Results 11 to 20 of about 211,728 (301)
Geosciences, 2020 Late-Variscan granitoid rocks of trondhjemitic and granitic composition, intruded in migmatitic paragneisses in the north-eastern Peloritani Mountains (southern Italy) at ~310 Ma and ~300 Ma, respectively, exhibit a range of deformation microstructures ...
Eugenio Fazio +3 more
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The role of shearing in the Proterozoic development of the Åland archipelago, S.W. Finland [PDF]
Bulletin of the Geological Society of Finland, 1987 tion of a regional tectonochronology. Folds with E—W axial traces and associated shear zones which are characteristic of the southern Finland migmatite belt (1800 Ma) were refolded during a late phase of NW—SE shearing.
N.P. Branigan
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Universal and wide shear zones in granular bulk flow [PDF]
, 2004 We present experiments on slow granular flows in a modified (split-bottomed) Couette geometry in which wide and tunable shear zones are created away from the sidewalls.
Denis Fenistein +10 more
core +3 more sources
Core Precession and Global Modes in Granular Bulk Flow [PDF]
, 2005 A transition from local to global shear zones is reported for granular flows in a modified Couette cell. The experimental geometry is a slowly rotating drum which has a stationary disc of radius R_s fixed at its bottom.
Denis Fenistein +3 more
core +3 more sources
Microstructures associated with the Sottunga-Jurmo shear zone and their implications for the 1.83-1.79 Ga tectonic development of SW Finland [PDF]
Bulletin of the Geological Society of Finland, 2010 This petrographic study of rock samples from the area of a large-scale shear zone, the Sottung-Jurmo shear zone, in SW Finland, illuminates the thermal development of and strain distribution within the rocks during the last development stages of the ...
T. Torvela, C. Ehlers
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Shear zones in granular media: 3D Contact Dynamics simulation [PDF]
, 2007 Shear zone formation is investigated in slow 3D shear flows. We simulate the linear version of the split-bottom shear cell. It is shown that the same type of wide shear zones is achieved in the presence as well as in the absence of gravity.
Ries, Alexander +2 more
core +1 more source
Effect of Spatial Variations in Floodplain Vegetation on Bed Shear Stress Distribution [PDF]
长江科学院院报[Objective] This study aims to investigate the effects of different vegetation arrangements (parallel and staggered) in the junction zone between channel and floodplain in urban rivers on the spatial distribution of bed shear stress, and to reveal how ...
REN Chun-ping, YANG Fan, ZHANG Yuan-yuan, WANG Hong-fei
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BSGF - Earth Sciences Bulletin, 2020 Shear zones of the Paleoproterozoic Eburnean accretionary Orogen (West African craton) are investigated by means of large-scale structural mapping. Regional scale (10-100 km) mapping was based on the aeromagnetic survey of Burkina Faso and craton-scale ...
Chardon Dominique +2 more
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Structural control on gold mineralization in the Satulinmäki and Riukka prospects, Häme Schist Belt, southern Finland [PDF]
Bulletin of the Geological Society of Finland, 2007 The Satulinmäki and Riukka prospects located in the Häme Schist Belt in southern Finland are dominated by mafic and intermediate to felsic metavolcanic rocks of the Forssa Group formed in a continental arc setting.
K. Saalmann
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Timing of syn-orogenic, high-grade transtensional shear zone formation in the West Uusimaa Complex, Finland [PDF]
Bulletin of the Geological Society of Finland, 2022 We present zircon and titanite U-Pb ages from granulite-facies transtensional shear zones and a greenschist facies strike-slip shear zone in the Karkkila-Vihti area, West Uusimaa. The zircon rim and titanite ages of c.
Taija Torvela, Matti Kurhila
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