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Caves Of The Tullybrack And Belmore Hills
The Caves of the Tullybrack and Belmore hills are a collection of caves in southwest County Fermanagh, Northern Ireland. The region is also described as the West Fermanagh Scarplands by environmental agencies and shares many similar karst features with the nearby Marble Arch Caves Global Geopark. The caves are situated under the hills of Tullybrack () – which incorporates Glenkeel () and Knockmore () – and Belmore (), and feature three major cave systems: Reyfad–Glenkeel, Noon's Hole–Arch Cave and Boho Caves. They have been described as nationally significant by the Northern Ireland Environment Agency. The caves and related features are formed predominantly in the Dartry Limestone Formation – a sequence of rocks assigned to the Asbian sub-stage of the Visean stage of the Carboniferous period. Within this formation, the Knockmore Limestone Member is also an important cave-forming rock sequence. Cave development occurred within the Quaternary period and certain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cave
A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea caves, rock shelters, and grottos, that extend a relatively short distance into the rock and they are called ''exogene'' caves. Caves which extend further underground than the opening is wide are called ''endogene'' caves. Speleology is the science of exploration and study of all aspects of caves and the cave environment. Visiting or exploring caves for recreation may be called ''caving'', ''potholing'', or ''spelunking''. Formation types The formation and development of caves is known as ''speleogenesis''; it can occur over the course of millions of years. Caves can range widely in size, and are formed by various geological processes. These may involve a combination of chemical processes, erosion by water, tectonic forces, microorgani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quaternary
The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million years ago to the present. The Quaternary Period is divided into two epochs: the Pleistocene (2.58 million years ago to 11.7 thousand years ago) and the Holocene (11.7 thousand years ago to today, although a third epoch, the Anthropocene, has been proposed but is not yet officially recognised by the ICS). The Quaternary Period is typically defined by the cyclic growth and decay of continental ice sheets related to the Milankovitch cycles and the associated climate and environmental changes that they caused. Research history In 1759 Giovanni Arduino proposed that the geological strata of northern Italy could be divided into four successive formations or "orders" ( it, quattro ordini). The term "quaternary" was introduced by Jules Desn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chert
Chert () is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide (SiO2). Chert is characteristically of biological origin, but may also occur inorganically as a chemical precipitate or a diagenetic replacement, as in petrified wood. Chert is typically composed of the petrified remains of siliceous ooze, the biogenic sediment that covers large areas of the deep ocean floor, and which contains the silicon skeletal remains of diatoms, silicoflagellates, and radiolarians. Precambrian cherts are notable for the presence of fossil cyanobacteria. In addition to microfossils, chert occasionally contains macrofossils. However, some chert is devoid of any fossils. Chert varies greatly in color (from white to black), but most often manifests as gray, brown, grayish brown and light green to rusty redW.L. Roberts, T.J. Campbell, G.R. Rapp Jr., "Encyclopedia of Mineralogy, Second Edition", 1990. R.S. Mitc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollnagollum Coolarkan Waterfall
Pollnagollum–Poulelva (usually referred to as Pollnagollum or Poulnagollum) is an active stream passage cave situated in County Clare, Ireland. Description At over in length, Pollnagollum is the longest cave on the island of Ireland and the third deepest cave in the State. The system primarily consists of winding stream passages which interconnect in various ways, offering a great variety of through trips. The cave is usually entered via the Pollnagollum entrance, with the main streamway encountered a short distance inside. The main streamway continues for most of the length of the cave with several smaller inlets entering along its length. Near the southern end of the cave the Poulelva pot is encountered; the two entrances are often used for through-trips. Much of the water in the cave is fed from the sinks of Upper Pollnagollum, at the point where surface water runs off the shale bedrock and sinks into the permeable limestone. The terminus of the cave is a low bedding p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Museums Northern Ireland
National Museums Northern Ireland (NMNI) (formerly ''National Museums and Galleries of Northern Ireland'') is a museum service in Northern Ireland, consisting of the Ulster American Folk Park, the Ulster Folk and Transport Museum and the Ulster Museum. It is headquartered at Cultra and is sponsored by the Department of Culture, Arts and Leisure to promote history, art, science and the culture of the people of Northern Ireland. As of 2020, NMNI has 274 employees. The Titanic In late August 2018, several groups were vying for the right to purchase the 5,500 RMS Titanic relics that were an asset of the bankrupt Premier Exhibitions. Eventually, the National Maritime Museum, Titanic Belfast and Titanic Foundation Limited, as well as the National Museums Northern Ireland, joined together as a consortium that was raising money to purchase the 5,500 artifacts. The group intended to keep all of the items together as a single exhibit. Oceanographer Robert Ballard said he favored this bid s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Souterrain
''Souterrain'' (from French ''sous terrain'', meaning "under ground") is a name given by archaeologists to a type of underground structure associated mainly with the European Atlantic Iron Age. These structures appear to have been brought northwards from Gaul during the late Iron Age. Regional names include earth houses, fogous and Pictish houses. The term ''souterrain'' has been used as a distinct term from ''fogou'' meaning 'cave'. In Cornwall the regional name of ''fogou'' ( Cornish for 'cave') is applied to souterrain structures. The design of underground structures has been shown to differ among regions; for example, in western Cornwall the design and function of the fogou appears to correlate with a larder use. Etymology The name ''souterrain'' comes from the French language (''sous-terrain'' or ''souterrain''), in which it means "underground passageway" or refers to subterranea in general. In languages other than English, it is sometimes used to mean " basement", especi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SSSI
A Site of Special Scientific Interest (SSSI) in Great Britain or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland is a conservation designation denoting a protected area in the United Kingdom and Isle of Man. SSSI/ASSIs are the basic building block of site-based nature conservation legislation and most other legal nature/geological conservation designations in the United Kingdom are based upon them, including national nature reserves, Ramsar sites, Special Protection Areas, and Special Areas of Conservation. The acronym "SSSI" is often pronounced "triple-S I". Selection and conservation Sites notified for their biological interest are known as Biological SSSIs (or ASSIs), and those notified for geological or physiographic interest are Geological SSSIs (or ASSIs). Sites may be divided into management units, with some areas including units that are noted for both biological and geological interest. Biological Biological SSSI/ASSIs may b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conservation Designation
A conservation designation is a name and/or acronym which explains the status of an area of land in terms of conservation or protection. Examples United Kingdom *Area of Outstanding Natural Beauty (AONB) * Environmentally sensitive area * Local nature reserve (LNR) * Marine nature reserve (MNR) * National nature reserve (NNR) * National scenic area (NSA) *Nitrate vulnerable zone (NVZ) *Site of Special Scientific Interest (SSSI) For a comprehensive list, see Conservation in the United Kingdom European Union *Special Area of Conservation *Special Protection Area United States Wildlands Project Multi-national *Under the Berne Convention ** Areas of Special Conservation Interest (ASCI) * Ramsar site A Ramsar site is a wetland site designated to be of international importance under the Ramsar Convention,8 ha (O) *** Permanent 8 ha (P) *** Seasonal Intermittent < 8 ha(Ts) ** |
