The Cardigan Pluton was built during what Middle Devonian period?
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Cardigan Pluton The Cardigan Pluton is the most voluminous pluton in the state of New Hampshire, United States. The onset of magmatism was during the Acadian orogeny, and the pluton is part of the Kinsman suite of the New Hampshire Plutonic Series. The pluton is approximately 20 km wide by 90 km long and on average about 2.5 km thick. It is exposed in west-central New Hampshire along a north-northeast by south-southwest axis, extending from the town of Groton in the north to Dublin in the south. Mount Cardigan, from which the pluton is named, stands near the north end.
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Acadian orogeny The Acadian orogeny is a long-lasting mountain building event which began in the Middle Devonian, reaching a climax in the early Late Devonian. It was active for approximately 50 million years, beginning roughly around 375 million years ago, with deformational, plutonic, and metamorphic events extending into the Early Mississippian. The Acadian orogeny is the third of the four orogenies that created the Appalachian orogen and subsequent basin. The preceding orogenies consisted of the Potomac and Taconic orogeny, which followed a rift/drift stage in the Late Neoproterozoic. The Acadian orogeny involved the collision of a series of Avalonian continental fragments with the Laurasian continent. Geographically, the Acadian orogen extended from the Canadian Maritime provinces migrating in a southwesterly direction toward Alabama. However, the Northern Appalachian region, from New England northeastward into Gaspé region of Canada, was the most greatly affected region by the collision.
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Illinoian (stage) The Illinoian Stage is the name used by Quaternary geologists in North America to designate the period c.191,000 to c.130,000 years ago, during the middle Pleistocene, when sediments comprising the Illinoian Glacial Lobe were deposited. It precedes the Sangamonian stage and follows the Pre-Illinoian Stage in North America. The Illinoian Stage is defined as the period of geologic time during which the glacial tills and outwash, which comprise the bulk of the Glasford Formation, accumulated to create the Illinoian Glacial Lobe.
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Loogh Formation The Loogh Formation is a geologic formation in Germany. It preserves fossils dating back to the Devonian period.
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Teign Valley Group The Teign Valley Group is a late Devonian to late/middle Carboniferous lithostratigraphic group (a sequence of rock strata) in north Cornwall through Devon and into west Somerset in southwest England. The name is derived from the valley of the River Teign. The Group comprises (in ascending order i.e. oldest first) the Barras Nose, Trambley Cove, Teign Chert and Dowhills Mudstone formations. It was formerly known as the Lower Culm Group or Lower Culm Measures.
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Hume Formation The Hume Formation is a geologic formation in the Northwest Territories, Canada. It preserves fossils dating back to the Devonian period.
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Late Ordovician glaciation The Late Ordovician Glaciation is a period at the end of the Ordovician that started at the border between the Katian and Hirnantian about 440-460 Ma (million years ago). The major glaciation during this period is widely considered to be the leading cause of the Ordovician-Silurian extinction event. Evidence of this glaciation can be seen in places such as Morocco, South Africa, Libya, and Wyoming. More evidence derived from isotopic data is that during the Late Ordovician, Tropical ocean temperatures were about 5 °C cooler than present day, this would have been a major factor that aided in the glaciation process.
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Nevada Group The Nevada Group is a geologic group in Nevada. It preserves fossils dating back to the Devonian period.
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Piute Formation The Piute Formation is a geologic formation in Nevada. It preserves fossils dating back to the Devonian period.
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Canadaway Group The Canadaway Group is a geologic group in Pennsylvania. It preserves fossils dating back to the Devonian period.
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Simla Formation The Simla Formation is a geologic formation in Alberta. It preserves fossils dating back to the Devonian period.
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Wide Bay Series The Wide Bay Series is a geologic formation in Norway. It preserves fossils dating back to the Devonian period.
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Tarratine Formation The Tarratine Formation is a geologic formation in Maine. It preserves fossils dating back to the Devonian period.
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Sonoma orogeny The Sonoma orogeny was a period of mountain building in western North America. The exact age and structure of the Sonoma orogeny is controversial. The orogeny is generally thought to have occurred during the Permian / Triassic transition, around 250 million years ago, following the Late Devonian Antler orogeny. The Sonoma orogeny was one of a sequence of accretionary events along the Cordilleran margin, possibly caused by the closure of the basin between the island arc of Sonomia and the North American continent. Evidence of this event has been reported throughout western North America, but most distinctly in northwest Nevada.
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Givetian The Givetian is one of two faunal stages in the Middle Devonian period. It lasted from round 5 million years ago to round 5 million years ago. It was preceded by the Eifelian stage and followed by the Frasnian stage. It is named after the town of Givet in France.
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Kerpen Formation The Kerpen Formation is a geologic formation in Germany. It preserves fossils dating back to the Devonian period.
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Drepanolepis Drepanolepis is an extinct genus of thelodont which lived in Canada during the Early Devonian period.
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Celcius Bjerg Formation The Celcius Bjerg Formation is a geologic formation in Greenland. It preserves fossils dating back to the Devonian period.
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Susquehanna Group The Susquehanna Group is a geologic group in Pennsylvania. It preserves fossils dating back to the Devonian period.
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Garden Island Formation The Garden Island Formation is a geologic formation in Michigan. It preserves fossils dating back to the Devonian period.
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Knoydart Formation The Knoydart Formation is a geologic formation in Nova Scotia. It preserves fossils dating back to the Devonian period.
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Allenby Formation The Allenby formation is a sedimentary rock formation deposited during the early to early Middle Eocene. It consists of conglomerates, sandstones with interbedded with shales and coal. The coal seams contain an abundance of insect, fish and plant fossils, particularly in the Princeton Chert.