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Přídolí Epoch
In the geologic timescale, the Přídolí Epoch () is the uppermost subdivision of the Silurian Period, dated at between 423 ± 2.3 and 419.2 ± 3.2 mya (million years ago). The Přídolí Epoch succeeds the Ludfordian Stage and precedes the Lochkovian, the lowest of three stages within the Lower Devonian geological epoch. It is named after one locality at the '' Homolka a Přídolí'' nature reserve near the Prague suburb, Slivenec, in the Czech Republic. The GSSP is located within the Požáry Formation, overlying the Kopanina Formation. Přídolí is the old name of a cadastral field area. The Šilalė Event, a negative carbon isotope excursion corresponding to an extinction event of conodonts Conodonts, are an extinct group of marine jawless vertebrates belonging to the Class (biology), class Conodonta (from Ancient Greek κῶνος (''kōnos''), meaning "cone", and ὀδούς (''odoús''), meaning "tooth"). They are primarily known ..., occurred during the early P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Commission On Stratigraphy
The International Commission on Stratigraphy (ICS), sometimes unofficially referred to as the International Stratigraphic Commission, is a daughter or major subcommittee grade scientific organization that concerns itself with stratigraphy, stratigraphical, geology, geological, and chronology, geochronological matters, worldwide. It is the largest subordinate body of the International Union of Geological Sciences (IUGS). The ICS is essentially a permanent working committee, working subcommittee, which meets far more regularly than the quadrennial meetings scheduled by the IUGS, when it meets as a congress or committee, membership of the whole. Aims One of its main aims, a project begun in 1974, is to establish a multidisciplinary standard and global geologic time scale that will ease paleontology, paleontological and geobiology, geobiological comparisons region to region by benchmarks with stringent and rigorous strata criteria called Global Boundary Stratotype Section and Points ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homolka A Přídolí
Homolka is a surname of Czech origin. Notable people with the surname include: * Karla Homolka Karla Leanne Homolka (born May 4, 1970), also known as Karla Leanne Teale, Leanne Teale and Leanne Bordelais, is a Canadian serial killer who acted as an accomplice to her husband, Paul Bernardo, taking active part in the rapes and murders of at ... (born 1970), Canadian serial rapist and killer ** Tammy Homolka (1975–1990), Karla's sister and victim * Oscar Homolka (1898–1978), Austrian-born actor * Walter Homolka (born 1964), German rabbi See also * {{surname, Homolka Czech-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pridoli Epoch
In the geologic timescale, the Přídolí Epoch () is the uppermost subdivision of the Silurian Period, dated at between 423 ± 2.3 and 419.2 ± 3.2 mya (million years ago). The Přídolí Epoch succeeds the Ludfordian Stage and precedes the Lochkovian, the lowest of three stages within the Lower Devonian geological epoch. It is named after one locality at the ''Homolka a Přídolí'' nature reserve near the Prague suburb, Slivenec, in the Czech Republic. The GSSP is located within the Požáry Formation, overlying the Kopanina Formation. Přídolí is the old name of a cadastral field area. The Šilalė Event, a negative carbon isotope excursion corresponding to an extinction event of Conodont, conodonts, occurred during the early Pridoli. References Pridoli epoch, Silurian geochronology Geological epochs {{Geochronology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gondwana 420 Ma
Gondwana ( ; ) was a large landmass, sometimes referred to as a supercontinent. The remnants of Gondwana make up around two-thirds of today's continental area, including South America, Africa, Antarctica, Australia, Zealandia, Arabia, and the Indian subcontinent. Gondwana was formed by the accretion of several cratons (large stable blocks of the Earth's crust), beginning with the East African Orogeny, the collision of India and Madagascar with East Africa, and culminating in with the overlapping Brasiliano and Kuunga orogenies, the collision of South America with Africa, and the addition of Australia and Antarctica, respectively. Eventually, Gondwana became the largest piece of continental crust of the Paleozoic Era, covering an area of some , about one-fifth of the Earth's surface. It fused with Laurasia during the Carboniferous to form Pangaea. It began to separate from northern Pangea (Laurasia) during the Triassic, and started to fragment during the Early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gondwana Research
''Gondwana Research'' is a peer-reviewed scientific journal with an "all earth science" scope and an emphasis on the origin and evolution of continents. It is part of the Elsevier Elsevier ( ) is a Dutch academic publishing company specializing in scientific, technical, and medical content. Its products include journals such as ''The Lancet'', ''Cell (journal), Cell'', the ScienceDirect collection of electronic journals, ... group, published by Journal Center, China University of Geosciences Beijing, 29 Xueyuan Road, Beijing 100083, China. References External links * Geology journals Elsevier academic journals English-language journals {{Geology-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conodont
Conodonts, are an extinct group of marine jawless vertebrates belonging to the class Conodonta (from Ancient Greek κῶνος (''kōnos''), meaning " cone", and ὀδούς (''odoús''), meaning "tooth"). They are primarily known from their hard, mineralised tooth-like structures called "conodont elements" that in life were present in the oral cavity and used to process food. Rare soft tissue remains suggest that they had elongate eel-like bodies with large eyes. Conodonts were a long-lasting group with over 300 million years of existence from the Cambrian (over 500 million years ago) to the beginning of the Jurassic (around 200 million years ago). Conodont elements are highly distinctive to particular species and are widely used in biostratigraphy as indicative of particular periods of geological time. Discovery and understanding of conodonts The teeth-like fossils of the conodont were first discovered by Heinz Christian Pander and the results published in Saint Petersburg, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Šilalė Event
The Šilalė Event was an extinction event affecting conodonts during the Přídolí, the final stage of the Silurian period. Timing The Šilalė Event, first identified in the Milaičiai-103 core in southwestern Lithuania, is marked by a negative carbon isotope excursion in carbonate rocks known as the Šilalė Negative Carbon Isotope Event. This isotopic excursion is also known from the Jočionys-299 borehole in eastern Lithuania, as well as in coeval deposits in the Appalachian Basin of North America and has also been termed the Šilalė Low. The amplitudes of the ~405 Ka long eccentricity cycle were at their lowest point of the entire Přídolí during the Šilalė Event. The end of the Šilalė Event corresponds to the beginning of the ''Delotaxis detorta'' conodont biozone, a conodont biozone once erroneously thought to have corresponded to the latest Přídolí. Effects The Šilalė Event resulted in a decline in conodont diversity and a corresponding increase not just in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cadastral
A cadastre or cadaster ( ) is a comprehensive recording of the real estate or real property's metes and bounds, metes-and-bounds of a country.Jo Henssen, ''Basic Principles of the Main Cadastral Systems in the World,'/ref> Often it is represented graphically in a cadastral map. In most countries, legal systems have developed around the original administrative systems and use the cadastre to define the dimensions and location of land parcels described in legal documentation. A land parcel or cadastral parcel is defined as "a continuous area, or more appropriately volume, that is identified by a unique set of homogeneous property rights". Cadastral surveys document the Boundary (real estate), boundaries of land ownership, by the production of documents, diagrams, sketches, plans (''plats'' in the US), charts, and maps. They were originally used to ensure reliable facts for land valuation and taxation. An example from early England is the Domesday Book in 1086. Napoleon establish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kopanina Formation
Kopanina may refer to the following places in Poland: *Kopanina, part of the Poznań-Grunwald, Grunwald district of Poznań *Kopanina, Leszno County in Greater Poland Voivodeship (west-central Poland) *Kopanina, Szamotuły County in Greater Poland Voivodeship (west-central Poland) *Kopanina, Wągrowiec County in Greater Poland Voivodeship (west-central Poland) *Kopanina, Piotrków County in Łódź Voivodeship (central Poland) *Kopanina, Sieradz County in Łódź Voivodeship (central Poland) *Kopanina, Lower Silesian Voivodeship (south-west Poland) *Kopanina, Opole Voivodeship (south-west Poland) *Kopanina, Silesian Voivodeship (south Poland) *Kopanina, Świętokrzyskie Voivodeship (south-central Poland) {{geodis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slivenec
Slivenec is a municipal district (''městská část'') in Prague, Czech Republic The Czech Republic, also known as Czechia, and historically known as Bohemia, is a landlocked country in Central Europe. The country is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the south .... Demographics References Districts of Prague {{Prague-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nature Reserve
A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, funga, or features of geological or other special interest, which is reserved and managed for purposes of Conservation (ethic), conservation and to provide special opportunities for study or research. They may be designated by government institutions in some countries, or by private landowners, such as charities and research institutions. Nature reserves fall into different IUCN protected area categories, IUCN categories depending on the level of protection afforded by local laws. Normally it is more strictly protected than a nature park. Various jurisdictions may use other terminology, such as ecological protection area or private protected area in legislation and in official titles of the reserves. History Cultural practices that roughly equate to the establishmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
