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Badenoch Group
The Badenoch Group is a sequence of metamorphosed Tonian age sedimentary rocks that outcrop across the Central Highlands of Scotland, east of the Great Glen. This rock sequence has formerly been referred to as the Central Highland Migmatite Complex and the Central Highland Division. Badenoch Group rocks extend across the Monadhliath Mountains and some surrounding areas largely between the Great Glen and Ericht-Laidon fault belts though their margins are hidden beneath younger strata; Old Red Sandstone to the north and west and Grampian Group rocks elsewhere. The succession is divided into two subgroups; the Dava Subgroup (previously referred to as the Dava Succession) and the Glen Banchor Subgroup. The former, named from the locality of Dava between Inverness and Grantown-on-Spey includes the Slochd Psammite and Flichity Semipelite formations. The latter is named for Glen Banchor, west of Newtonmore, the type area being from here to Laggan. The Glen Banchor sequence is believed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Group (stratigraphy)
In geology, a group is a lithostratigraphic unit consisting of a series of related formations that have been classified together to form a group. Formations are the fundamental unit of stratigraphy. Groups may sometimes be combined into supergroups. Groups are useful for showing relationships between formations, and they are also useful for small-scale mapping or for studying the stratigraphy of large regions. Geologists exploring a new area have sometimes defined groups when they believe the strata within the groups can be divided into formations during subsequent investigations of the area. It is possible for only some of the strata making up a group to be divided into formations. An example of a group is the Glen Canyon Group, which includes (in ascending order) the Wingate Sandstone, the Moenave Formation, the Kayenta Formation, and the Navajo Sandstone. Each of the formations can be distinguished from its neighbor by its lithology, but all were deposited in the sam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metamorphism
Metamorphism is the transformation of existing rock (the protolith) to rock with a different mineral composition or texture. Metamorphism takes place at temperatures in excess of , and often also at elevated pressure or in the presence of chemically active fluids, but the rock remains mostly solid during the transformation. Metamorphism is distinct from weathering or diagenesis, which are changes that take place at or just beneath Earth's surface. Various forms of metamorphism exist, including regional, contact, hydrothermal, shock, and dynamic metamorphism. These differ in the characteristic temperatures, pressures, and rate at which they take place and in the extent to which reactive fluids are involved. Metamorphism occurring at increasing pressure and temperature conditions is known as ''prograde metamorphism'', while decreasing temperature and pressure characterize ''retrograde metamorphism''. Metamorphic petrology is the study of metamorphism. Metamorphic petrol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Newtonmore
Newtonmore ( gd, Baile Ùr an t-Sléibh ) is a village in the Highland council area of Scotland. The village is only a few miles from a location that is claimed to be the exact geographical centre of Scotland. Activities *Shinty - The town is renowned for having a shinty team, Newtonmore Camanachd Club, which plays at The Eilan next to the River Calder. * Walking - Newtonmore calls itself the "Walking Centre of Scotland", referring both to its geographical location and to the great walking opportunities locally, like thWildcat Trail An extension to the Speyside Way could soon add Newtonmore to a Long Distance Route and it will become the new end to this trail. * Golf - Newtonmore has a golf course on the banks of the Spey. * Bowling - The club is open to visitors. It has regular competitions with other clubs in Badenoch and Strathspey and with clubs from Perthshire and Aberdeenshire. * Mountain Biking - Manytrails in the local forests and tracks on the surrounding hills. * Fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grantown-on-Spey
Grantown-on-Spey ( gd, Baile nan Granndach) is a town in the Highland Council Area, historically within the county of Moray. It is located on a low plateau at Freuchie beside the river Spey at the northern edge of the Cairngorm mountains, about south-east of Inverness ( by road). The town was founded in 1765 as a planned settlement and was originally called simply Grantown after Sir James Grant. The addition 'on Spey' was added by the burgh council in 1898. The town has several listed 18th and 19th century buildings, including several large hotels and serves as a regional centre for tourism and services in the Strathspey region. The town is twinned with Notre-Dame-de-Monts in the Vendée, Pays de la Loire, France. History The burgh was founded in 1765 during the early stages of the Industrial Revolution to encourage both agricultural marketing and handicrafts, as well as to increase local land values and to reduce unemployment and emigration. This was part of a wider ef ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inverness
Inverness (; from the gd, Inbhir Nis , meaning "Mouth of the River Ness"; sco, Innerness) is a city in the Scottish Highlands. It is the administrative centre for The Highland Council and is regarded as the capital of the Highlands. Historically it served as the county town of the county of Inverness-shire. Inverness lies near two important battle sites: the 11th-century battle of Blàr nam Fèinne against Norway which took place on the Aird, and the 18th century Battle of Culloden which took place on Culloden Moor. It is the northernmost city in the United Kingdom and lies within the Great Glen (Gleann Mòr) at its northeastern extremity where the River Ness enters the Beauly Firth. At the latest, a settlement was established by the 6th century with the first royal charter being granted by Dabíd mac Maíl Choluim ( King David I) in the 12th century. Inverness and Inverness-shire are closely linked to various influential clans, including Clan Mackintosh, Clan Frase ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old Red Sandstone
The Old Red Sandstone is an assemblage of rocks in the North Atlantic region largely of Devonian age. It extends in the east across Great Britain, Ireland and Norway, and in the west along the northeastern seaboard of North America. It also extends northwards into Greenland and Svalbard. These areas were a part of the ancient continent of Euramerica/Laurussia. In Britain it is a lithostratigraphic unit (a sequence of rock strata) to which stratigraphers accord supergroup status and which is of considerable importance to early paleontology. For convenience the short version of the term, ORS is often used in literature on the subject. The term was coined to distinguish the sequence from the younger New Red Sandstone which also occurs widely throughout Britain. Sedimentology The Old Red Sandstone describes a suite of sedimentary rocks deposited in a variety of environments during the Devonian but extending back into the late Silurian and on into the earliest part of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monadhliath Mountains
The Monadhliath Mountains , or Monadh Liath, are a range of mountains in Scotland. Monadh Liath is Scottish Gaelic, and means "grey mountain range". Running in a northeast to southwest direction, it lies on the western side of Strathspey, to the west of the Cairngorms and to the south east of Loch Ness. Its southwestern limit is usually taken to be Corrieyairack Pass (763m) but similar uplands continue to Glen Roy and Spean Bridge. The range is within the Highland council area, and the south and east fringes are within the Cairngorms National Park. The high point of the range is Càrn Dearg, at , located south of Inverness. This is one of four Munros in the Monadhliath, the others being A'Chailleach (), Geal Chàrn (), and Càrn Sgulain (). The Monadhliath Mountains are designated a Special Area of Conservation (SAC). The Monadh Liath differs greatly in character from the greater Highland mountains to the south and west, as an elevated moorland with no proper ridges. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Glen
The Great Glen ( gd, An Gleann Mòr ), also known as Glen Albyn (from the Gaelic "Glen of Scotland" ) or Glen More (from the Gaelic ), is a glen in Scotland running for from Inverness on the edge of Moray Firth, in an approximately straight line to Fort William at the head of Loch Linnhe. 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. The glen is a natural travelling route in the Highlands of Scotland, which is used by both the Caledonian Canal and the A82 road, which link the city of Inverness on the northeast coast with Fort William on the west coast. The Invergarry and Fort Augustus Railway was built in 1896 from the southern end of the glen to the southern end of Loch Ness, but was never extended to Inverness. The railway closed in 1947. In 2002, the Great Glen Way was opened. A long-distance route for cyclists, canoeist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scottish Highlands
The Highlands ( sco, the Hielands; gd, a’ Ghàidhealtachd , 'the place of the Gaels') is a historical region of Scotland. Culturally, the Highlands and the Lowlands diverged from the Late Middle Ages into the modern period, when Lowland Scots replaced Scottish Gaelic throughout most of the Lowlands. The term is also used for the area north and west of the Highland Boundary Fault, although the exact boundaries are not clearly defined, particularly to the east. The Great Glen divides the Grampian Mountains to the southeast from the Northwest Highlands. The Scottish Gaelic name of ' literally means "the place of the Gaels" and traditionally, from a Gaelic-speaking point of view, includes both the Western Isles and the Highlands. The area is very sparsely populated, with many mountain range A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedimentary Rock
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place. The particles that form a sedimentary rock are called sediment, and may be composed of geological detritus (minerals) or biological detritus (organic matter). The geological detritus originated from weathering and erosion of existing rocks, or from the solidification of molten lava blobs erupted by volcanoes. The geological detritus is transported to the place of deposition by water, wind, ice or mass movement, which are called agents of denudation. Biological detritus was formed by bodies and parts (mainly shells) of dead aquatic organisms, as well as their fecal mass, suspended in water and slowly piling up on the floor of water bodies ( marine snow). Sedimentation may also occur as dissolved minerals precipita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Appin Group
The Appin Group is a thick sequence of metamorphosed Neoproterozoic sedimentary rocks that outcrop across the Central Highlands of Scotland, east of the Great Glen. It forms a part of the Dalradian Supergroup. It is divided into three subgroups each consisting of multiple named formations. In stratigraphic order i.e. youngest at the top, these are: Blair Atholl Subgroup :Islay Limestone Formation :Mullach Dubh Phyllites Formation :Lismore Limestone Formation :Cuil Bay Slates Formation Ballachulish Subgroup :Appin Phyllite & Limestone Formation :Appin Quartzite Formation :Ballachulish Slate Formation :Ballachulish Limestone Formation Lochaber Subgroup :Leven Schist Formation :Glencoe Quartzite Formation :Binnein Schist Formation :Binnein Quartzite Formation :Eilde Schist Formation :Eilde Quartzite Formation This whole succession reflects alternate periods of deepening and filling of the sedimentary basin Sedimentary basins are region-scale depressions of the Earth's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tonian
The Tonian (from grc, τόνος, tónos, meaning "stretch") is the first geologic period of the Neoproterozoic Era. It lasted from to Mya (million years ago). Instead of being based on stratigraphy, these dates are defined by the ICS based on radiometric chronometry. The Tonian is preceded by the Stenian Period of the Mesoproterozoic Era and followed by the Cryogenian. Rifting leading to the breakup of supercontinent Rodinia, which had formed in the mid-Stenian, occurred during this period, starting from 900 to 850 Mya. Biology The first putative metazoan (animal) fossils are dated to the middle to late Tonian ( 890-800 Mya). The fossils of ''Otavia antiqua'', which has been described as a sponge by its discoverers and numerous other scholars, date back to about 800 mya. Even earlier sponge-like fossils have been reported in reefs dating back to 890 million years before the present, but their identity is highly debated. This dating is consistent with molecular data recove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
