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Pointe De Givet National Nature Reserve
The Pointe de Givet National Nature Reserve (RNN145) is a national nature reserve of the Grand Est region of France. Established in 1999, it spreads over 354 hectares and protects a group of sites recognised for their rich geology, flora and fauna. Localisation At the northern end of the Ardennes department, the nature reserve territory consists of 11 entities localized on the communes of Charnois, Chooz, Foisches, Fromelennes, Givet, and Rancennes for a total area of 354 hectares. History of site and reserve The sector has been known by naturalists since at least the 19th century for its geological riches and flora. To protect this deteriorating heritage, "La Valenne" association solicited the classification as national nature reserve of the most notable natural environments of the site known as ''Pointe de Givet'' in 1990. The classification procedure succeeded in 1999, and governing bodies (National Forests Office and Conservatory of Natural Areas of Champagne-Ardenn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ardennes (département)
Ardennes () is a department in the region of northeastern France named after the broader Ardennes. Its prefecture is the town Charleville-Mézières. The department has 270,582 inhabitants.Populations légales 2019: 08 Ardennes INSEE The inhabitants of the department are known as or . Geography Political geography The department of Ardennes is bounded by Aisne to the west, to the south, |
Antennaria
''Antennaria'' is a genus of dioecious perennial herbs in the family Asteraceae, native to temperate regions of the Northern Hemisphere, with a few species (''A. chilensis'', ''A. linearifolia'', ''A. sleumeri'') in temperate southern South America; the highest species diversity is in North America. Common names include catsfoot or cat's-foot, pussytoes and everlasting. Different ''Antennaria'' species reach between 10 cm and 50 cm in height. The leaves are basal and often stem leaves. The name ''Antennaria'' refers to the projecting stamens seen on the male flowers of some species, resembling insect antennae. ''Antennaria'' species are used as food plants by the larvae of some Lepidoptera species including ''Vanessa virginiensis The American painted lady or American lady (''Vanessa virginiensis'') [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cotoneaster Integerrimus
''Cotoneaster integerrimus'', the common cotoneaster, is a species of '' Cotoneaster'' native to central and eastern Europe and southwest Asia, from southern Belgium and eastern France south to Italy, and east through Germany to the Balkans, northern Turkey, the Crimea, the Caucasus and northern Iran; plants in Spain may also belong in this species. In the past, it was treated in a wider sense, including plants from Wales now split off as ''Cotoneaster cambricus'' and plants from Scandinavia now treated as '' Cotoneaster scandinavicus'', but differs from these in genetic profile and detail of foliage and fruit. It is a deciduous shrub growing to tall. The leaves are oval to oval-acute, long, green and thinly pubescent above at first, later glabrous, and densely pubescent below and on the leaf margin, with pale grey hairs. The flowers are produced in corymbs of one to four (occasionally up to seven) together in mid spring, each flower diameter, with five white to pale pink peta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artemisia Alba
''Artemisia alba'', called white mugwort, white wormwood, white artemisia, or camphor southernwood, is a species of ''Artemisia'' native to Spain, France, Belgium, Italy, Sicily, Czechoslovakia, Hungary, Romania, and the Balkans. Its currently unrecognized subtaxon ''Artemisia alba'' 'Canescens' has gained the Royal Horticultural Society's Award of Garden Merit. Subspecies The following subspecies are currently accepted: *''Artemisia alba'' subsp. ''alba'' *''Artemisia alba'' subsp. ''chitachensis'' *''Artemisia alba'' subsp. ''glabrescens'' (Willk.) Valdés Berm. *''Artemisia alba'' subsp. ''kabylica'' (Chabert) Greuter References {{Taxonbar, from=Q669023 alba ''Alba'' ( , ) is the Scottish Gaelic name for Scotland. It is also, in English language historiography, used to refer to the polity of Picts and Scots united in the ninth century as the Kingdom of Alba, until it developed into the Kingdom ... Plants described in 1764 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Champagne-Ardenne
Champagne-Ardenne () is a former administrative region of France, located in the northeast of the country, bordering Belgium. Mostly corresponding to the historic province of Champagne, the region is known for its sparkling white wine of the same name. The administrative region was formed in 1956, consisting of the four departments Aube, Ardennes, Haute-Marne, and Marne. On 1 January 2016, it merged with the neighboring regions of Alsace and Lorraine to form the new region Grand Est, thereby ceasing to exist as an independent entity. Its rivers, most of which flow west, include the Seine, the Marne, and the Aisne. The Meuse flows north. Transportation Highways * A4 connecting Paris and Strasbourg and serving the Reims metropolitan area * A5 connecting Paris and Dijon and serving Troyes and Chaumont * A26 connecting Calais and Troyes and serving Reims and Châlons-en-Champagne * A34 connecting Reims and the Belgian border and serving Charleville-Mézières Rail The rail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trilobite
Trilobites (; meaning "three lobes") are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period () and they flourished throughout the lower Paleozoic before slipping into a long decline, when, during the Devonian, all trilobite orders except the Proetida died out. The last extant trilobites finally disappeared in the mass extinction at the end of the Permian about 252 million years ago. Trilobites were among the most successful of all early animals, existing in oceans for almost 270 million years, with over 22,000 species having been described. By the time trilobites first appeared in the fossil record, they were already highly diversified and geographically dispersed. Because trilobites had wide diversity and an easily fossilized exoskeleton, they left an extensive fossil record. The stu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluorite
Fluorite (also called fluorspar) is the mineral form of calcium fluoride, CaF2. It belongs to the halide minerals. It crystallizes in isometric cubic habit, although octahedral and more complex isometric forms are not uncommon. The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 4 as fluorite. Pure fluorite is colourless and transparent, both in visible and ultraviolet light, but impurities usually make it a colorful mineral and the stone has ornamental and lapidary uses. Industrially, fluorite is used as a flux for smelting, and in the production of certain glasses and enamels. The purest grades of fluorite are a source of fluoride for hydrofluoric acid manufacture, which is the intermediate source of most fluorine-containing fine chemicals. Optically clear transparent fluorite lenses have low dispersion, so lenses made from it exhibit less chromatic aberration, making them valuable in microscopes and telescopes. Fluorite optics are also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.Blatt, Harvey and Robert J. Tracy (1996) ''Petrology: Igneous, Sedimentary and Metamorphic'', 2nd ed., Freeman, pp. 281–292 Shale is characterized by its tendency to split into thin layers ( laminae) less than one centimeter in thickness. This property is called '' fissility''. Shale is the most common sedimentary rock. The term ''shale'' is sometimes applied more broadly, as essentially a synonym for mudrock, rather than in the more narrow sense of clay-rich fissile mudrock. Texture Shale typically exhibits varying degrees of fissility. Because of the parallel orientation of clay mineral flakes in shale, it breaks into thin layers, often splintery and usually parallel to the otherwise indistinguishable beddin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jules Gosselet
Jules-Auguste Gosselet (19 April 1832 – 20 March 1916) was a French geologist born in Cambrai, France.Prix Gosselet - Société géologique de France (biography) Following unsuccessful studies of , and a stint as a teacher at the Lycée du Quesnoy, he pursued a career in natural history. In 1853 he became a preparateur of |
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