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Zachełmie, Świętokrzyskie Voivodeship
Zachełmie is a village in the administrative district of Gmina Zagnańsk, within Kielce County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately east of Zagnańsk and north-east of the regional capital Kielce. Zachełmie Quarry A former limestone quarry is located near the village. The rocks are part of the Świętokrzyskie Mountains, Świętokrzyskie (Holy Cross) Mountains, once on the southern coast of Laurasia, and have yielded 395-million-year-old fossil footprints of tetrapods. These are believed to be the oldest tracks of four-legged animals known to palaeontologists, pushing back their estimated evolution by more than 18 million years. The finding also suggests that the first vertebrates to walk on land may have evolved in marine tidal flats or lagoons, likely dining on animals washed up with the tides, rather than in freshwater habitats. References Villages in Kielce County {{Kielce-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Church (building)
A church, church building, church house, or chapel is a building used for Christian worship church service, services and Christian religion, Christian activities. The earliest identified Christian church is a house church founded between 233 AD and 256 AD. ''Church'' is also used to describe a Church (congregation), body or an assembly of Christian believers, while "the Church" may be used to refer to the worldwide Christian religious community as a whole. In traditional Christian architecture, the plan view of a church often forms a Christian cross with the centre aisle and seating representing the vertical beam and the Church architecture#Characteristics of the early Christian church building, bema and altar forming the horizontal. Towers or domes may inspire contemplation of the heavens. Modern churches have a variety of architectural styles and layouts. Some buildings designed for other purposes have been converted to churches, while many original church buildings have bee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Świętokrzyskie Mountains
The Świętokrzyskie Mountains (, ), often anglicized to Holy Cross Mountains, are a mountain range in central Poland, near the city of Kielce. The mountain range comprises several lesser ranges, the highest of which is Łysogóry (literally "Bald Mountains"). The two highest peaks are Łysica, 614 m (2014.44 ft), and Łysa Góra, 594 m (1948.81 ft). Together with the Jura Krakowsko-Częstochowska and some other regions, the mountains form a region called the Lesser-Poland Upland (''Wyżyna Małopolska''). Geologically speaking, the Holy Cross Mountains possess also a margin which extends further than the mountains themselves; the Owadów–Brzezinki palaeontological site is situated in the margin of the Holy Cross Mountains, but not in the mountains themselves. They cover an area of 1684 km2 (650 mi2). The approximate location is . Prehistory The Świętokrzyskie Mountains are one of the oldest mountain ranges in Europe. They were forme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. The term excludes seawater and brackish water, but it does include non-salty mineral-rich waters, such as chalybeate springs. Fresh water may encompass frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranean rivers and lakes. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of vascular plants and most insects, amphibians, reptiles, mammals and birds need fresh water to survive. Fresh water is the water resource that is of the most and immediate use to humans. Fresh water is n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagoon
A lagoon is a shallow body of water separated from a larger body of water by a narrow landform, such as reefs, barrier islands, barrier peninsulas, or isthmuses. Lagoons are commonly divided into ''coastal lagoons'' (or ''barrier lagoons'') and ''atoll lagoons''. They have also been identified as occurring on mixed-sand and gravel coastlines. There is an overlap between bodies of water classified as coastal lagoons and bodies of water classified as Estuary, estuaries. Lagoons are common coastal features around many parts of the world. Definition and terminology Lagoons are shallow, often elongated bodies of water separated from a larger body of water by a shallow or exposed shoal, reef, coral reef, or similar feature. Some authorities include fresh water bodies in the definition of "lagoon", while others explicitly restrict "lagoon" to bodies of water with some degree of salinity. The distinction between "lagoon" and "estuary" also varies between authorities. Richard A. Davis J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tidal Flat
Mudflats or mud flats, also known as tidal flats or, in Ireland, slob or slobs, are coastal wetlands that form in intertidal areas where sediments have been deposited by tides or rivers. A global analysis published in 2019 suggested that tidal flat ecosystems are as extensive globally as mangroves, covering at least of the Earth's surface. / They are found in sheltered areas such as bays, bayous, lagoons, and estuaries; they are also seen in freshwater lakes and salty lakes (or inland seas) alike, wherein many rivers and creeks end. Mudflats may be viewed geologically as exposed layers of bay mud, resulting from deposition of estuarine silts, clays and aquatic animal detritus. Most of the sediment within a mudflat is within the intertidal zone, and thus the flat is submerged and exposed approximately twice daily. A recent global remote sensing analysis estimated that approximately 50% of the global extent of tidal flats occurs within eight countries (Indonesia, China, Aus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nature (journal)
''Nature'' is a British weekly scientific journal founded and based in London, England. As a multidisciplinary publication, ''Nature'' features Peer review, peer-reviewed research from a variety of academic disciplines, mainly in science and technology. It has core editorial offices across the United States, continental Europe, and Asia under the international scientific publishing company Springer Nature. ''Nature'' was one of the world's most cited scientific journals by the Science Edition of the 2022 ''Journal Citation Reports'' (with an ascribed impact factor of 50.5), making it one of the world's most-read and most prestigious academic journals. , it claimed an online readership of about three million unique readers per month. Founded in the autumn of 1869, ''Nature'' was first circulated by Norman Lockyer and Alexander MacMillan (publisher), Alexander MacMillan as a public forum for scientific innovations. The mid-20th century facilitated an editorial expansion for the j ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evolution
Evolution is the change in the heritable Phenotypic trait, characteristics of biological populations over successive generations. It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. The process of evolution has given rise to biodiversity at every level of biological organisation. The scientific theory of evolution by natural selection was conceived independently by two British naturalists, Charles Darwin and Alfred Russel Wallace, in the mid-19th century as an explanation for why organisms are adapted to their physical and biological environments. The theory was first set out in detail in Darwin's book ''On the Origin of Species''. Evolution by natural selection is established by observable facts about living organisms: (1) more offspring are often produced than can possibly survive; (2) phenotypic variatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeontologist
Paleontology, also spelled as palaeontology or palæontology, is the scientific study of the life of the past, mainly but not exclusively through the study of fossils. Paleontologists use fossils as a means to classify organisms, measure geologic time, and assess the interactions between prehistoric organisms and their natural environment. While paleontological observations are known from at least the 6th century BC, the foundation of paleontology as a science dates back to the work of Georges Cuvier in 1796 in paleontology, 1796. Cuvier demonstrated evidence for the concept of extinction and how life of the past was not necessarily the same as that of the present. The field developed rapidly over the course of the following decades, and the French word ''paléontologie'' was introduced for the study in 1822 in paleontology, 1822, which was derived from the Ancient Greek word for "ancient" and words describing relatedness and a field of study. Further advances in the field accom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetrapod
A tetrapod (; from Ancient Greek :wiktionary:τετρα-#Ancient Greek, τετρα- ''(tetra-)'' 'four' and :wiktionary:πούς#Ancient Greek, πούς ''(poús)'' 'foot') is any four-Limb (anatomy), limbed vertebrate animal of the clade Tetrapoda (). Tetrapods include all Neontology#Extant taxa versus extinct taxa, extant and Extinction, extinct amphibians and amniotes, with the latter in turn Evolution, evolving into two major clades, the Sauropsida, sauropsids (reptiles, including dinosaurs and therefore birds) and synapsids (extinct pelycosaur, "pelycosaurs", therapsids and all extant mammals, including Homo sapiens, humans). Hox gene mutations have resulted in some tetrapods becoming Limbless vertebrate, limbless (snakes, legless lizards, and caecilians) or two-limbed (cetaceans, sirenians, Bipedidae, some lizards, kiwi (bird), kiwis, and the extinct moa and elephant birds). Nevertheless, they still qualify as tetrapods through their ancestry, and some retain a pair of ves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laurasia
Laurasia () was the more northern of two large landmasses that formed part of the Pangaea supercontinent from around ( Mya), the other being Gondwana. It separated from Gondwana (beginning in the late Triassic period) during the breakup of Pangaea, drifting further north after the split and finally broke apart with the opening of the North Atlantic Ocean 56 Mya. The name is a portmanteau of Laurentia and Eurasia. Laurentia, Avalonia, Baltica, and a series of smaller terranes, collided in the Caledonian orogeny c. 400 Mya to form Laurussia. Laurussia then collided with Gondwana to form Pangaea. Kazakhstania and Siberia were then added to Pangaea 290–300 Mya to form Laurasia. Laurasia finally became an independent continental mass when Pangaea broke up into Gondwana and Laurasia. Terminology and origin of the concept Laurentia, the Palaeozoic core of North America and continental fragments that now make up part of Europe, collided with Baltica and Aval ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zachełmie Quarry
Zachełmie may refer to the following places in Poland: * Zachełmie, Lower Silesian Voivodeship (south-west Poland) *Zachełmie, Świętokrzyskie Voivodeship Zachełmie is a village in the administrative district of Gmina Zagnańsk, within Kielce County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately east of Zagnańsk and north-east of the regional capital Kielce. Zach ... (south-central Poland) * Zachełmie, West Pomeranian Voivodeship (north-west Poland) {{geodis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Sovereign States
The following is a list providing an overview of sovereign states around the world with information on their status and recognition of their sovereignty. The 205 listed states can be divided into three categories based on membership within the United Nations System: 193 member states of the United Nations, UN member states, two United Nations General Assembly observers#Current non-member observers, UN General Assembly non-member observer states, and ten other states. The ''sovereignty dispute'' column indicates states having undisputed sovereignty (188 states, of which there are 187 UN member states and one UN General Assembly non-member observer state), states having disputed sovereignty (15 states, of which there are six UN member states, one UN General Assembly non-member observer state, and eight de facto states), and states having a political status of the Cook Islands and Niue, special political status (two states, both in associated state, free association with New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
