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La Grive-Saint-Alban
{{Infobox rockunit , name = La Grive-Saint-Alban , image = , caption = , type = Geological formation , age = {{fossilrange, Miocene , period = Miocene , prilithology = Karstic limestone , otherlithology = , namedfor = Saint-Alban-de-Roche , namedby = , region = {{Flag, Auvergne-Rhône-Alpes , country = {{flag, France , coordinates = {{coord, 45.595397, N, 5.224183, E, source:wikidata, display=inline,title , paleocoordinates = , unitof = , subunits = , underlies = , overlies = , thickness = , extent = , area = , map = {{Location map+ , France , relief = 1 , width = 250 , float = center , places = {{Location map~ , France , lat_deg = 45.595397 , lon_deg = 5.224183 , mark = Cyan pog.svg , marksize = 12 , map_caption = La Grive-Saint-Alban is a geomorphological karstic site located on the territory of the French commune of Saint-Alban-de-Roche, in the Isère department. This area, long exploited for its red clay, is known since ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological Formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by Abraham Gottlob Wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silt
Silt is granular material of a size between sand and clay and composed mostly of broken grains of quartz. Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension with water. Silt usually has a floury feel when dry, and lacks plasticity when wet. Silt also can be felt by the tongue as granular when placed on the front teeth (even when mixed with clay particles). Silt is a common material, making up 45% of average modern mud. It is found in many river deltas and as wind-deposited accumulations, particularly in central Asia, north China, and North America. It is produced in both very hot climates (through such processes as collisions of quartz grains in dust storms) and very cold climates (through such processes as glacial grinding of quartz grains.) Loess is soil rich in silt which makes up some of the most fertile agricultural land on Earth. However, silt is very vulnerable to erosion, and it has poor mechanical properties, making construction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Depéret
Charles Jean Julien Depéret (25 June 1854 – 18 May 1929) was a French geologist and paleontologist. He was a member of the French Academy of Sciences, the Société géologique de FranceObituary at ''Annales des Mines'' and dean of the Science faculty of .Obituary at ''Les Études rhodaniennes'', Year 1929, Vol. 5, Issue 5-2, pp. 342-343 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagrivea
''Lagrivea'' is a fossil genus of squirrel from the Middle Miocene of France. The single species, ''L. vireti'', is known from three mandibles (lower jaws) and two isolated teeth. All come from the fissure filling (a fossil deposit formed when a rock fissure filled with sediment) of La Grive L5, part of the La Grive-Saint-Alban complex in Saint-Alban-de-Roche, southeastern France. ''Lagrivea'' was a large tree squirrel with flat lower incisors and a large, triangular fourth lower premolar (p4). Each of the four cheekteeth (p4 and three molars, m1 through m3) bears a deep basin in the middle of the crown. The m3 is about rectangular in shape, but rounded at the back. Although m1 and m2 have two roots, m3 has three. Taxonomy Pierre Mein and Léonard Ginsburg described ''Lagrivea vireti'' in 2002 in a review of the ages and faunas of the Miocene fossil sites of La Grive-Saint-Alban in southeastern France.Mein and Ginsburg, 2002, p. 29 They suggested that it was probably a tree sq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant Squirrel
Oriental giant squirrels are cat-sized tree squirrels from the genus ''Ratufa'' in the subfamily Ratufinae. They are a distinctive element of the fauna of south and southeast Asia. Species There are four living species of oriental giant squirrels: In prehistoric times this lineage was more widespread. For example, animals very similar to ''Ratufa'' and possibly belonging to this genus, at least belonging to the Ratufinae, were part of the early Langhian (Middle Miocene, some 16–15.2 million years ago) Hambach fauna of Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe .... References Mammals of Asia * Langhian first appearances Extant Miocene first appearances Taxa named by John Edward Gray {{Squirrel-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleontological Site Of Sansan
Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossils to classify organisms and study their interactions with each other and their environments (their paleoecology). Paleontological observations have been documented as far back as the 5th century BC. The science became established in the 18th century as a result of Georges Cuvier's work on comparative anatomy, and developed rapidly in the 19th century. The term itself originates from Greek (, "old, ancient"), (, (gen. ), "being, creature"), and (, "speech, thought, study"). Paleontology lies on the border between biology and geology, but differs from archaeology in that it excludes the study of anatomically modern humans. It now uses techniques drawn from a wide range of sciences, including biochemistry, mathematics, and engineering. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Collonges-au-Mont-d'Or
Collonges-au-Mont-d'Or (; frp, Colonges) is a commune in the Metropolis of Lyon, Auvergne-Rhône-Alpes region, eastern France. It is the site of L'Auberge du Pont de Collonges, the restaurant of chef Paul Bocuse Paul Bocuse (; 11 February 1926 – 20 January 2018) was a French chef based in Lyon who was known for the high quality of his restaurants and his innovative approaches to cuisine. A student of Eugénie Brazier, he was one of the most prominent .... References Communes of Lyon Metropolis Lyonnais {{Rhône-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flying Squirrel
Flying squirrels (scientifically known as Pteromyini or Petauristini) are a tribe of 50 species of squirrels in the family Sciuridae. Despite their name, they are not in fact capable of full flight in the same way as birds or bats, but they are able to glide from one tree to another with the aid of a patagium, a furred parachute-like skin membrane that stretches from wrist to ankle. Their long tails also provide stability as they glide. Anatomically they are very similar to other squirrels with a number of adaptations to suit their lifestyle; their limb bones are longer and their hand bones, foot bones, and distal vertebrae are shorter. Flying squirrels are able to steer and exert control over their glide path with their limbs and tail. Molecular studies have shown that flying squirrels are monophyletic and originated some 18–20 million years ago. The genus Paracitellus is the earliest lineage to the flying squirrel dating back to the late Oligocene era. Most are nocturnal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
