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Showing 1 to 8 of 8 for “"Alleghanian Orogeny"”.
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Origin, Architecture, and Thermal State of the Lackawanna Synclinorium, Pennsylvania: Implications for Tectonic Evolution of the Central Appalachians
… rotated ∼45° clockwise during the Alleghanian orogeny. Heat-flow calculations suggest that the migration of hot (∼270°C) brines could have induced anthracitization at shallow depths (≤5 km) in the synclinorium; thus, deep burial (6--9 km) by post-Pennsylvanian strata was …
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Across- and along-strike structural and geochronological variations of the Nashoba-Putnam and Avalon terranes, eastern Massachusetts, Connecticut, and Rhode Island, southeastern New England Appalachians
… These orogenies are the mid-Paleozoic Acadian orogeny and the late Paleozoic Alleghanian orogeny. The northeast-trending Nashoba-Putnam terrane, located in eastern Massachusetts and Connecticut is part of the Gondwanan-derived microcontinent Ganderia. It is in fault contact with greenschist …
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Supercontinental Inheritance and its Influence on Supercontinental Breakup: The Central Atlantic Magmatic Province and the Breakup of Pangea
… Different collisional styles during the Alleghanian orogeny in the North and South may have led to the diachroneity of the rifting of Pangea. Furthermore, due to a low angle of subduction, the Rheic Plate may have underplated the lithosphere then delaminated, triggering both the breakup …
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Thermal and Diagenetic Evolution of Carboniferous Sandstones, Central Appalachian Basin
… during thrust loading associated with the Alleghanian orogeny.
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Stratigraphy and Tectonics: Multi-Disciplinary Evaluation of Tectonic Models For the Eastern and Southern Continental Margins of North America
… Acadian phase. Subsidence rates during the Alleghanian phase were much slower than the preceding Taconic and Acadian phase. The decrease of subsidence rates from the oldest to the youngest orogenic event may reflect that the Appalachian lithosphere obtain its strength over time. Subsidence …
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Aspects of Deformation and Strain in the Appalachian Fold -Thrust Belt (New York) and the Shear Zones of the Sveconorwegian Orogen (Norway)
… changes in the structural architecture of the Alleghanian (Late Paleozoic) northern Appalachian foreland fold-thrust belt, near the town of Rosendale in southeastern New York State. Results suggest that along-strike thinning (from south to north) of rigid units within the Silurian-Devonian …
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An Integrated Geophysical Study of the Central Appalachians of Western Virginia and Eastern West Virginia
… formed in response to stresses during the Alleghanian Orogeny. A large thrust sheet of similar carbonate rocks was interpreted beneath the Nittany Anticlinorium in West Virginia. To the south in Virginia, this thrust sheet is replaced by imbrication of the carbonate package. The change in …
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Insights Into the Stratigraphic Evolution of the Early Pennsylvanian Pocahontas Basin, Virginia
… both the Late Paleozoic Ice Age and onset of the Alleghanian Orogeny. The tropical depositional landscape produced stacked deposits of braided-fluvial channels, broad alluvial plains, tidally-influenced estuaries and small deltas. Trends in facies associations allowed development of a …