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Clun Forest
Clun Forest is a remote, rural area of open pastures, moorland and mixed deciduous/coniferous woodland in the southwest part of the English county of Shropshire and also just over the border into Powys, Wales. It was once a Royal hunting forest covering an area that stretched from Ludlow up the Clun Valley. Set aside for hunting in mediaeval times, these areas were not necessarily heavily wooded, though in today's landscape there are numerous small woods, such as Radnor Wood, together with larger areas of conifer plantations established by the Forestry Commission along the Wales–England border north of Anchor for example (the planted Ceri Forest), and to the north and southeast of Clun. The ancient Offa's Dyke runs north–south through the area (and can be walked by the Offa's Dyke Path). It gives its name to a deanery of the Church of England's Diocese of Hereford. Geology The Forest is underlain by a succession of mudstones, sandstones and siltstones of Silurian age. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deciduous
In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, after flowering; and to the shedding of ripe fruit. The antonym of ''deciduous'' in the botanical sense is evergreen. Generally, the term "deciduous" means "the dropping of a part that is no longer needed or useful" and the "falling away after its purpose is finished". In plants, it is the result of natural processes. "Deciduous" has a similar meaning when referring to animal parts, such as deciduous antlers in deer, deciduous teeth (baby teeth) in some mammals (including humans); or decidua, the uterine lining that sheds off after birth. Botany In botany and horticulture, deciduous plants, including trees, shrubs and herbaceous perennials, are those that lose all of their leaves for part of the year. This process is called abscissio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diocese Of Hereford
The Diocese of Hereford is a Church of England diocese based in Hereford, covering Herefordshire, southern Shropshire and a few parishes within Worcestershire in England, and a few parishes within Powys and Monmouthshire in Wales. The cathedral is Hereford Cathedral and the bishop is the Bishop of Hereford. The diocese is one of the oldest in England (created in 676 and based on the minor sub-kingdom of the Magonsæte) and is part of the Province of Canterbury. Bishops The diocesan Bishop of Hereford ( Richard Jackson) was, until 2020, assisted by the Bishop suffragan of Ludlow (which see was created in 1981) — it has been announced that the suffragan See is not to be filled. The provincial episcopal visitor (for parishes in this diocese – among twelve others in the western part of the Province of Canterbury – who reject the ministry of priests who are women, since 1994) is the Bishop suffragan of Ebbsfleet, who is licensed as an honorary assistant bishop of the diocese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Till
image:Geschiebemergel.JPG, Closeup of glacial till. Note that the larger grains (pebbles and gravel) in the till are completely surrounded by the matrix of finer material (silt and sand), and this characteristic, known as ''matrix support'', is diagnostic of till. image:Glacial till exposed in roadcut-750px.jpg, Glacial till with tufts of grass Till or glacial till is unsorted glacier, glacial sediment. Till is derived from the erosion and entrainment of material by the moving ice of a glacier. It is deposited some distance down-ice to form terminal, lateral, medial and ground moraines. Till is classified into primary deposits, laid down directly by glaciers, and secondary deposits, reworked by fluvial transport and other processes. Description Till is a form of '' glacial drift'', which is rock material transported by a glacier and deposited directly from the ice or from running water emerging from the ice. It is distinguished from other forms of drift in that it is depos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault (geology)
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bioturbation
Bioturbation is defined as the reworking of soils and sediments by animals or plants. It includes burrowing, ingestion, and defecation of sediment grains. Bioturbating activities have a profound effect on the environment and are thought to be a primary driver of biodiversity. The formal study of bioturbation began in the 1800s by Charles Darwin experimenting in his garden. The disruption of aquatic sediments and terrestrial soils through bioturbating activities provides significant ecosystem services. These include the alteration of nutrients in aquatic sediment and overlying water, shelter to other species in the form of burrows in terrestrial and water ecosystems, and soil production on land.Shaler, N. S., 1891, The origin and nature of soils, in Powell, J. W., ed., USGS 12th Annual report 1890-1891: Washington, D.C., Government Printing Office, p. 213-45. Bioturbators are deemed ecosystem engineers because they alter resource availability to other species through the physical ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clun Forest Disturbance
Clun ( cy, Colunwy) is a town in south west Shropshire, England, and the Shropshire Hills Area of Outstanding Natural Beauty. The 2011 census recorded 680 people living in the town.Combined populations for the two output areas covering the towan/ref> Research by the Campaign for the Protection of Rural England suggests that Clun is one of the most tranquil locations in England. History Clun takes its name from the river upon whose banks it stands. Deriving from the Welsh , it shares its very early Brythonic root with the two rivers Colne, in Lancashire and Essex, each of which has a town of the same name on its banks. Clun grew up around the site of an Anglo-Saxon church towards the end of the 7th century AD. However, in the surrounding area there was a scattered population at least as early as the Neolithic period, about 5000 years ago. Clun was on the historic drove road where flocks and herds were driven from Wales to the markets in the Midlands and London. At the time of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anticline
In structural geology, an anticline is a type of fold that is an arch-like shape and has its oldest beds at its core, whereas a syncline is the inverse of an anticline. A typical anticline is convex up in which the hinge or crest is the location where the curvature is greatest, and the limbs are the sides of the fold that dip away from the hinge. Anticlines can be recognized and differentiated from antiforms by a sequence of rock layers that become progressively older toward the center of the fold. Therefore, if age relationships between various rock strata are unknown, the term antiform should be used. The progressing age of the rock strata towards the core and uplifted center, are the trademark indications for evidence of anticlines on a geologic map. These formations occur because anticlinal ridges typically develop above thrust faults during crustal deformations. The uplifted core of the fold causes compression of strata that preferentially erodes to a deeper st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Newcastle, Shropshire
Newcastle is a village in the rural south west of Shropshire, England. It lies at the confluence of the River Clun, Shropshire, River Clun and the Folly Brook, 3 miles west of the small town of Clun. The B4368 runs through the village, on its way between Craven Arms in Shropshire to Newtown, Powys, Newtown in Powys. The village has a community hall, a campsite (Clun Valley Camping), a church and a pub (the "Crown Inn"). The Parish Newcastle on Clun is a civil parishes in England, civil parish which covers the village and surrounding countryside, reaching the border with Wales to the north. It is part of the remote and very rural Clun Forest, part of the Shropshire Hills AONB. Offa's Dyke and Offa's Dyke Path run through the area. The parish forms part of the Clun Ward (country subdivision), electoral division of Shropshire Council. Church The Church of England parish church, dedicated to St John the Evangelist, was built by Shrewsbury architect Edward Haycock, Sr. in 1848. As ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Clun, Shropshire
The River Clun runs mostly through Shropshire, England and joins the River Teme at Leintwardine, Herefordshire. The Clun Valley is part of the Shropshire Hills AONB (Area of Outstanding Natural Beauty). Course The River Clun has its source near the hamlet of Anchor (in a marshy area near the public house), close to the border of Wales. It flows east through the small town of Clun until Aston on Clun where it flows roughly southwards — the river flows around the north of Clunbury Hill. The river enters the lower valley — which widens and has a flatter floor (an extensive flood plain). The Folly Brook joins the Clun at Newcastle, and the River Unk flows into the Clun near Clun Castle, whilst the River Kemp flows into the river at Oaker near Aston. Near the end of the river's course, the River Redlake joins at Jay. Just south of Broadward (a Site of Special Scientific Interest for a stretch south of Broadward Bridge) the river flows into Herefordshire where it joins the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Structural Basin
A structural basin is a large-scale structural formation of rock strata formed by tectonic warping of previously flat-lying strata. They are geological depressions, the inverse of domes. Elongated structural basins are also known as synclines. Some are sedimentary basins, aggregations of sediment that filled up a depression or accumulated in an area. Others were formed by tectonic events long after the sedimentary layers were deposited. Basins may appear on a geologic map as roughly circular or elliptical, with concentric layers. Because the strata dip toward the center, the exposed strata in a basin are progressively younger from the outside in, with the youngest rocks in the center. Basins are often large in areal extent, often hundreds of kilometers across. Structural basins are often important sources of coal, petroleum, and groundwater. Examples Europe * Hampshire Basin, United Kingdom * London Basin, United Kingdom * Paris Basin, France * Permian Basin, Poland, northern ... [...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] |
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