Search Results - "Bestmann, Michel"

Fossil intermediate-depth earthquakes in subducting slabs linked to differential stress release by Scambelluri, Marco, Pennacchioni, Giorgio, Gilio, Mattia, Bestmann, Michel, Plümper, Oliver, Nestola, Fabrizio

“…The cause of intermediate-depth (50–300 km) seismicity in subduction zones is uncertain. It is typically attributed either to rock embrittlement associated…”
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Crystallographic control and texture inheritance during mylonitization of coarse grained quartz veins by Ceccato, Alberto, Pennacchioni, Giorgio, Menegon, Luca, Bestmann, Michel

“…Quartz veins within Rieserferner pluton underwent deformation during post-magmatic cooling at temperature around 450°C. Different crystallographic orientations…”
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Neoproterozoic geodynamics in NW India - evidence from Erinpura granites in the South Delhi Fold Belt by De Wall, Helga, Regelous, Anette, Schulz, Bernhard, Hahn, Gregor, Bestmann, Michel, Sharma, Kamal Kant

“…Erinpura Granites form the basement for the Neoproterozoic Malani Igneous Suite in NW India. Based on this study, the Erinpura granites can be divided into…”
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Increasing control over biomineralization in conodont evolution by Shirley, Bryan, Leonhard, Isabella, Murdock, Duncan J. E., Repetski, John, Świś, Przemysław, Bestmann, Michel, Trimby, Pat, Ohl, Markus, Plümper, Oliver, King, Helen E., Jarochowska, Emilia

“…Vertebrates use the phosphate mineral apatite in their skeletons, which allowed them to develop tissues such as enamel, characterized by an outstanding…”
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Intragranular dynamic recrystallization in naturally deformed calcite marble: diffusion accommodated grain boundary sliding as a result of subgrain rotation recrystallization by Bestmann, Michel, Prior, David J

“…Intragranular microshear zones within a greenschist facies calcite marble were studied to try to constrain better the processes of dynamic recrystallization as…”
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Distinguishing Biologically Controlled Calcareous Biomineralization in Fossil Organisms Using Electron Backscatter Diffraction (EBSD) by Päßler, Jan-Filip, Jarochowska, Emilia, Bestmann, Michel, Munnecke, Axel

“…Although carbonate-precipitating cyanobacteria are ubiquitous in aquatic ecosystems today, the criteria used to identify them in the geological record are…”
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Dynamic recrystallization of garnet and related diffusion processes by Bestmann, Michel, Habler, Gerlinde, Heidelbach, Florian, Thöni, Martin

“…Electron backscatter diffraction and compositional data of Permian metapegmatite garnet from the Koralpe basement (Eastern Alps, Austria) show the evolution of…”
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Ti distribution in quartz across a heterogeneous shear zone within a granodiorite: The effect of deformation mechanism and strain on Ti resetting by Bestmann, Michel, Pennacchioni, Giorgio

“…The study of a heterogeneous ductile shear zone that developed at ~500°C and 0.2GPa during post-magmatic cooling of a granodiorite has allowed the effect of…”
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Wear, tear and systematic repair: testing models of growth dynamics in conodonts with high-resolution imaging by Shirley, Bryan, Grohganz, Madleen, Bestmann, Michel, Jarochowska, Emilia

“…Conodont elements are the earliest mineralized vertebrate dental tools and the only ones capable of extensive repair. Two models of conodont growth, as well as…”
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Exploring the Ar isotope record of an early Miocene pseudotachylyte in an early Oligocene intrusion (Rieserferner pluton, eastern Alps) by Di Vincenzo, Gianfranco, Pennacchioni, Giorgio, Bestmann, Michel

“…We investigate the influence of unmelted clasts on the 40Ar39Ar age record of a Miocene pseudotachylyte within the early Oligocene Riesenferner pluton (eastern…”
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The cono-dos and cono-dont’s of phosphatic microfossil preparation and microanalysis by Shirley, Bryan, Bestmann, Michel, Jarochowska, Emilia

“…•Sectional images of fossils reveal ultrastructural information about their skeletal tissues.•New preparation workflows highlight issues during process…”
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Tonian evolution of an active continental margin - a model for Neoproterozoic NW India-SE Pakistan–E Oman linkage by de Wall, Helga, Regelous, Anette, Tomaschek, Frank, Bestmann, Michel, Hahn, Gregor, Sharma, Kamal Kant

“…[Display omitted] •Transition from stable (S-type granites, - εNd) into stretched continental margin(I-type granitoids, + εNd)•Linkage of NW India, Seychelles,…”
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Wear, tear and systematic repair: testing models of growth dynamics in conodonts with high-resolution imaging by Shirley, Bryan, Grohganz, Madleen, Bestmann, Michel, Jarochowska, Emilia

“…Conodont elements are the earliest mineralized vertebrate dental tools and the only ones capable of extensive repair. Two models of conodont growth, aswell as…”
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Subsurface granites in the Franconian Basin as the source of enhanced geothermal gradients: a key study from gravity and thermal modeling of the Bayreuth Granite by de Wall, Helga, Schaarschmidt, Anna, Kämmlein, Marion, Gabriel, Gerald, Bestmann, Michel, Scharfenberg, Lars

“…The Franconian Basin in NE Bavaria is a region of gravity low between the Bohemian Massif in the east and the Kraichgau Terrane in the west. Borehole…”
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On-fault earthquake energy density partitioning from shocked garnet in an exhumed seismic midcrustal fault by Toffol, Giovanni, Pennacchioni, Giorgio, Menegon, Luca, Wallis, David, Faccenda, Manuele, Camacho, Alfredo, Bestmann, Michel

“…The energy released during an earthquake is mostly dissipated in the fault zone and subordinately as radiated seismic waves. The on-fault energy budget is…”
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Upper crustal fluids in a large fault system: microstructural, trace element and oxygen isotope study on multi-phase vein quartz at the Bavarian Pfahl, SE Germany by Schaarschmidt, Anna, Haase, Karsten M., de Wall, Helga, Bestmann, Michel, Krumm, Stefan, Regelous, Marcel

“…Fault systems are zones of crustal weakness and are used as pathways for ascending hydrothermal fluids. One impressive example is the more than 150 km long…”
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Instantaneous healing of micro-fractures during coseismic slip: Evidence from microstructure and Ti in quartz geochemistry within an exhumed pseudotachylyte-bearing fault in tonalite by Bestmann, Michel, Pennacchioni, Giorgio, Mostefaoui, Smail, Göken, Mathias, de Wall, Helga

“…Exhumed faults within the tonalitic Adamello pluton (Southern Alps) were seismic at depth as indicated by the presence of pseudotachylytes (solidified…”
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Influence of Deformation and Fluids on Ti Exchange in Natural Quartz by Bestmann, Michel, Pennacchioni, Giorgio, Grasemann, Bernhard, Huet, Benjamin, Jones, Michael W. M., Kewish, Cameron M.

“…Using a combination of microstructural, spectroscopic, and geochemical analyses, we investigate how subgrain rotation recrystallization and fluid migration…”
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Laminated carbonate deposits in Roman aqueducts: Origin, processes and implications by Sürmelihindi, Gül, Passchier, Cees W., Spötl, Christoph, Kessener, Paul, Bestmann, Michel, Jacob, Dorrit E., Baykan, Orhan N.

“…Carbonate deposits in Roman aqueducts of Patara and Aspendos (southern Turkey) were studied to analyse the nature of their regular layering. Optical microscopy…”
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Evolution of a calcite marble shear zone complex on Thassos Island, Greece: microstructural and textural fabrics and their kinematic significance by Bestmann, Michel, Kunze, Karsten, Matthews, Alan

“…The deformation history of a monophase calcite marble shear zone complex on Thassos Island, Northern Greece, is reconstructed by detailed geometric studies of…”
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