ardenne-Lorraine was a provisional name, created by hyphenating the merged regions in alphabetical order. France's Conseil d'État approved Grand Est as the new name of the region on 28 September 2016, effective 30 September 2016; the administrative capital and largest city is Strasbourg. The provisional name of the region was Alsace-Champagne-Ardenne-Lorraine, formed by combining the names of the three present regions—Alsace, Champagne-Ardenne, Lorraine—in alphabetical order with hyphens; the formula for the provisional name of the region was established by the territorial reform law and applied to all but one of the provisional names for new regions. The ACAL regional council, elected in December 2015, was given the task of choosing a name for the region and submitting it to the Conseil d'État—France's highest authority for administrative law—by 1 July 2016 for approval.
The provisional name of the region was retired on 30 September 2016, when the new name of the region, Grand Est, took effect. In Alsace and in Lorraine, the new region has been called ALCA, for Alsace-Lorraine-Champagne-Ardennes, on the internet. Like the name Région Hauts-de-France, the name Région Grand Est contains no reference whatsoever to the area's history or identity, but describes its geographical location within metropolitan France. In a poll conducted in November 2014 by France 3 in Champagne-Ardenne, Grand Est and Austrasie were the top two names among 25 candidates and 4,701 votes. Grand Est topped a poll the following month conducted by L'Est Républicain, receiving 42% of 3,324 votes; the names which received a moderate amount of discussion were: Grand Est français, a term used to refer to the northeast quarter of Metropolitan France, although this term refers to a geographic region larger than just ACAL. The term has been used and topped the polls mentioned above. Grand Est Europe, a variant of Grand Est that alludes to the region being a gateway to Europe both through trade and since Strasbourg is home to several European institutions.
However, the name was mocked for. Austrasie, which refers to an historical region spanning parts of present-day northeast France, the Benelux, northwest Germany. Quatre frontières. Grand Est is the sixth-largest of the regions of France. Grand Est borders four countries—Belgium, Luxembourg and Switzerland—along its northern and eastern sides, it is the only French region to border more than two countries. To the west and south, it borders the French regions Hauts-de-France, Île-de-France, Bourgogne-Franche-Comté. Grand Est contains ten departments: Ardennes, Bas-Rhin, Haute-Marne, Haut-Rhin, Meurthe-et-Moselle, Moselle, Vosges; the main ranges in the region include the Vosges to the Ardennes to the north. The region is bordered on the east by the Rhine. Other major rivers which flow through the region include the Meuse, Marne, Saône. Lakes in the region include lac de Gérardmer, lac de Longemer, lac de Retournemer, lac des Corbeaux, Lac de Bouzey, lac de Madine, étang du Stock and lac de Pierre-Percée.
Grand Est climate depends of the proximity of the sea. In Champagne and Western Lorraine, the climate is oceanic, with mild summers, but Moselle and Alsace climates are humid continental, characterized by cold winters with frequent days below the freezing point, hot summers, with many days with temperatures up to 32°C. Grand Est is the result of territorial reform legislation passed in 2014 by the French Parliament to reduce the number of regions in Metropolitan France—the part of France in continental Europe—from 22 to 13. ACAL is the merger of three regions: Alsace, Champagne-Ardenne, Lorraine; the merger has been, still is opposed by some groups in Alsace, a large majority of Alsatians. The territorial reform law allows new regions to choose the seat of the regional councils, but made Strasbourg the seat of the Grand Est regional council—a move to appease the region's politicians; the region has an official population of 5,555,186. The regional council has limited administrative authority concerning the promotion of the region's economy and financing educational and cultural activities.
The regional council has no legislative authority. The seat of the regional council will be Strasbourg; the regional council, elected in December 2015, is controlled by The Republicans. The elected inaugural president of the Grand Est Regional Council is Philippe Richert, the President of the Alsace Regional Council; the current president is Jean Rottner. The region has five tram networks: Strasbourg tramway Reims tramway Nancy Guided Light Transit Mulhouse tramway Saarbahn The region has four airports: EuroAirport Basel M
Communes of France
The commune is a level of administrative division in the French Republic. French communes are analogous to civil townships and incorporated municipalities in the United States and Canada, Gemeinden in Germany, comuni in Italy or ayuntamiento in Spain; the United Kingdom has no exact equivalent, as communes resemble districts in urban areas, but are closer to parishes in rural areas where districts are much larger. Communes are based on historical geographic communities or villages and are vested with significant powers to manage the populations and land of the geographic area covered; the communes are the fourth-level administrative divisions of France. Communes vary in size and area, from large sprawling cities with millions of inhabitants like Paris, to small hamlets with only a handful of inhabitants. Communes are based on pre-existing villages and facilitate local governance. All communes have names, but not all named geographic areas or groups of people residing together are communes, the difference residing in the lack of administrative powers.
Except for the municipal arrondissements of its largest cities, the communes are the lowest level of administrative division in France and are governed by elected officials with extensive autonomous powers to implement national policy. A commune is city, or other municipality. "Commune" in English has a historical bias, implies an association with socialist political movements or philosophies, collectivist lifestyles, or particular history. There is nothing intrinsically different between commune in French; the French word commune appeared in the 12th century, from Medieval Latin communia, for a large gathering of people sharing a common life. As of January 2015, there were 36,681 communes in France, 36,552 of them in metropolitan France and 129 of them overseas; this is a higher total than that of any other European country, because French communes still reflect the division of France into villages or parishes at the time of the French Revolution. The whole territory of the French Republic is divided into communes.
This is unlike some other countries, such as the United States, where unincorporated areas directly governed by a county or a higher authority can be found. There are only a few exceptions: COM of Saint-Martin, it was a commune inside the Guadeloupe région. The commune structure was abolished when Saint-Martin became an overseas collectivity on 22 February 2007. COM of Wallis and Futuna, which still is divided according to the three traditional chiefdoms. COM of Saint Barthélemy, it was a commune inside the Guadeloupe region. The commune structure was abolished when Saint-Barthélemy became an overseas collectivity on 22 February 2007. Furthermore, two regions without permanent habitation have no communes: TOM of the French Southern and Antarctic Lands Clipperton Island in the Pacific Ocean In metropolitan France, the average area of a commune in 2004 was 14.88 square kilometres. The median area of metropolitan France's communes at the 1999 census was smaller, at 10.73 square kilometres. The median area is a better measure of the area of a typical French commune.
This median area is smaller than that of most European countries. In Italy, the median area of communes is 22 km2. Switzerland and the Länder of Rhineland-Palatinate, Schleswig-Holstein, Thuringia in Germany were the only places in Europe where the communes had a smaller median area than in France; the communes of France's overseas départements such as Réunion and French Guiana are large by French standards. They group into the same commune several villages or towns with sizeable distances among them. In Réunion, demographic expansion and sprawling urbanization have resulted in the administrative splitting of some communes; the median population of metropolitan France's communes at the 1999 census was 380 inhabitants. Again this is a small number, here France stands apart in Europe, with the lowest communes' median population of all the European countries; this small median population of French communes can be compared with Italy, where the median population of communes in 2001 was 2,343 inhabitants, Belgium, or Spain.
The median population given here should not hide the fact that there are pronounced differences in size between French communes. As mentioned in the introduction, a commune can be a city of 2 million inhabitants such as Paris, a town of 10,000 inhabitants, or just a hamlet of 10 inhabitants. What the median population tells us is that the vast majority of the French communes only have a few hundred inhabitants. In metropolitan France just over 50 percent of the 36,683 communes have fewer than 500 inhabitants a
The Vosges are a range of low mountains in eastern France, near its border with Germany. Together with the Palatine Forest to the north on the German side of the border, they form a single geomorphological unit and low mountain range of around 8,000 km2 in area, it runs in a north-northeast direction from the Burgundian Gate to the Börrstadt Basin, forms the western boundary of the Upper Rhine Plain. The Grand Ballon is the highest peak at 1,424 m, followed by the Storkenkopf, the Hohneck. Geographically, the Vosges Mountains are wholly in France, far above the Col de Saverne separating them from the Palatinate Forest in Germany; the latter area logically continues the same Vosges geologic structure but traditionally receives this different name for historical and political reasons. From 1871 to 1918 the Vosges marked for the most part the border between Germany and France, due to the Franco-Prussian War; the elongated massif is divided south to north into three sections: The Higher Vosges or High Vosges, extending in the southern part of the range from Belfort to the river valley of the Bruche.
The rounded summits of the Hautes Vosges are called ballons in French "balloons". The sandstone Vosges or Middle Vosges, between the Permian Basin of Saint-Die including the Devonian-Dinantian volcanic massif of Schirmeck-Moyenmoutier and the Col de Saverne The Lower Vosges or Low Vosges, a sandstone plateau ranging from 1,000 feet to 1,850 feet high, between the Col de Saverne and the source of the Lauter. In addition, the term "Central Vosges" is used to designate the various lines of summits those above 1,000 m in elevation; the French department of Vosges is named after the range. From a geological point of view, a graben at the beginning of the Paleogene period caused the formation of Alsace and the uplift of the plates of the Vosges, in eastern France, those in the Black Forest, in Germany. From a scientific view, the Vosges Mountains are not mountains as such, but rather the western edge of the unfinished Alsatian graben, stretching continuously as part of the larger Tertiary formations.
Erosive glacial action was the primary catalyst for development of the representative highland massif feature. The Vosges in their southern and central parts are called the Hautes Vosges; these consist of a large Carboniferous mountain eroded just before the Permian Period with gneiss, porphyritic masses or other volcanic intrusions. In the north and west, there are places less eroded by glaciers, here Vosges Triassic and Permian red sandstone remains are found in large beds; the grès vosgien are embedded sometimes up to more than 500 m in thickness. The Lower Vosges in the north are dislocated plates of various sandstones, ranging from 300 to 600 m high; the Vosges is similar to the corresponding range of the Black Forest on the other side of the Rhine: both lie within the same degrees of latitude, have similar geological formations, are characterized by forests on their lower slopes, above which are open pastures and rounded summits of a rather uniform altitude. Both areas exhibit steeper slopes towards the Rhine River and a more gradual descent on the other side.
This occurs because both the Vosges and the Black Forest were formed by isostatic uplift, in a response to the opening of the Rhine Graben. The Rhine Graben is a major extensional basin; when such basins form, the thinning of the crust causes uplift adjacent to the basin. The amount of uplift decreases with distance from the basin, causing the highest range of peaks to be adjacent to the basin, the lower mountains to stretch away from the basin; the highest points are in the Hautes Vosges: the Grand Ballon, in ancient times called Ballon de Guebwiller or Ballon de Murbach, rises to 1,424 m. The Col de Saales, between the Higher and Central Vosges, reaches nearly 579 m, both lower and narrower than the Higher Vosges, with Mont Donon at 1,008 m being the highest point of this Nordic section; the highest mountains and peaks of the Vosges are: Grand Ballon 1,424 m Storkenkopf 1,366 m Hohneck 1,363 m Kastelberg 1,350 m Klintzkopf 1,330 m Rothenbachkopf 1,316 m Lauchenkopf 1,314 m Batteriekopf 1,311 m Haut de Falimont 1,306 m Gazon du Faing 1,306 m Rainkopf 1,305 m Gazon du Faîte 1,303 m Ringbuhl 1,302 m Soultzereneck 1,302 m Le Tanet 1,292 m Petit Ballon 1,272 m Ballon d'Alsace 1,247 m Brézouard 1,229 m Ballon de Servance 1,216 m Drumont 1,200 m Planche des Belles Filles 1,148 m Molkenrain 1,123 m Champ du Feu 1,099 m Baerenkopf 1,074 m Rocher de Mutzig 1,010 m Donon 1,009 m Taennchel 992 m Climont 965 m Hartmannswillerkopf 956 m Chatte Pendue 902 m Ungersberg 901 m Tête du Coq