#olivine — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #olivine, aggregated by home.social.
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Andrew Frederiksen (U. Manitoba) gave us a very clear explanation of a better way to analyze shear-wave splitting as a way to probe the fabric (heterogeneities) of the upper mantle under continents.
The red and orange contours of large split times in British Columbia represent aligned olivine from present-day horizontal mantle flow. Splitting in Alberta represents fabrics formed and preserved from the Precambrian.
#UManitoba #McGillUniversity #Seismology #Lithosphere #Mantle #Olivine
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Wednesday, early afternoon posters at #AGU23
MR31B-0084 Effects of melt-rock interactions on deformation fabrics and rock physical properties in the shallow mantle lithosphere
James Kirkpatrick presenting, but this is the the M.Sc. work of Arvid Gonzalez (now core-logging in n. QC). Other authors are myself and Caroline Seyler (U. Minnesota).Arvid found that infiltrating mafic melt reduces the preserved strain in mantle olivine.
#McGillUniversity #Mantle #EBSD #Xenolith #Lithosphere #Olivine