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Now showing items 7542-7561 of 42285
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(2005)Kaolinite was intercalated with n-hexylamine, n-octadecylamine and n-docosanamine, using methanol-kaolinite as the precursor. The intercalation compound with n-docosanamine presented the largest basal spacing for a kaolinite ...
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(2001)Diffusion-controlled growth rates of polycrystalline enstatite reaction rims between forsterite and quartz were determined at 1,000 °C and 1 GPa in presence of traces of water. Iron-free, pure synthetic forsterite with ...
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(2001)An absolute value for the interfacial free energy of high-angle grain boundaries in olivine/fo90s been derived from a microstructurally equilibrated coarse-grained natural peridotite. The three-dimensional configuration ...
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(2002)To learn more about the kinetics and mechanisms of coarsening and melt inclusion formation, we investigated the effects of melt content, viscosity, and topology on the microstructural evolution of partially molten and ...
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(2006)Grain growth rates in partially molten olivine aggregates were determined experimentally at a pressure of 1GPa. The aim of the experiments with fine-grained starting material (solution-gelation derived Fo90 olivine with a ...
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(1988)Evolution of grain size in synthetic marbles was traced from compaction of unconsolidated powder, through primary recrystallization and normal grain growth, to a size stabilized by second phases. To form the marbles, reagent ...
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(2005)Conspicuous grain scale deformation is observed in some ultra-high-pressure (UHP) metamorphic rocks of the Dora Maira Massif, Western Alps, although no significant strain is discernible on the mesoscopic scale. In a ...
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(PANGAEA, 2004-04-20)
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(PANGAEA, 2004-09-14)
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(PANGAEA, 2005-10-15)
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(2003)Geologic, experimental, and geodetic studies indicate that ductile shear zones do not deform in steady state. We present a theoretical model for an elastically loaded ductile shear zone deforming by combined dislocation ...
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(2001)It is widely believed that grain size reduction by dynamic recrystallization can lead to major rheological weakening and associated strain localization by bringing about a switch from grain size insensitive dislocation ...
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(1999)The Rb-87/Sr-86 and Sr-87/Sr-86 ratios of Laptev Sea sediments, of Arctic Ocean sediments and of suspended particulate matter (SPM) from Siberian rivers (Lena and Khatanga) form 'pseudo-isochrons' due to grain-size separation ...
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(2001)Scaling relationships for grain size-dependent viscosity convection are derived assuming that eutectoid-like transformations at 660 km depth produce very small grains and that the grain size is mainly controlled by a coupled ...
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(2006)Analysis of the grain-scale deformation mechanisms in folded rocks of the Dongargarh Supergroup, central India, reveals that deformation was accomplished by a combination of pressure solution, microfracturing and dislocation ...
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(2004)In order to examine grain-scale permeabilities in materials that are microstructurally similar to those of the lower crust and upper mantle, we produced porous synthetic quartzites with small fractions of an additional ...
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(1998)Permeability (k) was measured on synthetic, monomineralic aggregates of quartz and calcite, which serve as analogs for texturally equilibrated, fluid- and melt-bearing rocks such as those in the deep crust and mantle. ...
Now showing items 7542-7561 of 42285