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Cruachán Paorach
Croughaun Hill ( or ''Cruachán'') is a hill in north County Waterford, Ireland. It is a largely solitary hill to the east of the Comeragh Mountains. Geography The hill has a conical shape, and is geologically composed of conglomerates, sandstone and siltstone which are dated to the Devonian period. Villages in the surrounding hinterland include Fews, Clonea-Power and Rathgormack Rathgormack or Rathgormac () is a village and parish in northern County Waterford, Ireland. Amenities The village has a pub, a shop, a newly made all-weather pitch, a recreational park, a national school and a Roman Catholic Church Rathgormac .... References Mountains and hills of County Waterford {{Waterford-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comeragh Mountains
The Comeragh Mountains () are a glaciated mountain range situated in southeast Ireland in County Waterford. They are located between the town of Dungarvan and stretch inland to the town of Clonmel on the County Tipperary border and the villages of Kilrossanty and Kilmacthomas in County Waterford County Waterford ( ga, Contae Phort Láirge) is a Counties of Ireland, county in Republic of Ireland, Ireland. It is in the Provinces of Ireland, province of Munster and is part of the South-East Region, Ireland, South-East Region. It is named .... The twelve mountains which form the Comeragh Mountains are popular for mountain climbers and hikers and the Comeragh Mountains Walking Festival is held every October and is centred on the Nire Valley. The highest peak is Fauscoum at . References External links Comeragh Mountaineering Club Listing at mountainviews.ieDungarvan Tourism Official - Comeragh Mountain Walks {{Authority control Mountains and hills of County Waterfo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
County Waterford
County Waterford ( ga, Contae Phort Láirge) is a Counties of Ireland, county in Republic of Ireland, Ireland. It is in the Provinces of Ireland, province of Munster and is part of the South-East Region, Ireland, South-East Region. It is named after the city of Waterford. Waterford City and County Council is the Local government in the Republic of Ireland, local authority for the county. The population of the county at large, including the city, was 116,176 according to the 2016 census. The county is based on the historic Gaelic Ireland, Gaelic territory of the ''Déisi, Déise''. There is an Gaeltacht, Irish-speaking area, Gaeltacht na nDéise, in the south-west of the county. Geography and subdivisions County Waterford has two mountain ranges, the Knockmealdown Mountains and the Comeragh Mountains. The highest point in the county is Knockmealdown, at . It also has many rivers, including Ireland's third-longest river, the River Suir (); and Ireland's fourth-longest river, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conglomerate (geology)
Conglomerate () is a clastic sedimentary rock that is composed of a substantial fraction of rounded to subangular gravel-size clasts. A conglomerate typically contains a matrix of finer-grained sediments, such as sand, silt, or clay, which fills the interstices between the clasts. The clasts and matrix are typically cemented by calcium carbonate, iron oxide, silica, or hardened clay. Conglomerates form by the consolidation and lithification of gravel. They can be found in sedimentary rock sequences of all ages but probably make up less than 1 percent by weight of all sedimentary rocks. In terms of origin and depositional mechanisms, they are closely related to sandstones and exhibit many of the same types of sedimentary structures, e.g., tabular and trough cross-bedding and graded bedding.Boggs, S. (2006) ''Principles of Sedimentology and Stratigraphy.'', 2nd ed. Prentice Hall, New York. 662 pp. Friedman, G.M. (2003) ''Classification of sediments and sedimentary rocks.'' In G ... [...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] |
Siltstone
Siltstone, also known as aleurolite, is a clastic sedimentary rock that is composed mostly of silt. It is a form of mudrock with a low clay mineral content, which can be distinguished from shale by its lack of fissility.Blatt ''et al.'' 1980, pp.381-382 Although its permeability and porosity is relatively low, siltstone is sometimes a tight gas reservoir rock, an unconventional reservoir for natural gas that requires hydraulic fracturing for economic gas production. Siltstone was prized in ancient Egypt for manufacturing statuary and cosmetic palettes. The siltstone quarried at Wadi Hammamat was a hard, fine-grained siltstone that resisted flaking and was almost ideal for such uses. Description There is not complete agreement on the definition of siltstone. One definition is that siltstone is mudrock ( clastic sedimentary rock containing at least 50% clay and silt) in which at least 2/3 of the clay and silt fraction is composed of silt-sized particles. Silt is defined a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devonian
The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, where rocks from this period were first studied. The first significant adaptive radiation of life on dry land occurred during the Devonian. Free-sporing vascular plants began to spread across dry land, forming extensive forests which covered the continents. By the middle of the Devonian, several groups of plants had evolved leaves and true roots, and by the end of the period the first seed-bearing plants appeared. The arthropod groups of myriapods, arachnids and hexapods also became well-established early in this period, after starting their expansion to land at least from the Ordovician period. Fish reached substantial diversity during this time, leading the Devonian to often be dubbed the Age of Fishes. The placoderms began dominating ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rathgormack
Rathgormack or Rathgormac () is a village and parish in northern County Waterford, Ireland. Amenities The village has a pub, a shop, a newly made all-weather pitch, a recreational park, a national school and a Roman Catholic Church Rathgormack made national headlines in 2021 when, to avoid the loss of the village's last pub,19 locals invested €12,000 each and formed a company to purchase it. Geography The closest centres of population to Rathgormack are the County Tipperary towns of Carrick-on-Suir and Clonmel. It is the twin parish of Clonea-Power. The population of the area is around 1200. Farming and agriculture-related industries are the main sources of employment. Tourism is also important, with a hiking centre located in the village. It caters mainly for hikers to the nearby Comeragh Mountains. The town is overlooked by Cruachán Paorach. History In 1921, during the Irish War of Independence, a District Inspector of the Royal Irish Constabulary, Gilbert Potter was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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