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Iapetus Suture information


Reconstruction showing the collision of three paleocontinents during Caledonian orogeny approximately 390 million years ago. The red line shows where the Iapetus Suture extends through present-day Ireland and Great Britain. A related suture through Denmark, Poland and Ukraine is the Trans-European Suture Zone.

The Iapetus Suture is one of several major geological faults caused by the collision of several ancient land masses forming a suture. It represents in part the remains of what was once the Iapetus Ocean. Iapetus was the father of Atlas in Greek mythology, making his an appropriate name for what used to be called the 'Proto-Atlantic Ocean'. When the Atlantic Ocean opened, in the Cretaceous period, it took a slightly different line from that of the Iapetus suture, with some originally Laurentian rocks being left behind in north-west Europe and other, Avalonian, rocks remaining as part of Newfoundland.

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Iapetus Suture

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The Iapetus Suture is one of several major geological faults caused by the collision of several ancient land masses forming a suture. It represents in...

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Caledonian orogeny

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the whole region involved an Iapetus Ocean slab which did not just break off. It also peeled back below the Iapetus Suture for c. 100 km to the SE below...

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Trilobite

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North America and Europe implied the closure of the Iapetus Ocean (producing the Iapetus suture), thus providing important supporting evidence for the...

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Iapetus Ocean

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Atlantic's initial opening in the Jurassic. The Iapetus Ocean was therefore named for the titan Iapetus, who in Greek mythology was the father of Atlas...

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Outline of plate tectonics

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eastwards into the Argentine Shelf Iapetus Suture – Ancient geological fault Indus-Yarlung suture zone – Tectonic suture in southern Tibet Jormua Ophiolite –...

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Geology of the North Sea

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interior. The Caledonian (Iapetus) plate cycle saw the formation of the Iapetus suture during the Caledonian orogeny. The Iapetus suture was a major weakness...

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Geology of Great Britain

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of obducted oceanic crust, (i.e. an Ophiolite). Iapetus Suture – line of closure of the Iapetus suture. Great Britain's complex geology has provided it...

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Scandinavian Caledonides

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continental break-up of Rodinia and the opening of the Iapetus ocean about 616–583 Ma (mega-annum) ago. The Iapetus was at its widest in the Late Cambrian–Early...

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Baltica

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the Iapetus Ocean. In the Silurian, c. 425 Ma, the final collision between Scotland-Greenland and Norway resulted in the closure of the Iapetus and the...

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Maine

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its present location from near Lucerne, 30 miles (48 km) away. The Iapetus Suture runs through the north and west of the state, being underlain by the...

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Geology of Scotland

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Uplands Fault and the Iapetus Suture, which runs from the Solway Firth to Lindisfarne and which marks the close of the Iapetus Ocean and the joining of...

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Scandinavian Mountains

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and upon themselves. This occurred in connection to the closure of the Iapetus Ocean as the ancient continents of Laurentia and Baltica collided. This...

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Cayugan Series

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the Iapetus Ocean was slowly shrinking. The north end of the sea had already closed. At the end of the Silurian and of the Cayugan Series, the Iapetus Ocean...

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Cape Breton Highlands National Park

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evidence of this collision, the closing of the Iapetus Ocean and the formation of the Iapetus Suture, is seen in the northwest part of the park where...

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Tornquist Sea

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across Denmark. It probably formed at the same time (c. 600 Ma) as the Iapetus Ocean. Gondwana, including Avalonia until Early Ordovician, was separate...

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Ganderia

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District. The western margin of Ganderia is the Red Indian Line of the Iapetus Suture. The basement beneath Ganderia is unexposed, but the rock of the Green...

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Geology of the Isle of Man

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the cliff at Niarbyl on the west coast is considered to represent the Iapetus Suture, the welding together of the former continents of Laurentia and Avalonia...

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Geology of the Lake District

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of intrusions found within a SW–NE trending belt that straddles the Iapetus Suture. Granites of this age include the Shap Granite, the Skiddaw Granite...

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Leixlip Spa

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from North East to South West Ireland, broadly along the line of the Iapetus Suture Zone. Blake also noted that this spring has a residence time in excess...

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Kilflynn

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Europe and Africa. This area is thus part of the Iapetus Suture, that is a region where the ancient Iapetus Ocean closed up. The Atlantic Ocean had yet to...

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Ammonoosuc Volcanics

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Volcanics originally formed along the far edge of the Iapetus Ocean relative to New England. As the Iapetus Ocean closed, the Ammonoosuc Volcanics got closer...

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Rheic Ocean

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named for Iapetus, in Greek mythology the father of Atlas (from which source the Atlantic Ocean ultimately gets its name), just as the Iapetus Ocean was...

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British Institutions Reflection Profiling Syndicate

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Avalonia and Laurentia, particularly the location and geometry of the Iapetus Suture. The WAM (Western Approaches Margin) profile was shot in 1985 to investigate...

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Geological structure of Great Britain

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continent of Laurentia whose southeastern margin is defined by the Iapetus Suture Zone, which runs parallel to the English-Scottish border, though some...

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Laurasia

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mantle plume (the Central Iapetus Magmatic Province) forced Laurentia and Baltica to separate ca. 650–600 Mya and the Iapetus Ocean opened between them...

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