Search Results - "Walte, Nicolas"

Olivine aggregates reveal a complex collisional history of the main group pallasite parent body by Walte, Nicolas P., Golabek, Gregor J.

“…Olivine aggregates, bodies found in pallasites that consist of olivines with coherent grain boundaries and minor amounts of Fe‐Ni and troilite, likely…”
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Deformation mechanisms of antigorite serpentinite at subduction zone conditions determined from experimentally and naturally deformed rocks by Auzende, Anne-Line, Escartin, Javier, Walte, Nicolas P., Guillot, Stéphane, Hirth, Greg, Frost, Daniel J.

“…We performed deformation-DIA experiments on antigorite serpentinite at pressures of 1–3.5 GPa and temperatures of between 400 and 650 °C, bracketing the…”
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New cooling system for a three-axis multi-anvil press with 6-6 geometry by Howard, Christopher M., Walte, Nicolas P.

“…A new custom-designed cooling system is described that was developed for the SAPHiR three-axis multi-anvil press with MA6-6 anvil geometry at the FRM II…”
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In situ observation of crystal growth in a basalt melt and the development of crystal size distribution in igneous rocks by Ni, Huaiwei, Keppler, Hans, Walte, Nicolas, Schiavi, Federica, Chen, Yang, Masotta, Matteo, Li, Zhenjiang

“…To understand the solidification processes of natural magma and the texture evolution of igneous rocks, we have carried out in situ observation of the…”
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Weakening of calcium iridate during its transformation from perovskite to post-perovskite by Dobson, David P, Hunt, Simon A, Weidner, Donald J, Li, Li, Wang, Liping, Walte, Nicolas P, Brodholt, John P

“…The lowermost part of the Earth's mantle-the ∼200-km-thick D′′ layer-shows anomalous seismic properties, and is rheologically distinct from the rest of the…”
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Texture development and TEM analysis of deformed CaIrO3: Implications for the D″ layer at the core-mantle boundary by Walte, Nicolas, Heidelbach, Florian, Miyajima, Nobuyoshi, Frost, Daniel

“…CaIrO3 is an isostructural analog for MgSiO3 post‐perovskite (ppv), likely the dominant mineral phase in the D″ layer. At high temperature CaIrO3 undergoes a…”
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The petrology of two distinct granulite types in the Hengshan Mts, China, and tectonic implications by O'Brien, Patrick J., Walte, Nicolas, Li, Jianghai

“…The Archean to Proterozoic Hengshan Complex (North China Craton), comprises tonalitic and granodioritic gneisses with subordinate mafic lenses, pegmatites and…”
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Experimentally deformed lawsonite at high pressure and high temperature: Implication for low velocity layers in subduction zones by Iizuka-Oku, Riko, Soustelle, Vincent, Miyajima, Nobuyoshi, Walte, Nicolas P., Frost, Daniel J., Yagi, Takehiko

“…Lawsonite is considered to be one of the most likely hydrous minerals to explain the persistence of seismic low-velocity layers (LVLs) atop subducted slabs to…”
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Phase-field simulations of partial melts in geological materials by Wendler, Frank, Becker, Jens K., Nestler, Britta, Bons, Paul D., Walte, Nicolas P.

“…A diffuse interface description based on a multi-phase-field model for geological grain microstructures is introduced, especially useful in the treatment of…”
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Mantle fragmentation and incomplete core merging of colliding planetesimals as evidenced by pallasites by Walte, Nicolas P., Howard, Christopher M., Golabek, Gregor J.

“…Main group pallasites were likely formed by the collision of their parent body with a smaller impactor that caused a mixing of mantle and core material from…”
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Variation in bridgmanite grain size accounts for the mid-mantle viscosity jump by Fei, Hongzhan, Ballmer, Maxim D., Faul, Ulrich, Walte, Nicolas, Cao, Weiwei, Katsura, Tomoo

“…A viscosity jump of one to two orders of magnitude in the lower mantle of Earth at 800–1,200-km depth is inferred from geoid inversions and slab-subducting…”
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Structures, Phase Stability, Amorphization, and Decomposition of V 6 O 13 at High Pressures and Temperatures: Synthesis of Rutile-Related V 0.92 O 2 by Grzechnik, Andrzej, Hakala, B. Viliam, Kurig, Sophia, Walte, Nicolas, Tsujino, Noriyoshi, Kakizawa, Sho, Higo, Yuji, Zagorac, Dejan, Zagorac, Jelena, Dronskowski, Richard, Schön, J. Christian, Friese, Karen

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Two-stage formation of pallasites and the evolution of their parent bodies revealed by deformation experiments by Walte, Nicolas P., Solferino, Giulio F.D., Golabek, Gregor J., Silva Souza, Danielle, Bouvier, Audrey

“…Pallasites, stony-iron meteorites predominantly composed of olivine crystals and Fe-Ni metal, are samples of the interior of early solar system bodies and can…”
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Structures, Phase Stability, Amorphization, and Decomposition of V6O13 at High Pressures and Temperatures: Synthesis of Rutile-Related V0.92O2 by Grzechnik, Andrzej, Hakala, B. Viliam, Kurig, Sophia, Walte, Nicolas, Tsujino, Noriyoshi, Kakizawa, Sho, Higo, Yuji, Zagorac, Dejan, Zagorac, Jelena, Dronskowski, Richard, Schön, J. Christian, Friese, Karen

“…The stability of mixed-valence V6O13 at high pressures and high temperatures is studied experimentally in multianvil presses both ex situ and in situ using…”
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The effect of dynamic recrystallisation on the rheology and microstructures of partially molten rocks by Llorens, Maria-Gema, Gomez-Rivas, Enrique, Ganzhorn, Anne-Céline, Griera, Albert, Steinbach, Florian, Roessiger, Jens, Labrousse, Loic, Walte, Nicolas P., Weikusat, Ilka, Bons, Paul D.

“…The present study is based on a series of two-dimensional simple shear numerical simulations of two-phase non-linear viscous materials used to investigate the…”
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Burgers vector determination in deformed perovskite and post-perovskite of CaIrO 3 using thickness fringes in weak-beam dark-field images by Miyajima, Nobuyoshi, Walte, Nicolas

“…The thickness-fringe method [Ishida et al. , Philosophical Magazine 42 (1980) 453] for complete determination of the character of a dislocation Burgers vector…”
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Burgers vector determination in deformed perovskite and post-perovskite of CaIrO3 using thickness fringes in weak-beam dark-field images by Miyajima, Nobuyoshi, Walte, Nicolas

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Burgers vector determination in deformed perovskite and post-perovskite of CaIrO(3) using thickness fringes in weak-beam dark-field images by Miyajima, Nobuyoshi, Walte, Nicolas

“…The thickness-fringe method [Ishida et al., Philosophical Magazine 42 (1980) 453] for complete determination of the character of a dislocation Burgers vector…”
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Texture development and TEM analysis of deformed CaIrO 3 : Implications for the D″ layer at the core‐mantle boundary by Walte, Nicolas, Heidelbach, Florian, Miyajima, Nobuyoshi, Frost, Daniel

“…CaIrO 3 is an isostructural analog for MgSiO 3 post‐perovskite (ppv), likely the dominant mineral phase in the D″ layer. At high temperature CaIrO 3 undergoes…”
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Deformation of melt-bearing systems—insight from in situ grain-scale analogue experiments by Walte, Nicolas P., Bons, Paul D., Passchier, Cees W.

“…The deformation behaviour of partially molten rocks was investigated using in situ analogue experiments with norcamphor+ethanol, as well as partially molten…”
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