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Pelso Unit
Pelso Plate or Pelsonia Terrane is a small tectonic unit. It is situated in the Pannonian Basin in Europe. The Carpathian Mountains and the basin surrounded by them were formed from the Cretaceous until the Miocene in the collision of continental Europe with smaller continental fragments of ALCAPA, Tisza, Pelso and Dacia microplates. The Zagreb- Hernád line is the former plate margin between the Pelso of African origin and the Tisza Plate of Eurasian origin. The Pelso block is sometimes considered as southern portion of the ALCAPA and compared with internal zone of Western Carpathian Mts. which is called Internal Western Capathians. The typical feature of this zone is Dinaric - Apulian facies of Triassic rocks, while the whole Alcapa is in some papers considered as part of the Apulian plate. The Pelso ''sensu stricto'' is therefore composed of Tornaic, Bukkic and Silicic Silicic is an adjective to describe magma or igneous rock rich in silica. The amount of silica that con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Slovakia
The geology of Slovakia is structurally complex, with a highly varied array of mountain ranges and belts largely formed during the Paleozoic, Mesozoic and Cenozoic eras. Stratigraphy, tectonics & geologic history Most of Slovakia is situated within the West Carpathian orogenic belt, except for the east of the country which is in the East Carpathians. The Transdanubian Mid-Mountain Range occupies a small area in the south, forming the basement rocks of the Danube Basin. The Eastern Alps-Western Carpathian boundary runs through Slovakia. Outer Western Carpathians *Carpathian Foredeep: Foredeeps formed during the Hercynian orogeny, filled with sedimentary rocks from the Carboniferous through the Oligocene. A Miocene-age nappe, made up of folded Cretaceous and Paleogene sedimentary rocks, known as the Flysch Belt covers most of the foredeep. *Pieniny Klippen Belt: A narrow 15 kilometer wide highly compressed zone with layers of Jurassic-Lower Cretaceous limestone "klippen" surround ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Hungary
Hungary is in the Pannonian Basin in Central Europe, is surrounded by the Carpathians, Alps and Dinarides, but for the most part dominated by lowlands. Sixty-eight percent of the country is lowlands below 200 meters altitude. Hilly terrain covers 30% of the country, while mountains cover only 2%. The entire Pannonian Basin is in the Danube watershed. Tectonics and bedrock geology Hungary is mostly defined by Late Cenozoic geologic evolution. Large back-arc basins formed due to anomalous crust thinning and a high geothermal gradient. The Pannonian Basin is actually a system of basins, including the Great Plain Basin, the Vienna Basin, the Drava Basin and the Transylvanian Basin. The different sub-basins are separated by inselberg ranges, made of Paleozoic, Mesozoic, and Paleogene sedimentary rocks and Cenozoic igneous and sedimentary rocks. The Eastern Alps extend into the northwest of Hungary as the Sopron and Kőszeg mountains, near the Austrian border and are made up of metamorp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenozoic Geology
The Cenozoic ( ; ) is Earth's current geological era, representing the last 66million years of Earth's history. It is characterised by the dominance of mammals, birds and flowering plants, a cooling and drying climate, and the current configuration of continents. It is the latest of three geological eras since complex life evolved, preceded by the Mesozoic and Paleozoic. It started with the Cretaceous–Paleogene extinction event, when many species, including the non-avian dinosaurs, became extinct in an event attributed by most experts to the impact of a large asteroid or other celestial body, the Chicxulub impactor. The Cenozoic is also known as the Age of Mammals because the terrestrial animals that dominated both hemispheres were mammalsthe eutherians (placentals) in the northern hemisphere and the metatherians (marsupials, now mainly restricted to Australia) in the southern hemisphere. The extinction of many groups allowed mammals and birds to greatly diversify so that larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tectonic Plates
Plate tectonics (from the la, label=Late Latin, tectonicus, from the grc, τεκτονικός, lit=pertaining to building) is the generally accepted scientific theory that considers the Earth's lithosphere to comprise a number of large tectonic plates which have been slowly moving since about 3.4 billion years ago. The model builds on the concept of ''continental drift'', an idea developed during the first decades of the 20th century. Plate tectonics came to be generally accepted by geoscientists after seafloor spreading was validated in the mid to late 1960s. Earth's lithosphere, which is the rigid outermost shell of the planet (the crust and upper mantle), is broken into seven or eight major plates (depending on how they are defined) and many minor plates or "platelets". Where the plates meet, their relative motion determines the type of plate boundary: '' convergent'', '' divergent'', or ''transform''. Earthquakes, volcanic activity, mountain-building, and oceanic tren ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of The Carpathians
Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology, and so is treated as one major aspect of integrated Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface, and the processes that have shaped that structure. It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth. Geology provides the primary evidence for plate tectonics, the evolutionary history of life, and the Earth's past climates. Geologists broadly study the properties and processes of Earth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silicic (tectonic Unit)
Silicic is an adjective to describe magma or igneous rock rich in silica. The amount of silica that constitutes a silicic rock is usually defined as at least 63 percent. Granite and rhyolite are the most common silicic rocks. Silicic is the group of silicate magmas which will eventually crystallise a relatively small proportion of ferromagnesian silicates, such as amphibole, pyroxene, and biotite. The main constituents of a silicic rock will be minerals rich in silica-minerals, like silicic feldspar or even free silica as quartz. Example The " Shammar group" is a silicic and volcaniclastic sequence in northwestern Saudi Arabia. See also *Felsic *Mafic A mafic mineral or rock is a silicate mineral or igneous rock rich in magnesium and iron. Most mafic minerals are dark in color, and common rock-forming mafic minerals include olivine, pyroxene, amphibole, and biotite. Common mafic rocks include ... References Igneous rocks {{igneous-rock-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apulian Plate
The Adriatic or Apulian Plate is a small tectonic plate carrying primarily continental crust that broke away from the African Plate along a large transform fault in the Cretaceous period. The name Adriatic Plate is usually used when referring to the northern part of the plate. This part of the plate was deformed during the Alpine orogeny, when the Adriatic/Apulian Plate collided with the Eurasian Plate. The Adriatic/Apulian Plate is thought to still move independently of the Eurasian Plate in NNE direction with a small component of counter-clockwise rotation. The fault zone that separates the two is the Periadriatic Seam that runs through the Alps. Studies indicate that in addition to deforming, the Eurasian continental crust has actually subducted to some extent below the Adriatic/Apulian Plate, an unusual circumstance in plate tectonics. Oceanic crust of the African Plate is also subducting under the Adriatic/Apulian Plate off the western and southern coasts of the Italia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pannonian Basin
The Pannonian Basin, or Carpathian Basin, is a large Sedimentary basin, basin situated in south-east Central Europe. The Geomorphology, geomorphological term Pannonian Plain is more widely used for roughly the same region though with a somewhat different sense, with only the Upland and lowland, lowlands, the plain that remained when the Pliocene Epoch ''Pannonian Sea'' dried out. It is a geomorphological subsystem of the Alpide belt, Alps-Himalaya system, specifically a sediment-filled back-arc basin which divergent boundary, spread apart during the Miocene. The plain or basin is diagonally bisected by the Transdanubian Mountains, separating the larger Great Hungarian Plain (including the Eastern Slovak Lowland) from the Little Hungarian Plain. It forms a topographically discrete unit set in the European landscape, surrounded by imposing geographic boundaries—the Carpathian Mountains and the Alps. The Rivers Danube and Tisza divide the basin roughly in half. It extends rough ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
