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Stiperstones
The Stiperstones () is a distinctive hill in Shropshire, England. The quartzite rock of the ridge formed some 480 million years ago. During the last Ice Age Stiperstones lay on the eastern margin of the Welsh ice sheet. The hill itself was not glaciated though glaciers occupied surrounding valleys and it was subject to intense freezing and thawing which shattered the quartzite into a mass of jumbled scree surrounding several residual rocky tors. At above sea level it is the second-highest hill in the county, surpassed only by Brown Clee Hill (). Stiperstones' summit ridge is crowned by several jagged outcrops of rock, which may be seen silhouetted against the sky. Geography The Stiperstones is noted for its tors of quartzite. The principal ones are named as follows, from north-east to south-west: * Shepherd's Rock () * Devil's Chair () * Manstone Rock () * Cranberry Rock () * Nipstone Rock () * The Rock () Manstone Rock is the highest of these at , and is topped with a t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shropshire
Shropshire (; abbreviated SalopAlso used officially as the name of the county from 1974–1980. The demonym for inhabitants of the county "Salopian" derives from this name.) is a Ceremonial counties of England, ceremonial county in the West Midlands (region), West Midlands of England, on the England–Wales border, border with Wales. It is bordered by Cheshire to the north-east, Staffordshire to the east, Worcestershire to the south-east, Herefordshire to the south, and the Welsh principal areas of Powys and Wrexham County Borough, Wrexham to the west and north-west respectively. The largest settlement is Telford, while Shrewsbury is the county town. The county has an area of and a population of 498,073. Telford in the east and Shrewsbury in the centre are the largest towns. Shropshire is otherwise rural, and contains market towns such as Oswestry in the north-west, Market Drayton in the north-east, Bridgnorth in the south-east, and Ludlow in the south. For Local government i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Mynd
The Long Mynd is a heath and moorland plateau that forms part of the Shropshire Hills in Shropshire, England. The high ground, which is common land and designated as an Area of Outstanding Natural Beauty, lies between the Stiperstones range to the west and the Stretton Hills and Wenlock Edge to the east. Much of it is owned by the National Trust, and is managed by the Longmynd Commoners. The Long Mynd is approximately long by wide, and is broadly characterised by steep valleys on its eastern flanks, and a long slope to the western side rising in a steep escarpment. In its vicinity are the principal settlements of Church Stretton, Little Stretton and All Stretton, Pulverbatch, Smethcott, Woolstaston, Asterton, Myndtown, Wentnor and Ratlinghope. The highest point on the Long Mynd is Pole Bank (); this and the adjacent hill of Caer Caradoc () are classed as Marilyns. Etymology The name ''Long Mynd'' means "long mountain", the second element being Brittonic in ori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shropshire Hills
The Shropshire Hills are a dissected Highland, upland area and one of the natural regions of England. They lie wholly within the county of Shropshire and encompass several distinctive and well-known landmarks, such as the Long Mynd, Wenlock Edge, The Wrekin and the Clees. The Shropshire Hills lie south of the county town of Shrewsbury between the Welsh border and Much Wenlock, extending as far south as Ludlow. To the north they are bounded by the Shropshire, Cheshire and Staffordshire Plain, to the east by the Severn Valley and Mid Severn Sandstone Plateau, to the southeast by Knighton, Powys, Knighton and the Teme Valley and to the southwest by the Clun and North West Herefordshire Hills. Environment The Shropshire Hills are listed as Natural areas of England, Natural Area No. 42 and also as National Character Area 65 by Natural England, the UK Government's advisor on the natural environment. The NCA covers an area of and measure around from west to east and north to south. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marilyn (hill)
This is a list of Marilyn hills and mountains in the United Kingdom, Republic of Ireland, Ireland and surrounding islands and Stack (geology), sea stacks. Lists of mountains and hills in the British Isles#Marilyns, Marilyns are defined as peaks with a topographic prominence, prominence of or more, regardless of height or any other merit (e.g. topographic isolation, as used in Lists of mountains and hills in the British Isles#Munros, Munros). Thus, Marilyns can be mountains, with a height above , or relatively small hills. there were 2,010 recorded Marilyns. Definition The Marilyn classification was created by Alan Dawson in his 1992 book ''The Relative Hills of Britain''. The name Marilyn was coined by Dawson as a punning contrast to the ''Munro'' classification of Scottish mountains above , but which has no explicit prominence threshold, being homophone, homophonous with (Marilyn) ''Marilyn Monroe, Monroe''. The list of Marilyns was extended to Ireland by Clem Clements. Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartzite
Quartzite is a hard, non- foliated metamorphic rock that was originally pure quartz sandstone.Essentials of Geology, 3rd Edition, Stephen Marshak, p 182 Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts, and hence quartzite is a metasandstone. Pure quartzite is usually white to grey, though quartzites often occur in various shades of pink and red due to varying amounts of hematite. Other colors, such as yellow, green, blue and orange, are due to other minerals. The term ''quartzite'' is also sometimes used for very hard but unmetamorphosed sandstones that are composed of quartz grains thoroughly cemented with additional quartz. Such sedimentary rock has come to be described as orthoquartzite to distinguish it from metamorphic quartzite, which is sometimes called metaquartzite to emphasize its metamorphic origins. Quartzite is very resistant to chemical weathering and often forms ridges and resist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plynlimon
Plynlimon, or Pumlumon in Welsh language, Welsh (also historically anglicised as Plinlimon, Plynlymmon or Plinlimmon), is the highest point of the Cambrian Mountains in Wales (taking a restricted definition of the Cambrian Mountains, excluding Snowdonia, the Berwyns and the Brecon Beacons), and the highest point in Mid Wales. It is a massif that dominates the surrounding countryside and is the highest point (List of counties of England and Wales in 1964 by highest point, county top) of Ceredigion (both the modern council area, and the historic county, also known as Cardiganshire). The highest point of the massif itself is Pen Pumlumon Fawr, which is above ordnance datum. Its other important peaks are Pen Pumlumon Arwystli, Y Garn (Plynlimon), Y Garn, Pen Pumlumon Llygad-bychan and Pumlumon Fach. Bryn yr Ŵyn, or 'hill of the lambs', is a former Dewey in the foothills. The longest river in Britain, the River Severn, has Hafren Forest, its source on the mountain, as do t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontesbury
Pontesbury ( ) is a village and civil parish in Shropshire, and is approximately eight miles southwest of Shrewsbury. In the 2011 census, the village had a population of 1,873 and the parish had a population of 3,227. The village of Minsterley is just over a mile further southwest. The A488 road runs through the village, on its way from Shrewsbury to Bishop's Castle. The Rea Brook flows close by to the north with the village itself nestling on the northern edge of the Shropshire Hills AONB. Shropshire Council in their 2015 Place Plan detail the development strategy and refer to Pontesbury and neighbouring Minsterley as towns. Local government The village is the seat of an extensive civil parish, with its own parish council grouped into five wards, representing the village and outlying areas such as the villages and hamlets of Pontesford, Plealey, Asterley, Cruckton, Cruckmeole, Arscott, Lea Cross, Malehurst etc., as well as Habberley (which was previously a civil pari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mudstone
Mudstone, a type of mudrock, is a fine-grained sedimentary rock whose original constituents were clays or muds. Mudstone is distinguished from ''shale'' by its lack of fissility.Blatt, H., and R.J. Tracy, 1996, ''Petrology.'' New York, New York, W. H. Freeman, 2nd ed, 529 pp. The term ''mudstone'' is also used to describe carbonate rocks (limestone or dolomite) that are composed predominantly of carbonate mud. However, in most contexts, the term refers to siliciclastic mudstone, composed mostly of silicate minerals. The NASA Curiosity rover has found deposits of mudstone on Mars that contain organic substances such as propane, benzene and toluene. Definition There is not a single definition of mudstone that has gained general acceptance,Boggs 2006, p.143 though there is wide agreement that mudstones are fine-grained sedimentary rocks, composed mostly of silicate grains with a grain size less than . Individual grains this size are too small to be distinguished without a micros ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcaniclastic
Volcaniclastics are geologic materials composed of broken fragments (clasts) of volcanic rock. These encompass all clastic volcanic materials, regardless of what process fragmented the rock, how it was subsequently transported, what environment it was deposited in, or whether nonvolcanic material is mingled with the volcanic clasts. The United States Geological Survey defines volcaniclastics somewhat more narrowly, to include only rock composed of volcanic rock fragments that have been transported some distance from their place of origin. In the broad sense of the term, volcaniclastics includes pyroclastic rocks such as the Bandelier Tuff; cinder cones and other tephra deposits; the basal and capping breccia that characterize ʻaʻā lava flows; and lahars and debris flows of volcanic origin.Vincent 2000, pp.27-28 Volcaniclastics make up more of the volume of many volcanoes than do lava flows. Volcaniclastics may have contributed as much as a third of all sedimentation in the geolo ... [...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), as well as the current and most recent of the twelve periods of the Phanerozoic eon. 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); a proposed third epoch, the Anthropocene, was rejected in 2024 by IUGS, the governing body of the ICS. The Quaternary is typically defined by the Quaternary glaciation, 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 succ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head (geology)
Head describes deposits consisting of fragmented material which, following weathering, have moved downslope through a process of solifluction. The term has been used by British geologists since the middle of the 19th century to describe such material in a range of different settings from flat hilltops to the bottoms of valleys. Areas identified as head include deposits of aeolian origin such as blown sand and loess, slope deposits such as gelifluctates and solifluctates, and recently eroded soil material, called colluvium. With geologists becoming more interested in studying the near-surface environment and its related processes, the term head is becoming obsolete. A related term is 'combe (or coombe) rock', descriptive of a body of chalk and flint Flint, occasionally flintstone, is a sedimentary cryptocrystalline form of the mineral quartz, categorized as the variety of chert that occurs in chalk or marly limestone. Historically, flint was widely used to make stone t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
