DK
Member Since 1973
David L. Kohlstedt
Distinguished Professor and Gibson Chair of Earth and Planetary Sciences, University of Minnesota
AGU Research
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Type‐B Crystallographic Preferred Orientation in Olivine Induced by Dynamic Dehydration of Antigorite in Forearc Regions
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
11 march 2024
Wenlong Liu, Yi Cao, Jianfeng Li, Mao-shuang Song,...
The crystallographic preferred orientation (CPO) of olivine, specifically the type‐B characterized by c‐axes aligned parallel to lineat...
Effects of Stress‐Driven Melt Segregation on Melt Orientation, Melt Connectivity and Anisotropic Permeability
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
04 march 2024
James A. Bader, Wenlu Zhu, Laurent Montesi, Chao Q...
Stress‐driven melt segregation may have important geochemical and geophysical effects but remains a poorly understood process. Few constraint...
Phase Transformation Assisted Shear Faulting at High Pressure and Temperature in Fe-rich Olivine: Implications for Deep-Focus Earthquakes
RUPTURE AND DEFORMATION PROCESSES, FROM SLOW TO FAST AND FROM MICRO TO MACRO I ORAL
mineral and rock physics | 14 december 2023
Timothy Officer, Man Xu, Feng Shi, Patrick Cordier...
Deep-focus earthquakes (DFEQ; ~300-700 km depth) remain puzzling since ordinary brittle failure is prohibited under the high pressure/high temperature...
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Rheological weakening of olivine + orthopyroxene aggregates due to phase mixing
FROM GRAIN TO EARTH: UNDERSTANDING PLATE TECTONICS THROUGH ROCK MICROPHYSICS AND RECRYSTALLIZATION TO MANTLE-SCALE ANALYSES I ORAL
mineral and rock physics | 12 december 2023
Miki Tasaka, Mark E. Zimmerman, David L. Kohlstedt
To investigate the microstructural evolution and the resulting changes in rheological behavior in two-phase systems, we conducted high-strain torsion ...
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Melt Preferred Orientation and its Influence on Seismic Anisotropy in the Earth’s Upper Mantle
FROM GRAIN TO EARTH: UNDERSTANDING PLATE TECTONICS THROUGH ROCK MICROPHYSICS AND RECRYSTALLIZATION TO MANTLE-SCALE ANALYSES I ORAL
mineral and rock physics | 12 december 2023
Cassandra Seltzer, Matej Pec, Mark E. Zimmerman, D...
As the Earths partially molten upper mantle deforms, its constituent materials align on the microscale to form melt preferred orientations (MPOs) and ...
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Strain-dependent Melt Orientation, Melt Connectivity, and Permeability in Partially Molten Olivine-Basalt Aggregates
FROM A SINGLE CRYSTAL ON UP: IN HONOR OF DAVID KOHLSTEDT'S CAREER I ORAL
mineral and rock physics | 12 december 2023
James A. Bader, Adaire Nehring, Wenlu Zhu, Laurent...
When partially molten rocks are sheared experimentally, the melt pockets they contain develop a preferred orientation at small strains and form melt-r...
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Melt Network Reorientation and Crystallographic Preferred Orientation Development in Sheared Partially Molten Rocks
GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS
20 september 2023
Cassandra Seltzer, Matej Pec, Mark E. Zimmerman, D...
We investigated the co‐evolution of melt, shape, and crystallographic preferred orientations (MPOs, SPOs, and CPOs) in experimentally deforme...
The Effect of Secondary‐Phase Fraction on the Deformation of Olivine + Ferropericlase Aggregates: 2. Mechanical Behavior
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
17 april 2023
Harison Wiesman, Mark E. Zimmerman, David L. Kohls...
To study the mechanical behavior of polymineralic rocks, we performed deformation experiments on two‐phase aggregates of olivine (Ol) +&...