Authored by Pamela Speciale. I just returned from the Rock Deformation Lab at Brown University, where I’ve been searching for evidence of how microstructure development (i.e., grain size, grain boundary morphology) contributes to strain localization, which is essential for the maintenance of plate tectonics. We can learn a lot about strain localization by observing rock formations in the field, but
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The American Geophysical Union Fall meeting starts on Monday, and we’re excited to share our latest research with you. Come see our talks and posters! Rachel Bernard Thursday, 13 Dec @ 8:15 Relationships between olivine LPO and deformation conditions in naturally deformed rocks and implications for mantle seismic anisotropy Thursday, 13 Dec @ 9:00 (coauthor, presented by Nick Dygert) Xenolith
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In case you didn’t know… Syros represents a fossil subduction shear zone. Rocks were brought to eclogite facies conditions in the Eocene and exhumed through the Miocene, partially along the plate interface and partially by crustal scale low-angle normal faults of the North and West Cycladic Detachment Systems. We go there to study the structural and rheological evolution of several different
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The first round of data has now been collected from our Mojave Broadband Seismic Experiment, funded by the Southern California Earthquake Center and the Jackson School of Geosciences, in collaboration with colleagues Thorsten Becker and Rob Porritt (U. Texas Austin), and Vera Schulte-Pelkam (U. Colorado Boulder). Our primary goals with this project are to understand 1) the localisation of strain
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That pretty much sums up recent field work along the Kenai Peninsula in southern Alaska, USA, where I spent 16 days in July with UT Austin colleague Mark Helper and former UT M.S. student Kory Kirchner. Our aim was a reconnaissance study of the Chugach accretionary complex, both along Turnagain Arm near Anchorage and along the southern Kenai Peninsula across
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