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Cheshire Basin
The Cheshire Basin is a late Palaeozoic and Mesozoic sedimentary basin extending under most of the county of Cheshire in northwest England. It extends northwards into the Manchester area and south into Shropshire. The basin possesses something of the character of a half-graben as its deepest extent is along its eastern and southeastern margins, where it is well defined by a series of sub-parallel faults, most important of which is the Red Rock Fault. These faults divide the basin from the older Carboniferous rocks of the Peak District and the North Staffordshire Coalfield. In terms of its architecture, the basin is sometimes considered to be divided into two sub-basins: the more southerly Wem–Audlem Sub-basin and the Sandbach–Knutsford Sub-basin to its northeast. The basin fill is mainly Permian and Triassic sandstones and mudstones, but it also incorporates economically important halite beds. The sequences referred to the Sherwood Sandstone Group and the overlying Mercia M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeozoic
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 but eve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sherwood Sandstone Group
The Sherwood Sandstone Group is a Triassic lithostratigraphic group (a sequence of rock strata) which is widespread in Britain, especially in the English Midlands. The name is derived from Sherwood Forest in Nottinghamshire which is underlain by rocks of this age. It has economic importance as the reservoir of the Morecambe Bay gas field, the second largest gas field in the UK. Geographical extent These rocks are found in northwest England as far north as Carlisle (and extending just into Scotland around Annan and Gretna) and in the Vale of Eden and then extending down the Cumbrian coast into Lancashire and Cheshire. They are mostly obscured by superficial deposits but the highest coastal cliffs in northwest England at St Bees Head are formed in the St Bees Sandstone, the lowermost formation within the group. In the northeast they extend from Hartlepool south through the Vale of Mowbray and the Vale of York, then south through Nottinghamshire into the English Midlands, though ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheshire Plain
The Cheshire Plain is a relatively flat expanse of lowland within the county of Cheshire in North West England but extending south into Shropshire. It extends from the Mersey Valley in the north to the Shropshire Hills in the south, bounded by the hills of North Wales to the west and the foothills of the Pennines to the north-east. The Wirral Peninsula lies to the north-west whilst the plain merges with the South Lancashire Plain in the embayment occupied by Manchester to the north. In detail, the plain comprises two areas with distinct characters, the one to the west of the Mid Cheshire Ridge and the other, larger part, to its east. The plain is the surface expression of the Cheshire Basin, a deep sedimentary basin that extends north into Lancashire and south into Shropshire. It assumed its current form as the ice-sheets of the last glacial period melted away between 20,000 and 15,000 years ago leaving behind a thick cover of glacial till and extensive tracts of glacio-flu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alderley Edge
Alderley Edge is a village and civil parish in Cheshire, England. In 2011, it had a population of 4,780. Alderley Edge is northwest of Macclesfield and south of Manchester, at the base of a steep and thickly wooded sandstone escarpment, Alderley Edge, which is the area's chief topographical feature and overlooks the Cheshire Plain. Alderley Edge is known for its affluence and expensive houses, falling inside Cheshire's Golden Triangle. Alderley Edge has a selection of cafes and designer shops and has attracted numerous Premier League footballers, actors and multi-millionaire businesspeople. It is one of the most expensive and sought-after places to live in the UK outside central London. History The area around Alderley Edge provides proof of occupation since the Mesolithic period with flint implements being found along the line of the sandstone outcrop. Evidence of copper mining in the Bronze Age has also been found to the south of the area. In 1995 members of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mid Cheshire Ridge
The Mid Cheshire Ridge is a range of low sandstone hills which stretch north to south through Cheshire in North West England. The ridge is discontinuous, with the hills forming two main blocks, north and south of the "Beeston Gap". The main mass of those to the south are known as the Peckforton Hills; the larger group of hills to the north do not have a collective name. Significant summits The ridge attains its highest elevation at Raw Head in the Peckforton Hills, some 227 m above sea level. Other significant summits and the parishes within which they lie, are from north to south: *Beacon Hill (150 m), (Frodsham) *Woodhouse Hill (145 m), (Frodsham) *Helsby Hill (140 m), (Helsby) *Alvanley Cliff (135 m), ( Alvanley) *Birch Hill (158 m), ( Manley) * Old Pale (176 m), ( Delamere) *Eddisbury Hill (158 m), ( Delamere) *Primrosehill (158 m), ( Delamere) *High Billinge (175 m), (Utkinton) *Luddington Hill (145 m), (Utk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Normal Fault
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] |
Period (geology)
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crust (geology)
In geology, the crust is the outermost solid shell of a rocky planet, dwarf planet, or natural satellite. It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case of icy satellites, it may be distinguished based on its phase (solid crust vs. liquid mantle). The crusts of Earth, Mercury, Venus, Mars, Io, the Moon and other planetary bodies formed via igneous processes and were later modified by erosion, impact cratering, volcanism, and sedimentation. Most terrestrial planets have fairly uniform crusts. Earth, however, has two distinct types: continental crust and oceanic crust. These two types have different chemical compositions and physical properties and were formed by different geological processes. Types of crust Planetary geologists divide crust into three categories based on how and when it formed. Primary crust / primordial crust This is a planet's "original" crust. It forms from solidification of a magma ocean. Towa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Irish Sea Basin
The Irish Sea or , gv, Y Keayn Yernagh, sco, Erse Sie, gd, Muir Èireann , Ulster-Scots: ''Airish Sea'', cy, Môr Iwerddon . is an extensive body of water that separates the islands of Ireland and Great Britain. It is linked to the Celtic Sea in the south by St George's Channel and to the Inner Seas off the West Coast of Scotland in the north by the North Channel. Anglesey, North Wales, is the largest island in the Irish Sea, followed by the Isle of Man. The term ''Manx Sea'' may occasionally be encountered ( cy, Môr Manaw, ga, Muir Meann gv, Mooir Vannin, gd, Muir Mhanainn). On its shoreline are Scotland to the north, England to the east, Wales to the southeast, Northern Ireland and the Republic of Ireland to the west. The Irish Sea is of significant economic importance to regional trade, shipping and transport, as well as fishing and power generation in the form of wind power and nuclear power plants. Annual traffic between Great Britain and Ireland amounts t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stafford Basin
A feature of the geology of England, the Stafford Basin extends beneath much of the Midlands county of Staffordshire. It is a depositional basin which was initiated during the Permian period and continued to receive sediment during the Triassic period and probably thereafter. Part of a more extensive set of linked basins, it connects with the Cheshire Basin to the northwest, the Worcester Basin via the Bratch Graben to the south and the Needwood Basin to the east. It is flanked in part to the west by the Coalbrookdale Coalfield and to the east by the South Staffordshire Coalfield. The sedimentary sequence, principally sandstones and mudstones, within the basin is continuous with that of the adjoining basins in the rift complex. Deposition of the Chester Formation (formerly Chester Pebble Beds) for example is ascribed to a river flowing north from the Worcester Basin through the Stafford Basin and on into the Cheshire and East Irish Sea basins during the early Triassic. In contrast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Worcester Basin
The Worcester Basin or Worcester Graben is a sedimentary basin in central England, filled with mainly Permian and Triassic rocks. It trends roughly north-south and lies between the East Malverns Fault in the west and the Inkberrow Fault in the east. It forms part of a series of Permo-Triassic basins that stretch north-south across England, including the Cheshire Basin, Stafford Basin and the East Irish Sea Basin. These basins resulted from a regional rifting event that affected parts of North-West Europe, eastern North America and East Greenland. Fill The oldest part of the sedimentary fill in the Worcester Basin is the Cisuralian (Early Permian) Bridgnorth Sandstone Formation, deposited in an aeolian environment. Unconformably above this is the Early Triassic Kidderminster Formation of pebble conglomerates and sandstones, deposited in a fluvial environment. The succession continues with the Early Triassic Wildmoor Sandstone Formation, followed by the Anisian (Middle Triassic) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prees
Prees () is a village and civil parish in north Shropshire, near the border between England and Wales. Its name is Celtic and means "brushwood". Prees civil parish The civil parish includes many other villages and hamlets as well as the namesake Prees Village. Examples include the villages Prees Higher Heath and Prees Green and the hamlets of Prees Lower Heath and Prees Wood (which all share the name Prees). Sandford, Darliston, Fauls and Mickley to the east of the village are also included in the parish. Prees Heath, a nearby village, despite its name, is not part of the civil parish and is actually contained within the neighbouring Whitchurch civil parish. The population of the civil parish in 2001 was recorded at 2688, increasing to 2,895 Census. Prees village Prees is northeast of the small town of Wem. It is also west of Market Drayton and south of Whitchurch. The population in 2001 was recorded at 814, increasing to 939 Census. History The church in the village date ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
