Great Glen - Loch Linnhe - Firth of Lorn - Inverness - Aspy Fault - Kessock Bridge - Loch Ness - Fault (geology) - Scotland - Ireland - Lough Foyle - Donegal Bay - Clew Bay - Shetland - North America - Atlantic Ocean - Mid-Atlantic Ridge - Newfoundland (island) - Gulf of Saint Lawrence - Caledonian orogeny - Laurentia - Baltic Shield - Silurian - Devonian - Carboniferous Great Glen Fault Download PDF. Aligned northeast to southwest, the Great Glen Fault … It is shown that mylonite is extremely rare in the plane of the Great Glen fault, and that horizontal slickensides or friction-grooves directed along the Glen are virtually absent. after A-levels including undergraduate and further degrees Grave doubt is consequently thrown on the alleged horizontal displacement in the fault zone. The Great Glen Fault is a long strike-slip fault that runs through its namesake the Great Glen in Scotland. The Great Glen Fault is such an important feature both geologically and topographically that it has attracted special attention and has an extensive literature. The Great Glen Fault . (en) Розлом Грейт-Глен - що прямує долиною Грейт-Глен, Шотландія. An Gleann Mòr, (The Great Glen), is a large geological fault, which runs for over 100 kilometres from Inverness, on the Moray Firth, to Fort William, at the head of Loch Linnhe. The fault continues on the North American side of the North Atlantic Ocean, but is no longer part of a contiguous fault, as the complete fault was broken when the Mid-Atlantic Ridge formed 200 million years ago. „Großes Tal“ von schottisch-gälisch gleann mòr), auch Glen More genannt, ist eine tektonische Verwerfung (Great Glen Fault), die mitten durch Schottland verläuft und das schottische Hochland in die Grampian Mountains und die Northwest Highlands unterteilt. The Great Glen fault, for which a strike-slip displacement of about 2,000 km is proposed from paleomagnetic data by Van der Voo and Scotese, transects the metamorphic Caledonides of Scotland. opportunities. Fortunately, none of the modern day infrastructure has been affected by the tremors, as the latest one to affect Inverness and the surrounding area occurred in September 1901 and was approximately a 5.0 magnitude quake. It formed towards the end of the Caledonian orogeny (mountain building) associated with the collision between the Laurentia and Baltic tectonic plates at the end of the Silurian period continuing into the Early Devonian (likely age range - 430-390 Ma (million years)). Keep up to date with activities, news and events and find out how Fellows can get involved. These glaciers carved the valley below present-day sea level, forming a series of deep lakes. Visible from space, the Great Glen is a huge valley in the Scottish Highlands, eroded by glaciers more than 10,000 years ago. Great Glen Fault . The Geological Society offers grades of membership for every stage of your career, from student to retirement. You have disabled cookies which will render many features of the GSL website unusable. Great Glen Fault.Nature, Vol. Structure and early kinematic history of the Great Glen Fault Zone, Scotland M. Stewart • and R. A. Strachan Department of Geology, Oxford Brookes University, Headington, Oxford R. E. Holdsworth Reactivation Research Group, Department of Geological Sciences, University of Durham, England Abstract. Kennedy showed that the fault had moved sideways – as a so-called strike-slip (or wrench) fault. The fault runs along the boundary between ...continue reading, © 2012 The Geological Society of London, registered charity, number: 210161, Get involved in our plate tectonics competition, Accredited CPD and training course listings, Accreditation of Company Training Schemes, Quarterly Journal of Engineering Geology and Hydrogeology, Geochemistry Exploration Environment Analysis, Proceedings of the Yorkshire Geological Society, Transactions of the Edinburgh Geological Society, Transactions of the Geological Society of Glasgow, Accredited degrees and university departments, Instructions for reviewers and publishers. Updates on outreach activities, information about how the geosciences interact with society, details of policy related meetings, consultation responses, and policy briefing notes. The Great Glen Fault is a tear or strike-slip fault with a displacement estimated at 64 miles (104 km). It follows a geological fault known as the Great Glen Fault, and bisects the Scottish Highlands into the Grampian Mountains to the southeast and the Northwest Highlands to the northwest. Caledonian Channel: East-West connection for boats . The powerful dislocation which intersects Scotland along the line of the Great Glen has, in the past, been regarded by most geologists as a normal or dip-slip fault with a predominant vertical downthrow to the south-east. It formed towards the end of the Caledonian orogeny associated with the collision between the Laurentia and Baltic tectonic plates at the end of the Silurian continuing into the Early Devonian (likely age range 430–390 Ma (million years)). Published: 21 June 1974; Great Glen Fault. The fault is actually much longer, and over 400 million years old. Jump to navigation Jump to search. The North American side of the fault runs through the length of northwestern Newfoundland, Canada, as the Cabot Fault (Long Range Fault) and on into the Gulf of St. Captions. Loch Ness is the largest and most famous of the lakes. Information about the Geological Society’s internationally acclaimed books and journals for authors, editors, librarians and readers. During supercontinent Pangea, the Aspy Fault in the Cape Breton Highlands was likely connected to Scotland's Great Glen Fault, home to Loch Ness. This website uses cookies to give you the best user experience. 249, Issue. Moving to the west of Speyside, in the area called the Grampian Highlands, which lies between the Highland Boundary Fault to the south and the Great Glen Fault to the north, is an area that stretches from the islands of Islay and Jura in the south-west to the Buchan coast in the north-east. A fault is where tectonic plates meet. Erosion along the fault zone during Quaternary glaciation formed the famous Loch Ness. These instructions are also obtainable from the privacy & cookies link at the bottom of any GSL page. Information on our Specialist and Regional groups, Joint Associations and Networks. Great Glen Fault Download PDF. It extends in both directions beyond mainland Scotland. The fault is actually much longer, and over 400 million years old. (uk) rdfs:label: Great Glen Fault … This broken rock has guided erosion to form the deep linear depression of the G… The displacement is estimated to be 64 miles (104 km).[3]. If you continue without changing your settings we'll assume you are happy to receive all GSL cookies. geosciences training or exploring lifelong learning The Great Glen Fault is a long strike-slip (transcurrent) fault that runs through its namesake the Great Glen (Glen Albyn) in Scotland.However, the fault is actually much longer and over 400 million years old. It formed towards the end of the Caledonian orogeny (mountain building) associated with the collision between the Laurentia and Baltic tectonic plates at the end of the Silurian period continuing into the Early Devonian (likely age range - 430-390 Ma (million years)). Discover and access geoscience information resources via one of the world’s premier Earth science libraries. It consists of a zone of crushed rock (now represented mainly by indurated cataclasite) up to 0.5 km wide, flanked by zones of minor faulting and shattering. The Great Glen Fault has a long movement history. It was one of the first such structures to gain wide acceptance and in the years before plate tectonics was established, was important evidence for large-scale lateral earth movements. The Great Glen Fault had its final phase of movement during the Late Cretaceous to Early Tertiary. File; File history; File usage on Commons; File usage on other wikis; No higher resolution available. The Great Glen hosts the most prominent fault in the British Isles, the Great Glen Fault. The glen is … The tectonic complexities associated with this configuration require further evaluation. Ruins and monasteries on deep lakes. The Great Glen Fault is a long strike-slip (transcurrent) fault that runs through its namesake the Great Glen (Glen Albyn) in Scotland. The movement at that time was sinistral (left-lateral), the same as the closely related set of faults sub-parallel to the main part of the Great Glen Fault, which include the Strathconon Fault and Strathglass Faults to the northwest and the Laggan Fault, Tyndrum Fault, and Ericht-Laidon Fault to the southeast. It is shown that mylonite is extremely rare in the plane of the Great Glen fault, and that horizontal slickensides or friction-grooves directed along the Glen are virtually absent. Der Great Glen Fault hat eine lange Bewegungsgeschichte. In the Highlands, earthquakes are linked to seismic activity along the ancient Great Glen Fault, a zone of fractures in two blocks of rock that are moving slowly in opposite directions. A zone of shattered rock along the length of the fault is prone to erosion and this has given rise to the development of the most extensive valley in Scotland, the Great Glen ( Glen Mor ). It consists of a zone of crushed rock (now represented mainly by indurated cataclasite) up to 0.5 km wide, flanked by zones of minor faulting and shattering. Geoscientist is the Fellowship magazine of the Geological Society: with news about science, people, the Society, features, reviews, opinion, letters and forthcoming events. Information and resources for teachers and students from These instructions are also obtainable from the privacy & cookies link at the bottom of any GSL page. All this, and more, can be found sooner here, in our online version. A 6th century abbey along the way marks the … The fault is mostly inactive today, but occasional moderate tremors have been recorded over the past 150 years which has meant that seismic buffers are built into the Kessock Bridge carrying the A9 out of Inverness. The Great Glen Fault is such an important feature both geologically and topographically that it has attracted special attention and has an extensive literature. This website uses cookies to give you the best user experience. The Glen has always been a natural travelling route in the Highlands of Scotland, and incorporates the Caledonian Canal and A82 road. THE Great Glen Fault was shown by W. Q. Kennedy 1 to be a sinistral tear fault on which a displacement of about 65 miles has occurred since Middle Old Red Sandstone time. They are often valleys because the rock has been fractured by pressure and movement and weathers more easily. Published: 21 June 1974; Great Glen Fault. The Great Glen Fault (GGF) is a major transcurrent fault zone of Caledonian inheritance that initially experienced sinistral motion during Paleozoic times and later reactivated as a dextral system during Cenozoic times. Enquire about room hire and conference facilities at Burlington House. The Great Glen, a major geological fault line cutting diagonally across the Highlands from Fort William to Inverness, is the defining geographic feature of the north of Scotland. Least 300 miles ( 104 km ). [ 3 ] 480 km ).. Render many features of the fault zone 250 pixels, File size: KB... User experience facilities at Burlington House and weathers more easily valley, by... Rocks flanking this Leannan fault is largely covered with lakes, which are connected... Granitic, basic, and how we can help you achieve and Chartered! The world, the Great Glen in Scotland all this, and view past meeting resources ‎ ( 144 250! 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