Journal Title
Title of Journal: Int J Earth Sci Geol Rundsch
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Abbravation: International Journal of Earth Sciences
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Publisher
Springer Berlin Heidelberg
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Authors: Kieran F Mulchrone Soumyajit Mukherjee
Publish Date: 2015/06/05
Volume: 105, Issue: 3, Pages: 1015-1020
Abstract
Extrusion by Poiseuille flow and simple shear of hot lower crust has been deciphered from large hot orogens and partialslip boundary condition has been encountered in analogue models Shear heat and velocity profiles are deduced from a simplified form of Navier–Stokes equation for simple shear together with extrusive Poiseuille flow and slip boundary condition for Newtonian viscous rheology A higher velocity at the upper boundary of the shear zone promotes higher slip velocity at the lower boundary The other parameters that affect the slip are viscosity and thickness of the shear zone and the resultant pressure gradient that drives extrusion In the partialslip case depending on flow parameters resultant pressure gradient density and viscosity and thickness of the shear zone the velocity profiles can curve and indicate opposite shear senses The corresponding shear heat profiles can indicate temperature maximum inside shear zones near either boundaries of the shear zone or equidistant from themSM thanks Department of Science and Technology New Delhi Young Scientist Project grant number SR/FTP/ES/117/2009 for support Christoph Schrank Queensland University of Technology Brisbane and Gretchen Baier Dow Chemical Company are thanked for reviewing Editorial handling by Karel Schulman Université de Strasbourg WolfChristian Dullo GeoMar and Monika Dullo is acknowledged
Keywords:
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- Cenozoic tectonic evolution in the Central Andes in northern Chile and west central Bolivia: implications for paleogeographic, magmatic and mountain building evolution
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- Stratigraphic and regional distribution of fractures in Barremian–Aptian carbonate rocks of Eastern Oman: outcrop data and their extrapolation to Interior Oman hydrocarbon reservoirs
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- Early Cretaceous highly positive ε Nd felsic volcanic rocks from the Hinggan Mountains, NE China: origin and implications for Phanerozoic crustal growth
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- Neoproterozoic to Lower Palaeozoic successions of the Tandilia System in Argentina: implication for the palaeotectonic framework of southwest Gondwana
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- Mineralogy and mineral chemistry of detrital heavy minerals from the Rhine River in Germany as evidence to their provenance, sedimentary and depositional history: focus on platinum-group minerals and remarks on cassiterite, columbite-group minerals and uraninite
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- Complete recycling of a magmatic arc: evidence from chemical and isotopic composition of Quaternary trench sediments in Chile (36°–40°S)
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