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Wills Neck
Wills Neck is the highest summit on the Quantock Hills and one of the highest points in Somerset, England. Although only 1261 ft (384 m) high, it qualifies as one of England's Marilyns. It is situated about north west of the historic market town of Taunton. The name 'Wills Neck' is derived from the Saxon word for 'stranger' or 'foreigner'. It relates to a local tribe the Wealas which according to legend fought the Romans at the site. On a clear day it is possible to see Dartmoor, Exmoor, the Brecon Beacons, the Mendips and Blackdown Hills. It is sometimes even possible to see Pilsdon Pen, the second highest point in Dorset, the highest, Lewesdon Hill, is also visible. The hill is formed from Hangman Grits laid down during the Devonian a geologic period of the Paleozoic Era spanning from the end of the Silurian Period, about Mya (million years ago), to the beginning of the Carboniferous Period. Wills Neck was surveyed by schoolboys from Clifton College from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triangulation Station
A triangulation station, also known as a trigonometrical point, and sometimes informally as a trig, is a fixed surveying station, used in geodetic surveying and other surveying projects in its vicinity. The nomenclature varies regionally: they are generally known as trigonometrical stations or triangulation stations in North America, trig points in the United Kingdom, trig pillars in Ireland, trig stations or trig points in Australia and New Zealand, and trig beacons in South Africa. Use The station is usually set up by a government with known coordinates and elevation published. Many stations are located on hilltops for the purposes of visibility. A graven metal plate on the top of a pillar may provide a mounting point for a theodolite or reflector, often using some form of kinematic coupling to ensure reproducible positioning. Trigonometrical stations are grouped together to form a network of triangulation. Positions of all land boundaries, roads, railways, bridges and other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pilsdon Pen
Pilsdon Pen is a 277-metre (909 ft) hill in Dorset in South West England, situated at the north end of the Marshwood Vale, approximately west of Beaminster. It is Dorset's second highest point and has panoramic views extending for many miles. It was bequeathed to the National Trust by the Pinney family in 1982. For many years it was thought to be Dorset's highest hill, until modern survey revealed that nearby Lewesdon Hill was 2 metres higher. Geology The hill is a lower greensand Cretaceous outcrop situated amongst Jurassic strata of marl and clay, at the border between the chalk of South-East England and the granite of Devon and Cornwall. Archaeology The hill is topped by an Iron Age multivallate Durotrigian hill fort which was excavated in the 1960s by Peter Gelling of the University of Birmingham with his wife Margaret Gelling at the request of Michael Pinney. The remains of 14 roundhouses were uncovered near the centre of the hill fort. Surveys were also carried o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cairn
A cairn is a man-made pile (or stack) of stones raised for a purpose, usually as a marker or as a burial mound. The word ''cairn'' comes from the gd, càrn (plural ). Cairns have been and are used for a broad variety of purposes. In prehistoric times, they were raised as markers, as memorials and as burial monuments (some of which contained chambers). In modern times, cairns are often raised as landmarks, especially to mark the summits of mountains. Cairns are also used as trail markers. They vary in size from small stone markers to entire artificial hills, and in complexity from loose conical rock piles to elaborate megalithic structures. Cairns may be painted or otherwise decorated, whether for increased visibility or for religious reasons. A variant is the inuksuk (plural inuksuit), used by the Inuit and other peoples of the Arctic region of North America. History Europe The building of cairns for various purposes goes back into prehistory in Eurasia, ranging in s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clifton College
''The spirit nourishes within'' , established = 160 years ago , closed = , type = Public schoolIndependent boarding and day school , religion = Christian , president = , head_label = Head of College , head = Dr Tim Greene , r_head_label = , r_head = , chair_label = , chair = , founder = John Percival , address = College Road , city = Bristol , county = , country = England , postcode = BS8 3JH , local_authority = , dfeno = , urn = 109334 , ofsted = , capacity = 1,200 , enrolment = 1,171 , gender = Mixed , lower_age = 2 , upper_age = 18 , houses = 12 (in the Upper School) , colours = Blue, Green, Navy , publication = , free_label_1 = Former pupils , free_1 = Old Cliftonians , free_label_2 = , free_2 = , free_label_3 = , free_3 = , websit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carboniferous
The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carboniferous'' means "coal-bearing", from the Latin '' carbō'' ("coal") and '' ferō'' ("bear, carry"), and refers to the many coal beds formed globally during that time. The first of the modern 'system' names, it was coined by geologists William Conybeare and William Phillips in 1822, based on a study of the British rock succession. The Carboniferous is often treated in North America as two geological periods, the earlier Mississippian and the later Pennsylvanian. Terrestrial animal life was well established by the Carboniferous Period. Tetrapods (four limbed vertebrates), which had originated from lobe-finned fish during the preceding Devonian, became pentadactylous in and diversified during the Carboniferous, including early amphibian line ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annum
A year or annus is the orbital period of a planetary body, for example, the Earth, moving in its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by change in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons are generally recognized: spring, summer, autumn and winter. In tropical and subtropical regions, several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked. A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars. For the Gregorian calendar, the average length of the calendar year (the mea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silurian
The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago ( Mya), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleozoic Era. As with other geologic periods, the rock beds that define the period's start and end are well identified, but the exact dates are uncertain by a few million years. The base of the Silurian is set at a series of major Ordovician–Silurian extinction events when up to 60% of marine genera were wiped out. One important event in this period was the initial establishment of terrestrial life in what is known as the Silurian-Devonian Terrestrial Revolution: vascular plants emerged from more primitive land plants, dikaryan fungi started expanding and diversifying along with glomeromycotan fungi, and three groups of arthropods (myriapods, arachnids and hexapods) became fully terrestrialized. A significant evolutionary milestone during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleozoic
The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ''zōḗ'' (), "life", meaning "ancient life" ). It is the longest of the Phanerozoic eras, lasting from , and is subdivided into six geologic periods (from oldest to youngest): # Cambrian # Ordovician # Silurian # Devonian # Carboniferous # Permian The Paleozoic comes after the Neoproterozoic Era of the Proterozoic Eon and is followed by the Mesozoic Era. The Paleozoic was a time of dramatic geological, climatic, and evolutionary change. The Cambrian witnessed the most rapid and widespread diversification of life in Earth's history, known as the Cambrian explosion, in which most modern phyla first appeared. Arthropods, molluscs, fish, amphibians, reptiles, and synapsids all evolved during the Paleozoic. Life began in the ocean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geologic Period
The geologic time scale, or geological time scale, (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (scientific branch of geology that aims to determine the age of rocks). It is used primarily by Earth scientists (including geologists, paleontologists, geophysicists, geochemists, and paleoclimatologists) to describe the timing and relationships of events in geologic history. The time scale has been developed through the study of rock layers and the observation of their relationships and identifying features such as lithologies, paleomagnetic properties, and fossils. The definition of standardized international units of geologic time is the responsibility of the International Commission on Stratigraphy (ICS), a constituent body of the International Union of Geological Sciences (IUGS), whose primary objective is to precisely define gl ... [...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] |
Exmoor Group
The Exmoor Group is a late Devonian to early Carboniferous lithostratigraphic group (a sequence of rock strata) in southwest England whose outcrop extends from Croyde in north Devon east across Exmoor to Minehead in west Somerset. The group comprises the following formations (in stratigraphic order, i.e., the oldest at the base and the youngest at the top) the: *Pilton Mudstone Formation (Pilton Beds, Pilton Shales) *Baggy Sandstones Formation (Baggy Beds, Marwood Beds) *Upcott Slates Formation *Pickwell Down Sandstones Formation *Morte Slates Formation *Ilfracombe Slates Formation *Hangman Sandstone Formation (Hangman Grits) *Lynton Formation (Lynton Beds, Lynton Slates) Each of these divisions has been given different names by different authors in the past including those shown in brackets above. Some that had been classed as 'formations' (or even in one case as a 'group') are now ' members'. Lynton Formation Extending east from Woody Bay, the Lynton Formation underlies the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lewesdon Hill
Lewesdon Hill is a hill in west Dorset, England. With a maximum elevation of , it is the highest point in Dorset.Muir, Johnny, ''The UK's County Tops'', Milnthorpe: Cicerone, 2011, p. 26. Geography Location Lewesdon Hill stands about 4 km west of Beaminster, 1½ km south of Broadwindsor, 2 miles south of Mosterton, 1½ km west-northwest of Stoke Abbott and 3 km east of another hillfort-topped eminence, Pilsdon Pen. To the south of the hill is the Marshwood Vale and to the north is the valley of the River Axe. Summit Lewesdon is the county top of Dorset. Its summit is an elongated ridge surrounded by beech woods. The actual summit is a low grassy mound at the east end of the ridge.''Lewesdon Hill'' at www.hill-bagging.co.uk. Retrieved 18 Jun 2017. For many years, nearby |
