The solid-state flow of polymineralic rocks

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August undefined, 2024

WebPeridotites are rocks from the mantle that consist of four main phases; olivine, clinopyroxene, orthopyroxene and an aluminous phase (plagioclase, spinel and/or garnet). The aluminous phase that is present depends of the pressures and temperatures these rock are derived from, as they have different stability fields for these phases. WebMay 1, 1993 · The study allows one to calculate, to the first approximation, the flow laws of a large number of rocks at geologic conditions based on the experimentally determined flow laws of a relatively small number of monomineralic aggregates.

The Solid-State Flow of Polymineralic Rocks - ResearchGate

WebNov 6, 2024 · Data are given on tribological properties of solid-lubricating coatings reinforced by various fabrics for tribosystems with elastomer-based components. Operating conditions are shown to influence... WebFeb 28, 1994 · Relatively few attempts have been made so far to apply these theories to the flow properties of polymineralic rocks in the Earth's crust and mantle [6]. It is common practice to use the flow law of a dominant mineral to estimate the flow properties of polymineralic rocks: "wet quartz" for crustal rocks and "wet olivine" for mantle rocks. rice university vice president innovation

Deformation of Polymineralic rocks Structure Database

WebOct 1, 2001 · The widely cited Sibson-Scholz conceptual fault zone model suggests that seismically active, upper crustal brittle faults pass downward across a predominantly thermally controlled transition at 10–15 km depth into ductile shear zones in which deformation occurs by aseimic viscous creep. WebA concept of strain energy partitioning in polyphase aggregates allows the expression of the bulk strength of a rock in terms of its strain rate, temperature, and the volume proportions … WebJun 10, 1990 · Polymineralic rocks display three end-member types of mechanical and microstructural behavior: (1) strong minerals form a load-bearing framework that contains … redis chakan hash

Flow in rocks modelled as multiphase continua: application to ...

WebFeb 28, 1994 · The flow behavior of polymineralic rocks has been explored recently [9-11]. However, very little is known about how stresses in one grain affect neighboring grains of different minerals. Recrystallization may occur during deformation ("dynamic recrystallization") or after ("annealing re- crystallization"). WebMar 12, 2024 · The Solid-State Flow of Polymineralic Rocks Article Full-text available Jun 1990 Mark R. Handy View Show abstract A generalized mixture rule for estimating the viscosity of solid-liquid... redis change feedWebThe rheology of polymineralic rocks is complex as the various minerals within the rock have different deformational behaviors (e.g. deformation mechanisms, activation energies). … redis change log

"WebApr 12, 2024 · In addition, metamorphic reactions and solid-state exsolution may also lead to grain size reduction during syn-metamorphic ... The polymineralic layers mainly consist of plagioclase (50 vol%), K-feldspar (20 ... Grain growth during the flow of rocks in the middle to lower crust was inhibited by phase mixing from cavitation-sealing and geometric ... " - The solid-state flow of polymineralic rocks

The solid-state flow of polymineralic rocks

Some typical microstructures in deformed rocks - ScienceDirect

WebThe Solid-State Flow of Polymineralic Rocks. Journal of Geophysical Research, 95 (B6), 8647-8661. Rosenberg, C.L. & Handy, M.R. 2005. Experimental deformation of partially melted granite revisted: implications for the continental crust. J. Metamorphic Geol, 23, 19-28. Shimada, M. 1992. WebJun 10, 1990 · Polymineralic rocks display three end-member types of mechanical and microstructural behavior: (1) strong minerals form a load-bearing framework that contains …

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WebFeb 10, 1992 · FLOW IN ROCKS MODELLED AS MULTIPHASE CONTINUA : APPLICATION TO POLYMINERALIC ROCKS Y. Takeda Geology 1998 39 Flow laws for rocks containing two … WebJan 1, 1991 · It has become common practice to use laboratory-determined, low-temperature frictional sliding data, together with power-law equations for ‘steady-state’ creep of rocks at high temperatures, to construct inferred profiles of rock strength and mode of failure with depth in the lithosphere.

WebMar 18, 2024 · Polymineralic rocks are rocks formed by more than one type of rock forming minerals. The rheology of polymineralic rocks is complex as the various minerals within the rock have different deformational … WebNov 1, 1998 · In this paper I present a simple approach for deter- mining the flow properties of a composite rock from the properties of the constituent phases and the rock …

WebJun 1, 1990 · The solid-state flow of polymineralic rocks. Handy, Mark R. Polymineralic rocks display three end-member types of mechanical and microstructural behavior: (1) … WebDec 1, 2012 · The solid-state flow of polymineralic rocks. Journal of Geophysical Research. v95. 8647-8661. Handy, 1994. Flow laws for rocks containing two non-linear viscous phases; a phenomenological approach. Journal of Structural …

WebSep 27, 2004 · In order to study the potential effect of syndeformational solid–solid reactions on the strength and the deformation mechanisms of polyphase rocks, we have performed shear deformation experiments on plagioclase–olivine aggregates both within and outside their stability fields.

WebFeb 10, 1992 · Additionally, experiments as well as theoretical considerations show that the rock strength of polymineralic rocks is controlled by the weakest phase, even when it has … rice university vice president of enrollmentWebThe solid-state flow of polymineralic rocks: Journal: Journal of Geophysical Research: Authors: Handy, Mark R. Author: Year: 1990 Volume: 95: Page(s) 8647: Publisher: … redis change streamWebSep 3, 2009 · The Solid-State Flow of Polymineralic Rocks. Journal of Geophysical Research, 95 (B6): 8647–8661 Article Google Scholar Liou, J. G., Zhang, R. Y., Jahn, B. M., 1997. Petrology, Geochemistry and Isotope Data on an Ultrahigh-Pressure Jadeite Quartzite from Shuanghe, Dabie Mountains, East-Central China. Lithos, 41 (1–3): 59–78 Article … redis change databaseWebMR Handy (1990) The solid-state flow of polymineralic rocks. J Geophys Res Solid 95 8647–8661 Google Scholar TM Harrison I Duncan I MCDougall (1985) Diffusion of Ar-40 in biotite – temperature, pressure and compositional effects. Geochim Cosmochim Acta 49 2461–2468 10.1016/0016-7037 (85)90246-7 Article Google Scholar rice university videoWebThe solid-state flow of polymineralic rocks. Journal of Geophysical Research 95: doi: 10.1029/90JB00243. issn: 0148-0227. rice university village apartments televisionWebJan 1, 2009 · Based on the microstructural approach and matrix-clast relationships, the method applied here may be useful for appraising the connection between deformation … redis change passwordWebFeb 28, 1994 · Major processes in deforming rocks include intracrystalline slip, recovery, recrystallization, grain boundary sliding, brittle fracture, pressure solution, and growth of new minerals. Intracrystalline slip and recovery are generally similar to those in metals. Dynamic and annealing recrystallization both occur. redis certified developer