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Aire Gap
Aire Gap is a pass through the Pennines in England formed by geologic fault (geology), faults and carved out by glaciers. The term is used to describe a geological division, a travel route, or a location that is an entry into the Aire river valley. Geology Geologically the Aire Gap lies between the Craven Fault and the limestone uplands of the Yorkshire Dales to the north and the Forest of Bowland and the millstone grit moors of the South Pennines. The South Pennines is the system between the Aire Gap and the Peak District.Encyclopædia Britannica The gap was formed by the dropping of the Craven Faults in the Carboniferous through Jurassic periods combined with glacial scouring by ice sheets in the Pleistocene Ice Age. The Aire Gap splits the Pennines into north and south by allying with the River Ribble. The Pennine chain is divided into two sections by the Aire Gap formed by the River Aire flowing south, a member of the Humber basin, and the Ribble flowing west and entering th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sheep Pasture Near Cat Gill Wood - Geograph
Sheep (: sheep) or domestic sheep (''Ovis aries'') are a domesticated, ruminant mammal typically kept as livestock. Although the term ''sheep'' can apply to other species in the genus ''Ovis'', in everyday usage it almost always refers to domesticated sheep. Like all ruminants, sheep are members of the order (biology), order Artiodactyla, the even-toed ungulates. Numbering a little over one billion, domestic sheep are also the most numerous species of sheep. An adult female is referred to as a ''ewe'' ( ), an intact male as a ''ram'', occasionally a ''tup'', a castrated male as a ''wether'', and a young sheep as a ''lamb''. Sheep are most likely descended from the wild mouflon of Europe and Asia, with Iran being a geographic envelope of the domestication center. One of the earliest animals to be domesticated for agricultural purposes, sheep are raised for fleeces, meat (Lamb and mutton, lamb, hogget or mutton), and sheep milk, milk. A sheep's wool is the most widely used anima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leeds And Liverpool Canal
The Leeds and Liverpool Canal is a canal in Northern England, linking the cities of Leeds and Liverpool. Over a distance of , crossing the Pennines, and including 91 locks on the main line. The Leeds and Liverpool Canal has several small branches, and in the early 21st century a new link was constructed into the Port of Liverpool, Liverpool docks system. History Background In the mid-18th century the growing towns of Yorkshire, including Leeds, Wakefield and Bradford, were trading increasingly. While the Aire and Calder Navigation improved links to the east for Leeds, links to the west were limited. Bradford merchants wanted to increase the supply of limestone to make lime for mortar and agriculture using coal from Bradford's collieries and to transport textiles to the Port of Liverpool. On the west coast, traders in the busy port of Liverpool wanted a cheap supply of coal for their shipping and manufacturing businesses and to tap the output from the industrial regions of Lanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Dunham Whitaker
Thomas Dunham Whitaker (8 June 1759 – 18 December 1821) was an English clergyman and topographer who was Vicar of Whalley, Lancashire, Whalley, from 1809 and Blackburn (ancient parish), Blackburn, from 1818. He undertook landscape improvements in the Cliviger area, and oversaw the planting of approximately half a million trees between 1785 and 1815, winning the gold medal of the Society of Arts for planting 64,000 larches in one year. Early life Born at Raynham, Norfolk, Raynham, Norfolk, on 8 June 1759, he was the son of William Whitaker (1730–1782), curate of Raynham, Norfolk, Raynham, Norfolk, and his wife Lucy, daughter of Robert Dunham, and widow of Ambrose Allen. In 1760, his father moved to his ancestral house at Holme Hall, Cliviger, Holme, in the township of Cliviger, Lancashire, and the boy was, in November 1766, placed under the care of the Rev. John Shaw of Rochdale. In November 1774, after spending a short time with the Rev. William Sheepshanks of Grassington i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pendle Water
Pendle Water is a minor river in Lancashire, England. Rising on Pendle Hill, Pendle Water cuts a deep valley between Barley Moor and Spence Hill, where it feeds into the reservoirs of Upper and Lower Ogden. Upon exiting the lower reservoir, Pendle Water flows east through the villages of Barley and Roughlee before collecting Blacko Water, which drains the Admergill Valley at Water Meetings near Wheathead, one mile west of the village of Blacko. The river then flows south through Higherford and Barrowford, where it is joined by Colne Water. It collects Walverden Water as it passes the site of Nelson and Colne College. From this point onwards, the river flows west past the Lomeshaye Industrial Estate alongside the Leeds and Liverpool Canal towards its confluence with the River Calder in Reedley Hallows, northwest of Burnley. Pendle Water once supplied water to the Burnley Water Treatment Works, which is situated on Wood End Lane. Flooding incidents On Tuesday 8 Aug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypsography
Hypsometry () is the measurement of the elevation and depth of features of Earth's surface relative to mean sea level. On Earth, the elevations can take on either positive or negative (below sea level) values. The distribution is theorised to be bimodal due to the difference in density between the lighter continental crust and denser oceanic crust. On other planets within this solar system, elevations are typically unimodal, owing to the lack of plate tectonics on those bodies. Hypsometric curve A hypsometric curve is a histogram or cumulative distribution function of elevations in a geographical area. Differences in hypsometric curves between landscapes arise because the geomorphic processes that shape the landscape may be different. When drawn as a 2-dimensional histogram, a hypsometric curve displays the elevation (''y'') on the vertical, y-axis and area above the corresponding elevation (''x'') on the horizontal or x-axis. The curve can also be shown in non-dimensi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya. The Jurassic constitutes the second and middle period of the Mesozoic, Mesozoic Era as well as the eighth period of the Phanerozoic, Phanerozoic Eon and is named after the Jura Mountains, where limestone strata from the period were first identified. The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic magmatic province, Central Atlantic Magmatic Province (CAMP). The beginning of the Toarcian Age started around 183 million years ago and is marked by the Toarcian Oceanic Anoxic Event, a global episode of Anoxic event, oceanic anoxia, ocean acidification, and elevated global temperatures associated with extinctions, likely caused by the eruption of the Kar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peak District
The Peak District is an Highland, upland area in central-northern England, at the southern end of the Pennines. Mostly in Derbyshire, it extends into Cheshire, Greater Manchester, Staffordshire, West Yorkshire and South Yorkshire. It is subdivided into the Dark Peak, moorland dominated by gritstone, and the White Peak, a limestone area with valleys and gorges. The Dark Peak forms an arc on the north, east and west of the district, and the White Peak covers central and southern areas. The highest point is Kinder Scout (). Most of the area is within the Peak District National Park, a protected landscape designated in 1951. A 2021 report states that "the Park's own population numbers around 40,000 and supports an estimated 18,000 jobs, predominantly through farming, manufacturing and, inevitably, tourism". The area has been inhabited since the Mesolithic era; it was largely used for agricultural purposes until mining arose in the Middle Ages. During the Industrial Revolution, seve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millstone Grit
Millstone Grit is any of a number of coarse-grained sandstones of Carboniferous age which occur in the British Isles. The name derives from its use in earlier times as a source of millstones for use principally in watermills. Geologists refer to the whole suite of rocks that encompass the individual limestone beds and the intervening mudstones as the Millstone Grit Group. The term Millstone Grit Series was formerly used to refer to the rocks now included within the Millstone Grit Group together with the underlying Edale Shale Group. The term gritstone describes any sandstone composed of coarse angular grains, and specifically refers to such sandstones within the Pennines and neighbouring areas of Northern England. Geographical occurrence Rocks assigned to the Millstone Grit Group occur over a wide area of Northern England, where they are a hugely important landscape-forming element of the rock succession. They also occur in parts of northeast Wales and northwest Ireland. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest Of Bowland
The Forest of Bowland, also known as the Bowland Fells and formerly the Chase of Bowland, is an area of gritstone fells, deep valleys and peat moorland, mostly in north-east Lancashire, England, with a small part in North Yorkshire (however roughly half of the area falls into the area of the historic West Riding of Yorkshire). It is a western outlier of the Pennines. The Forest of Bowland was designated an Area of Outstanding Natural Beauty (AONB) in 1964. The AONB also includes a detached part known as the Forest of Pendle separated from the main part by the River Ribble, Ribble Valley, and anciently a royal forest with its own separate history. One of the best-known features of the area is Pendle Hill, which lies in Pendle Forest. There are more than 500 listed buildings and 18 scheduled monuments within the AONB. The Trough of Bowland is a pass connecting the valley of the River Wyre, Marshaw Wyre with that of Langden Brook, and dividing the upland core of Bowland into two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yorkshire Dales
The Yorkshire Dales are a series of valleys, or Dale (landform), dales, in the Pennines, an Highland, upland range in England. They are mostly located in the Ceremonial counties of England, ceremonial county of North Yorkshire, but extend into Cumbria and Lancashire; they are entirely within the Historic counties of England, historic boundaries of Yorkshire. The majority of the dales are within the Yorkshire Dales National Park, created in 1954. The exception is the area around Nidderdale, which forms the separate Nidderdale AONB, Nidderdale Area of Outstanding Natural Beauty. The landscape of the Yorkshire Dales consists of sheltered glacial valleys separated by exposed moorland. The predominant rock is Carboniferous Limestone, which is particularly visible in the south-west in features such as Malham Cove. It is overlain in many areas by the Yoredale Series of alternating weak shales and hard limestones and sandstones, which give the dales their characteristic 'stepped' appeara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone is a type of carbonate rock, carbonate sedimentary rock which is the main source of the material Lime (material), lime. It is composed mostly of the minerals calcite and aragonite, which are different Polymorphism (materials science), crystal forms of calcium carbonate . Limestone forms when these minerals Precipitation (chemistry), precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly Dolomite (rock), dolomite, a closely related rock, which contains a high percentage of the mineral Dolomite (mine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
