Results 191 to 200 of about 6,364 (209)

Neoproterozoic Continental-Scale Transpression Megazone in Eastern Brazil

1998
The Transatlantic megashear system (TATLmss) is a northeast-trending continental-scale transpression megazone which exhibits coeval Neoproterozoic structural and tectonic evolution. On the Brazilian platform it is 900 km wide and 3600 km long and extends northeastward into the African continent and southwestward into Argentina, Uruguay and Paraguay.
I. Endo, R. Machado
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Transpressive Acadian deformation across the Central Wales lineament

Journal of Structural Geology, 1990
Abstract The structure is described of a 12 km transect across the Central Wales ‘Syncline’ of the Welsh Caledonides. The fold is a complex SE-verging structure with a strike-faulted core, involving only Llandovery Series (Lower Silurian) turbidites at outcrop.
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Exhumation during oblique transpression: The Feiran–Solaf region, Egypt

Journal of Metamorphic Geology, 2009
AbstractThe Feiran–Solaf metamorphic complex of Sinai, Egypt, is one of the highest grade metamorphic complexes of a series of basement domes that crop out throughout the Arabian‐Nubian Shield. In the Eastern Desert of Egypt these basement domes have been interpreted as metamorphic core complexes exhumed in extensional settings.
T. S. ABU‐ALAM, K. STÜWE
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Strain and vorticity patterns in ideally ductile transpression zones

Journal of Structural Geology, 1994
The prevalent model for ductile shear zones assumes that they develop by progressive simple shearing, resulting in a monoclinic fabric in which the vorticity vector is parallel to the shear zone and perpendicular to the lineation. But some ductile shear zones exhibit an amount of coaxial flattening, or a fabric pattern which appear to be incompatible ...
Pierre-Yves F. Robin, Alexander R. Cruden   +1 more
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The Alps — a transpressive pile of peels

1992
One of the striking features of recent reflection seismograph traverses in the Alps is the strong reflection band of the ‘Penninic front’. It cuts discordantly through the complex geometry of the Pennine nappes and ties laterally into the Miocene Simplon line.
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Variations in the kinematics of deformation along the Zagros inclined transpression zone, Iran: Implications for defining a curved inclined transpression zone

Journal of Structural Geology, 2013
Abstract The combination of inclined collision and plate boundary shape can control the nature of deformation and the sense of shear along a transpression zone. The present study investigated the effects of a boundary zone with curvilinear shape along a transpression zone on the kinematics of deformation.
Khalil Sarkarinejad, Abdolreza Partabian, Ali Faghih   +2 more
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Archean regional transpression and paleomagnetism in northwestern Ontario, Canada

Tectonophysics, 1993
Abstract The Archean metamorphic rocks of the Superior province of the Canadian Shield occur in lithologically defined belts or subprovinces. The tectonically more stable interiors of belts possess consistent primary components of magnetic remanence. In the case of the Quetico belt, these stable directions are tightly grouped about 005°/55° with some
G.J. Borradaile, T. Werner, J.F. Dehls, R.N. Spark   +3 more
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Thermal evolution and exhumation in obliquely convergent (transpressive) orogens

Tectonophysics, 1997
Most P-T-t path models to date have considered a linear erosion rate for exhumation from burial depth, related to isostatic readjustment of crustal thickness. A few have discussed extension-enhanced exhumation. Erosional exhumation can only restore lower crustal rocks from the thickened mountain root to their previous original depth in the pre ...
Alan Bruce Thompson, Karel Schulmann, Josef Jezek   +2 more
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Physical experiments of vertical transpression with localized nonvertical extrusion

Journal of Structural Geology, 2004
Abstract Previously proposed models of vertical-walled transpression implicitly assume that material extrudes upwards during deformation. This assumption is not necessarily valid at all scales given that: (a) in areas of diverse lithologies, local zones of relatively rigid materials may cause extruding material to deflect around those zones, and (b ...
Dyanna M Czeck, Peter J Hudleston
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Finite strains in transpression zones with no boundary slip

Journal of Structural Geology, 1997
Abstract A mathematical model describing finite strains has been developed for transpression zones where no slip is allowed in any direction at the zone boundaries. This has been adapted to model transpression zones where the boundaries are inclined. The model can also be used to describe finite-strain patterns where material is incorporated into the
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