Dob’s Linn near Moffat is one of the sites where, in the 1860’s and 1870’s, Charles Lapworth (1842 – 1920) collected and studied the fossilised graptolites of the Southern Uplands. The Southern Uplands contain 10 or more distinct deep-water stratigraphic sequences consisting of basalt and chert and/or graptolitic shale, below thick greywackes. Not only are the greywackes, shales and igneous emplacements still visible but one can also decipher the fault lines upon which the Southern Uplands were thrusted onto land, the power of plate … They lie south of the Southern Uplands Fault line that runs from Ballantrae on the Ayrshire coast northeastwards to Dunbar in East Lothian on the North Sea coast, a distance of some 220 km (140 mi). 4.800 und 8.800 m). Languages. Gazetteer for Scotland. Raven Gill in the Southern Uplands – the landscape here is underlain by 485 million year old sediments dating from the Ordovician geological period, including shales, and chert from the floor of the lapetus Ocean. Just better. From 60 Ma to 55 Ma, what is now the Western seaboard of Scotland from Arran to Skye, and the North of Ireland became a centre of intense volcanic activity erupting vast amounts of basaltic magma and intruding plutons, sills and dykes far and wide into surrounding rocks. Carboniferous sedimentary rocks of the Midland Valley, and separate English basins, overlap onto the Southern Uplands. Structural interpretations of the … Most, if not all of the accretionary complex would have been underwater until the later stages of its formation and material would have been stripped from its steep surfaces and transported and deposited at its base by turbidity currents, and from there, recycled back into the prism. Quite the same Wikipedia. © Image reproduced by kind permission of The trustees National Museums Scotland. Particularly striking examples of glacial streamlining are represented along the margins of the Tweed valley. Jahre) ist diese Inselgruppe dann mit dem späteren England und Wales (Baltische Kontinentalplatte) aufeinandergeprallt, wobei sich die Highlands und Southern Uplands ausgebildet haben. In the same period, further west, the Birrenswark Formations olivine-rich basalts were erupted . Work initially started in the Old Red Sandstone on the southern margins of the Highlands but soon extended into the Moray Firth and Grampians area. Advanced search; Geological Society of London Publications. The route links Portpatrick in the west and Cockburnspath in the east via the hills of the Southern Uplands. View Academics in Southern Uplands (Caledonian Geology) on Like the rocks of Northern England, there are rocks here that tell the tale of the convergence and collision of the ancient Laurentian, Avalonian, Baltican, Armorican and Gondwana tectonic plates and the compressive, transtentional and extensional forces that resulted. ... raised and folded into a mountain chain that forms the foundation of the Southern Uplands. Our new data also allow us to present further constraints on the geodynamic model for this part of the Caledonian orogenic belt. The Central Uplands are characterized by highly dissected low Two major junctions within Scotland’s crustal foundations occur within the area and are associated with the closure of the Caledonian Orogeny and the closure of the Iapetus Ocean. Adjacent sequences differ in sedimentary characteristics and age, indicating that they were originally deposited far apart. The Southern Belt (Riccarton Group) comprises all rocks of Wenlock age and is divided into two formations — the Ross Formation and the Raeberry Castle Formation which can be recognised throughout the Southern Uplands. In the south, running in a NE-SW direction under the Solway and border area of Scotland and England, there is the ‘Iapetus Suture’, which marks the zone of closure of the ancient ocean. The Southern Uplands is the least populated of mainland Scotland's three major geographic areas. They lie south of the Southern Uplands Fault line that runs from Ballantrae on the Ayrshire coast northeastwards to Dunbar in East Lothian on the North Sea coast, a distance of some 220 km (140 mi). The Mull volcano in particular drove a number of these tholeiite basalt dykes across the region from north-west to south-east into Northern England – the Cleveland and Acklington dykes being the most prominent. The Pangaean supercontinent continued to move northwards carrying the region into and beyond equatorial latitudes where wet tropical conditions supported tropical rainforest. The website is run by the Scottish Geology Trust. Formerly regarded as an outlier of Lower Old Red Sandstone conglomerate within the Northern Belt of the Southern Uplands, the newly defined Lamington Conglomerate Member is now proposed to be an integral part of the Marchburn Formation (Tappins Group) of Ordovician (Caradoc) age. Locharbriggs Quarry – a stone quarry near Dumfries from which desert dune bedded Permian age sandstone is worked. The resulting mass of sediments, known as the Southern Uplands Accretionary Complex, is regarded by many to be the best-preserved ancient accretionary complex in the world. The two formations outcrop in the Abington area.Next in line came the Moffat shale group deposited here in the mid-Ordovician to mid-Silurian periods (460 to 430 million years ago). The Southern Uplands contain 10 or more distinct deep-water stratigraphic sequences consisting of basalt and chert and/or graptolitic shale, below thick greywackes. The Way is designated as one of Scotland's Great Trails by NatureScot and is the longest of the 29 Great Trails. The historical background to the naming of the fault is discussed and a definition proposed for the Southern Upland Fault ( sensu strictu ). As the Late Carboniferous transitioned into the Permian period (299 – 252 Ma), effects of the final tectonic movements that had brought about the Pangaean supercontinent’s completion became evident in the region. Pebbles and cobbles (up to 210 mm in size) are dominated by gabbroic and basaltic lithologies, … The terrane formed as an accretionary thrust complex at the Laurentian continental margin during Late Ordovician to mid Silurian subduction of the Iapetus Ocean. A broad expanse of Ordovician and Silurian strata underlies the rolling hills of the Southern Uplands, forming a distinctive geological terrane that extends westward across Northern Ireland and into the Irish Republic. At one stage ice covered the whole of Scotland with the main accumulations in the Southern Uplands being north of Glentrool and in the Tweedsmuir Hills and Moffat Hills. It is now believed that this may have been triggered by a strong mantle plume or hot spot. The Southern Uplands are formed from strongly folded sedimentary rocks from the Ordovician and Silurian period, 395-500 million years ago, mainly shales, mudstones, slates and greywackes. ^ "Overview of Southern Uplands Fault". The minor folds in the Coldingham Beds are much more complex than those found … In the west, rocky shorelines contrast with the wide expanses of sand flat, mudflat and salt marsh in the inner Solway Firth. Although the Southern Upland Fault (SUF) is widely recognized as a major Caledonoid crustal structure in south Scotland, the derivation of the term ‘SUF’ has never been definitively established. Following further rotation and uplift by compressive forces, a swarm of calc-alkaline felsic and lamprophyre dykes then cut the accretionary complex in advance of the emplacement, early in the Devonian period (c420-390 Ma), of large granitic plutons at Criffel, Cairnsmoor of Fleet and Loch Doon. Sedimentology, volcanism, structure metamorphism of the northern margin of a lower Palaeozoic accretionary complex: Bail Hill-Abington area of the Southern Uplands of Scotland, In J. K. Leggett (Ed. 2). Transactions of the Royal Society of Edinburgh: Earth Sciences 91 (for 2000), 323 –39. Currently, there are two recognised formations: the Raven Gill formation and the Kirkton formation. These plutons are related to the granitic plutons of North-Western England and also to the slightly later Cheviot pluton to the east – but with interesting and not fully explainable, differences.The section on Igneous rocks in the Southern Uplands and Ballantrae Area begins to explore this more fully. Permian-age (250 million year old) desert deposits occur in basin within the Region around Dumfries and Lochmaben. The Glacial Geology of the Southern Uplands of Scotland, West of Annandale and Upper Clydesdale - Volume 55 Issue 1 - J. Kaye Charlesworth. 2002 The Ballantrae Complex and Southern Uplands terrane. Other articles where Southern Uplands is discussed: United Kingdom: The highland zone: …with the Scottish Highlands, the Southern Uplands of Scotland present a more subdued relief, with elevations that never exceed 2,800 feet (850 metres). There is no well-studied modern/Neogene margin which can be established as the 'type' accretionary prism. The Southern Uplands Fault (or occasionally Southern Upland Fault) is a fault in Scotland that runs from Girvan (or more specifically from the Rhins of Galloway) to Dunbar on the East coast. The Southern Uplands consist mainly of Silurian sedimentary deposits deposited in the Iapetus Ocean from 500–400 million years ago. Immense compressive forces were building mountains in South-western England and Wales building and permitting plutonic emplacement. Most of the Jurassic and Cretaceous sequences disappeared as did some of the Carboniferous and Devonian rocks revealing the Palaeozoic basement rocks. However, despite the overall variety, by far the largest area is underlain by Ordovician and Silurian, deep-marine sedimentary rocks, … to south of somerset there upland series of rolling valleys , scarps, penselwood in east blackdown hills, designated area of outstanding natural beauty, in west. The broad, rolling hills are bound to the north by the Southern Uplands Fault, while their southern edge coincides with one of Britain’s major geological divides – the Iapetus Suture. The tropical conditions supported lush Carboniferous plant growth that led to the deposition of coal deposits and warm shallow waters gave rise to marine life and so to limestones along with siltstones and mudstones. Much of the Southern Uplands are comprised of Ordovician and Silurian rocks that were once sands and muds deposited on the floor of the Iapetus Ocean. Live Statistics. The Southern Uplands is the least populated of mainland Scotland's three major geographic areas. Earth movements caused physical and chemical transformation and re-distribution or rock material together with the production and movement of magmas that gave rise to a variety of geological features.The oldest rocks that we give an account of in this section aren’t, strictly speaking, in this discrete geological block, but they are so bound up with the closure of the Iapetus Ocean that we have included them.

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