A passive margin is the transition between oceanic and continental lithosphere that is not an active plate margin. A passive margin forms by sedimentation...
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outermost zone of the continental margin. There are two types of continental margins: active and passive margins. Active margins are typically associated with...
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Volcanic passive margins (VPM) and non-volcanic passive margins are the two forms of transitional crust that lie beneath passive continental margins that...
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form a passive margin. In this case the sedimentary rocks of the rift basin phase are overlain by those rocks deposited during the passive margin phase...
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Geology of North America (section Passive Margin)
Atlantic Coast turned from an active margin into a passive one. Terranes were no longer accreted onto the margin; instead, sediment eroded off the Appalachians...
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Mountain formation (section Uplifted passive margins)
no widely accepted geophysical model that explains elevated passive continental margins such as the Scandinavian Mountains, eastern Greenland, the Brazilian...
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straits. A passive margin developed on the edges of these new seas in the Death Valley region. Carbonate banks formed on this part of the two margins only to...
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Extensional tectonics (section Passive margins)
antiformal closures and these are known as metamorphic core complexes. Passive margins above a weak layer develop a specific set of extensional structures...
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Non-volcanic passive margins (NVPM) constitute one end member of the transitional crustal types that lie beneath passive continental margins; the other...
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Baltica (section Northern margin)
Mesoproterozoic sediments. The margin became a passive margin facing the Ural Ocean in the Cambrian–Ordovician. The eastern margin stretches south through the...
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where passive margins form. The edges of these continents may rift. At this point, seafloor spreading becomes the driving force. Passive margins are therefore...
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as a passive margin. Some passive margins have up to 10 km of sedimentary and volcanic rocks covering the continental crust. As a passive margin is pulled...
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convergent margin. Along the then western margin, Late Neoproterozoic to early Cambrian rifting was followed by the development of a passive margin. To the...
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of the deep ocean basin proper, but the flooded margins of the continent. Passive continental margins such as most of the Atlantic coasts have wide and...
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Permian Basin (North America) (section Lower Paleozoic passive margin phase (late Precambrian–Mississippian, 850–310 Mya))
marine sedimentation onto the ancestral Tobosa Basin characterized the passive margin, shallow marine environment. The Tobosa Basin also contains basement...
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comprising the continental cratons. The margins of geologic continents are either active or passive. An active margin is characterised by mountain building...
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Tectonic subsidence (section Passive margins)
subsidence on a large scale in a variety of environments, including passive margins, aulacogens, fore-arc basins, foreland basins, intercontinental basins...
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models: Passive continental margin model Crystalline axis model Accreted terrane model Carboniferous-extension model This model is a single margin model...
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Syrian Arc (section Passive margin formation)
by extensional tectonics, was associated with the development of a passive margin in northern Africa as the Neotethys Ocean was formed. The second, dominated...
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continental margin coincident with the initiation of subduction. Thrust faulting uplifted and warped older sedimentary rock laid down on the passive margin. As...
86 KB (9,188 words) - 04:43, 20 September 2024
the passive margin of northeastern Laurussia (Baltica craton). The suture zone between the former island arc complex and the continental margin formed...
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have occurred within a rift basin that evolved into a largely marine passive margin setting. The glacial diamictite deposits within the Huronian are on...
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strike-slip faults, in back-arc basins, and on the continental end of passive margin sequences where a detachment layer is present. Thrust tectonics is associated...
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Gondwana was mostly a passive margin, hosting extensive marine deposits in areas such as northwest Africa and Tibet. The eastern margin, though warmer than...
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common on the steep slopes found on active margins compared to those on the gentler slopes found on passive margins. They show erosion through all substrates...
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Krishna Godavari Basin is a peri-cratonic passive margin basin in India. It is spread across more than 50,000 square kilometres in the Krishna River and...
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Rub' al Khali Basin (category Passive margins)
halite deposition. This tectonic regime gradually transitioned into a passive margin setting with the opening of the Neo-Tethys in the Early Triassic. During...
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South American Plate developed into a passive margin with the Proto-Caribbean Seaway. This stable passive margin allowed for thermal subsidence to occur...
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the modern convergence of the Australian passive margin under Eurasian oceanic crust, Arabian passive margin sediments became highly deformed and shortened...
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platforms and passive margin basins existed in South Australia – – formed in the foreland of the Delamerian Orogeny. Western Australian passive margin basins...
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