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Geology Of County Durham
: ''This article describes the geology of the ceremonial county of Durham. It includes the boroughs of Darlington, Hartlepool and Stockton-on-Tees but not those former northeastern parts of the county which are now in the county of Tyne and Wear.'' The geology of County Durham in northeast England consists of a basement of Lower Palaeozoic rocks overlain by a varying thickness of Carboniferous and Permo-Triassic sedimentary rocks which dip generally eastwards towards the North Sea. These have been intruded by a pluton, sills and dykes at various times from the Devonian Period to the Palaeogene. The whole is overlain by a suite of unconsolidated deposits of Quaternary age arising from glaciation and from other processes operating during the post-glacial period to the present. The geological interest of the west of the county was recognised by the designation in 2003 of the North Pennines Area of Outstanding Natural Beauty as a European Geopark. The word 'geology' may be traced b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Geology
Geology (). is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology. It is integrated with Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface and the processes that have shaped that structure. Geologists study the mineralogical composition of rocks in order to get insight into their history of formation. Geology determines the relative ages of rocks found at a given location; geochemistry (a branch of geology) determines their absolute ages. By combining various petrological, crystallographic, and paleontological tools, geologists are able to chronicle the geological history of the Earth as a whole. One aspect is to demonstrate the age of the Earth. Geology provides evidence for plate tectonics, the ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Sill (geology)
In geology, a sill is a tabular sheet intrusion that has intruded between older layers of sedimentary rock, beds of volcanic lava or tuff, or along the direction of foliation in metamorphic rock. A sill is a ''concordant intrusive sheet'', meaning that it does not cut across preexisting rock beds. Stacking of sills builds a sill complex. and a large magma chamber at high magma flux. In contrast, a dike is a discordant intrusive sheet, which does cut across older rocks. Formation Sills are fed by dikes, except in unusual locations where they form in nearly vertical beds attached directly to a magma source. The rocks must be brittle and fracture to create the planes along which the magma intrudes the parent rock bodies, whether this occurs along preexisting planes between sedimentary or volcanic beds or weakened planes related to foliation in metamorphic rock. These planes or weakened areas allow the intrusion of a thin sheet-like body of magma paralleling the existi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Ordovician
The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era, and the second of twelve periods of the Phanerozoic Eon (geology), Eon. The Ordovician spans 41.6 million years from the end of the Cambrian Period Megaannum, Ma (million years ago) to the start of the Silurian Period Ma. The Ordovician, named after the Celtic Britons, Welsh tribe of the Ordovices, was defined by Charles Lapworth in 1879 to resolve a dispute between followers of Adam Sedgwick and Roderick Murchison, who were placing the same Rock (geology), rock beds in North Wales in the Cambrian and Silurian systems, respectively. Lapworth recognized that the fossil fauna in the disputed Stratum, strata were different from those of either the Cambrian or the Silurian systems, and placed them in a system of their own. The Ordovician received international approval in 1960 (forty years after Lapworth's death), when it was adopted as an official per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
The Philobiblon
The ''Philobiblon'', or ''The Love of Books'', is a collection of essays concerning the acquisition, preservation, and organization of books, written by the medieval English bibliophile Richard de Bury shortly before his death in 1345. The purposes of the ''Philobiblon'' were "to encourage the pursuit of learning contained in books; to justify the time and money e Buryspent on them; and to give practical advice for the formation of running of a library." Written in Latin, as was the custom of the day, it is separated into twenty chapters, each covering a different topic relating to book collecting. Whether or not de Bury was the actual author of the ''Philobiblon'' has been disputed. The controversy began because Bishop de Bury's biographer Chambres neglects to mention the book at all in de Bury's biography. It was once thought that de Bury's chaplain, Robert Holkot, was the author and a substantial body of evidence was gathered to argue that this was the case. Today, however, mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Bishops Of Durham
The bishop of Durham is head of the diocese of Durham in the province of York. The diocese is one of the oldest in England and its bishop is a member of the House of Lords. Paul Butler was the most recent bishop of Durham until his retirement in February 2024. The bishop is officially styled ''The Right Reverend (First Name), by Divine Providence Lord Bishop of Durham'', but this full title is rarely used. In signatures, the bishop's family name is replaced by ''Dunelm'', from the Latin name for Durham (the Latinised form of Old English ''Dunholm''). In the past, bishops of Durham varied their signatures between ''Dunelm'' and the French ''Duresm''. Prior to 1836 the bishop had significant temporal powers over the liberty of Durham and later the county palatine of Durham. The bishop, with the bishop of Bath and Wells, escorts the sovereign at the coronation. Durham Castle was a residence of the bishops from its construction in the 11th century until 1832, when it was given ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Richard De Bury
Richard de Bury (24 January 1287 – 14 April 1345), also known as Richard Aungerville or Aungervyle, was an English priest, teacher, bishop, writer, and bibliophile. He was a patron of learning and one of the first English collectors of books. He is chiefly remembered for his '' Philobiblon'', written to inculcate in the clergy the pursuit of learning and the love of books. The ''Philobiblon'' is considered one of the earliest books to discuss librarianship in-depth. Completed shortly before de Bury's death in 1345, the book wasn't published until 1473, and this "little treatise" as he described it, has been regularly reprinted in every century following. Early life Richard de Bury was born near Bury St Edmunds, Suffolk, the son of Sir Richard Aungervyle, who was descended from a knight who fought for William the Conqueror's men. Aungervyle settled in Leicestershire, and the family came into possession of the manor of Willoughby. Sir Richard Aungervyle died when de Bury was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
European Geopark
The European Geoparks Network (EGN) functions as the regional organization of the Global Geoparks Network (GGN) and the UNESCO International Geosciences and Geoparks Programme (UNESCO-IGGP). Its main objective is to ensure cooperation between geoparks for the protection of geological heritage and the promotion of sustainable development of their territories in Europe. In 2020 January, the EGN had 75 institutional members (UNESCO Global Geoparks) from 26 European countries and there are several aspiring geopark projects, applying for a UNESCO label and therefore the permanent EGN membership. History The 1990s are widely considered as the birth of geoheritage as a dedicated domain of the geosciences, dealing with the preservation and valorisation of the Earth's abiotical heritage, its geodiversity. The idea of coordinated work on geology-focused territorial frameworks in Europe was discussed during the International Geological Congress in Beijing, 1997. After preparatory meetings ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Area Of Outstanding Natural Beauty
An Area of Outstanding Natural Beauty (AONB; , AHNE) is one of 46 areas of countryside in England, Wales, or Northern Ireland that has been designated for conservation due to its significant landscape value. Since 2023, the areas in England and Wales have also adopted the name National Landscape (). Areas are designated in recognition of their national importance by the relevant public body: Natural England, Natural Resources Wales, and the Northern Ireland Environment Agency respectively. On 22 November 2023, following a review, the AONBs in England and Wales adopted the National Landscapes name, and are in the process of rebranding. AONBs in Northern Ireland did not rename. The name "area of outstanding natural beauty" is still the designated legal term. In place of the term AONB, Scotland uses the similar national scenic area (NSA) designation. Areas of Outstanding Natural Beauty enjoy levels of protection from development similar to those of UK national parks, but unli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
North Pennines
The North Pennines are the northernmost section of the Pennines, a range of hills which run north–south through northern England. They run along the border between County Durham and Northumberland in the east and Cumbria in the west, and are bounded to the north by the Tyne Valley and to the south by the Stainmore Gap. Much of the region is moorland, and it contains significant industrial archaeology. The North Pennines have been designated a national landscape and a UNESCO Global Geopark. Several major rivers rise in the North Pennines, including the Tees and Wear. The part of the area in County Durham, including Teesdale and Weardale, is known as the Durham Dales. Geology The North Pennines are formed from a succession largely of sedimentary rocks laid down during the Palaeozoic era, later intruded by the Whin Sill and affected by glaciation during the Quaternary period. Mud and volcanic ash deposited during the Ordovician and Silurian periods were buried and s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Holocene
The Holocene () is the current geologic time scale, geological epoch, beginning approximately 11,700 years ago. It follows the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene together form the Quaternary period. The Holocene is an interglacial period within the ongoing Ice age, glacial cycles of the Quaternary, and is equivalent to Marine isotope stages, Marine Isotope Stage 1. The Holocene correlates with the last maximum axial tilt towards the Sun of the Earth#Axial tilt and seasons, Earth's obliquity. The Holocene corresponds with the rapid proliferation, growth, and impacts of the human species worldwide, including Recorded history, all of its written history, technological revolutions, development of major civilizations, and overall significant transition towards urban culture, urban living in the present. The human impact on modern-era Earth and its ecosystems may be considered of global significance for th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Glaciation
A glacial period (alternatively glacial or glaciation) is an interval of time (thousands of years) within an ice age that is marked by colder temperatures and glacier advances. Interglacials, on the other hand, are periods of warmer climate between glacial periods. The Last Glacial Period ended about 15,000 years ago. The Holocene is the current interglacial. A time with no glaciers on Earth is considered a greenhouse climate state. Quaternary Period Within the Quaternary, which started about 2.6 million years before present, there have been a number of glacials and interglacials. At least eight glacial cycles have occurred in the last 740,000 years alone. Changes in atmospheric and associated radiative forcing were among the primary drivers of globally cold glacial and warm interglacial climates, with changes in ocean physical circulation, biological productivity and seawater acid-base chemistry likely causing most of the recorded changes Penultimate Glacial Period The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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] [Amazon] |
