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Apuan Alps
The Apuan Alps ( it, Alpi Apuane) are a mountain range in northern Tuscany, Italy. They are included between the valleys of the Serchio and Magra rivers, and, to the northwest, the Garfagnana and Lunigiana, with a total length of approximately . The name derives from the Apuani Ligures tribe that lived there in ancient times. The mountain range is known for its Carrara marble. Due to its extraction height environmental impact, the No Cav movement strongly opposes this activity. Geology and geography The chain formed out of sea sediments in the middle Triassic period, somewhat earlier than the rest of the Apennines, and on a rather different geological structure. Over time, these sediments hardened into limestone, dolomite, sandstone, and shale. Harsh pressure approximately 25 million years ago transformed the limestone in many places into the Carrara marble (named for the nearby city of Carrara) for which the range is renowned. Erosion carved much of the remaining sedimentary r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pietrasanta
Pietrasanta is a town and ''comune'' on the coast of northern Tuscany in Italy, in the province of Lucca. Pietrasanta is part of Versilia, on the last foothills of the Apuan Alps, about north of Pisa. The town is located off the coast, where the ''frazione'' of Marina di Pietrasanta is located. It lies on the main road and rail link from Pisa to Genova, just north of Viareggio. History The town has Roman origins and part of the Roman wall still exists. The medieval town was founded in 1255 upon the pre-existing "Rocca di Sala" fortress of the Lombards by Luca Guiscardo da Pietrasanta, from whom it got its name. Pietrasanta was at its height a part of the Republic of Genoa (1316–1328). The town is first mentioned in 1331 in records of Genoa, when it became a part of the Lucca along with the river port of Motrone, and was held until 1430. At that time it passed back to Genoa until 1484, when it was annexed to the Medici held seigniory of Florence. In 1494, Charles VIII o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triassic
The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period of the Mesozoic Era. Both the start and end of the period are marked by major extinction events. The Triassic Period is subdivided into three epochs: Early Triassic, Middle Triassic and Late Triassic. The Triassic began in the wake of the Permian–Triassic extinction event, which left the Earth's biosphere impoverished; it was well into the middle of the Triassic before life recovered its former diversity. Three categories of organisms can be distinguished in the Triassic record: survivors from the extinction event, new groups that flourished briefly, and other new groups that went on to dominate the Mesozoic Era. Reptiles, especially archosaurs, were the chief terrestrial vertebrates during this time. A specialized subgroup of archo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monte Sagro
Monte Sagro is a mountain in the Alpi Apuane, in Tuscany, central Italy, overlooking the city of Carrara. It is located in the northern part of the range, and, being mostly composed of marble of renowned quality, is home to several quarries. The name (meaning "holy") identifies it as a sacred place for the ancient Liguri The Ligures (singular Ligur; Italian: liguri; English: Ligurians) were an ancient people after whom Liguria, a region of present-day north-western Italy, is named. Ancient Liguria corresponded more or less to the current Italian regio ... tribe, together with the Monte Bego at the modern boundary between France and Italy. {{DEFAULTSORT:Sagro Mountains of Tuscany Mountains of the Apennines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pania Della Croce
{{Infobox mountain , name = Pania della Croce , photo = Pania della Croce.JPG , photo_caption = Pania della Croce seen from Volegno, in the upper Versilia. , elevation_m = 1858 , elevation_ref = , prominence = , location = Tuscany, Italy , range = Alpi Apuane , coordinates = {{coord, 44, 02, 12, N, 10, 19, 25, E , first_ascent = , easiest_route = Pania della Croce is a mountain (1,858 m) in the Alpi Apuane, in Tuscany, central Italy. It is the highest peak in the Panie Group (''Gruppo delle Panie''), located not far from the Tyrrhenian Sea coast. On very clear days Monviso, (in Piedmont), Monte Amiata and Corsica Corsica ( , Upper , Southern ; it, Corsica; ; french: Corse ; lij, Còrsega; sc, Còssiga) is an island in the Mediterranean Sea and one of the 18 regions of France. It is the fourth-largest island in the Mediterranean and lies southeast of ... can all be seen from its summit, together with the tyrrhenian coastline. Mountains of Tuscany M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monte Cavallo (Alpi Apuane)
Monte Cavallo is a ''comune'' (municipality) in the Province of Macerata in the Italian region Marche, located about southwest of Ancona and about southwest of Macerata. Monte Cavallo borders the following municipalities: Pieve Torina, Serravalle di Chienti, Visso Visso is a ''comune'' (municipality) in the Province of Macerata in the Italian region Marche, located about southwest of Ancona and about southwest of Macerata. It houses the seat of Monti Sibillini National Park. Main sights * San Giacomo c .... Demographic evolution Colors= id:lightgrey value:gray(0.9) id:darkgrey value:gray(0.8) id:sfondo value:rgb(1,1,1) id:barra value:rgb(0.6,0.7,0.8) ImageSize = width:455 height:303 PlotArea = left:50 bottom:50 top:30 right:30 DateFormat = x.y Period = from:0 till:2000 TimeAxis = orientation:vertical AlignBars = justify ScaleMajor = gridcolor:darkgrey increment:1000 start:0 ScaleMinor = gridcolor:lightgrey increment:200 start:0 BackgroundColors = c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monte Tambura
Monte Tambura is a mountain (1,891 m) in the Alpi Apuane, in Tuscany, central Italy. It is the second highest peak in the chain after Monte Pisanino. Located on the boundary between the province of Lucca and the province of Massa-Carrara The province of Massa-Carrara ( it, provincia di Massa-Carrara) is a province in the Tuscany region of central Italy. It is named after the provincial capital Massa, and Carrara, the other main town in the province. History The province of "Ma ..., the Tambura is part of the Natural Regional Park of the Alpi Apuane. {{DEFAULTSORT:Tambura Mountains of Tuscany Mountains of the Apennines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marble
Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or Dolomite (mineral), dolomite. Marble is typically not Foliation (geology), foliated (layered), although there are exceptions. In geology, the term ''marble'' refers to metamorphosed limestone, but its use in stonemasonry more broadly encompasses unmetamorphosed limestone. Marble is commonly used for Marble sculpture, sculpture and as a building material. Etymology The word "marble" derives from the Ancient Greek (), from (), "crystalline rock, shining stone", perhaps from the verb (), "to flash, sparkle, gleam"; Robert S. P. Beekes, R. S. P. Beekes has suggested that a "Pre-Greek origin is probable". This Stem (linguistics), stem is also the ancestor of the English language, English word "marmoreal," meaning "marble-like." While the English term "marble" resembles the French language, French , most other European languages (with words like "marmoreal") more closely resemb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karst
Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant rocks, such as quartzite, given the right conditions. Subterranean drainage may limit surface water, with few to no rivers or lakes. However, in regions where the dissolved bedrock is covered (perhaps by debris) or confined by one or more superimposed non-soluble rock strata, distinctive karst features may occur only at subsurface levels and can be totally missing above ground. The study of ''paleokarst'' (buried karst in the stratigraphic column) is important in petroleum geology because as much as 50% of the world's hydrocarbon reserves are hosted in carbonate rock, and much of this is found in porous karst systems. Etymology The English word ''karst'' was borrowed from German in the late 19th century, which entered German much earlier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carrara
Carrara ( , ; , ) is a city and ''comune'' in Tuscany, in central Italy, of the province of Massa and Carrara, and notable for the white or blue-grey marble quarried there. It is on the Carrione River, some Boxing the compass, west-northwest of Florence. Its motto is ''Fortitudo mea in rota'' (Latin: "My strength is in the wheel"). Toponymy The word ''Carrara'' likely comes from the pre-Roman (Celtic languages, Celtic or Ligurian language (ancient), Ligurian) element ''kar'' (stone), through Latin ''carrariae'' meaning 'quarries'. History There were known settlements in the area as early as the ninth century BC, when the Apuan Ligures lived in the region. The current town originated from the borough built to house workers in the marble quarries created by the ancient Rome, Romans after their conquest of Liguria in the early second century BC. Carrara has been linked with the process of quarrying and carving marble since the Roman Age. Marble was exported from the nearby ha ... [...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] |
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] |
Dolomite (rock)
Dolomite (also known as dolomite rock, dolostone or dolomitic rock) is a sedimentary carbonate rock that contains a high percentage of the mineral dolomite, CaMg(CO3)2. It occurs widely, often in association with limestone and evaporites, though it is less abundant than limestone and rare in Cenozoic rock beds (beds less than about 66 million years in age). The first geologist to distinguish dolomite rock from limestone was Belsazar Hacquet in 1778. Most dolomite was formed as a magnesium replacement of limestone or of lime mud before lithification. The geological process of conversion of calcite to dolomite is known as dolomitization and any intermediate product is known as dolomitic limestone. The "dolomite problem" refers to the vast worldwide depositions of dolomite in the past geologic record in contrast to the limited amounts of dolomite formed in modern times. Recent research has revealed sulfate-reducing bacteria living in anoxic conditions precipitate dolomite which ind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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