Grain Growth in Olivine + Ferropericlase Rocks Deformed to High Strains (DATA)


Author Information:
Harison S. Wiesman
University of Minnesota, wiesm010@umn.edu, ORCID: 0000-0003-2606-980X

Mark E. Zimmerman
University of Minnesota, zimme030@umn.edu

David L. Kohlstedt
University of Minnesota, dlkohl@umn.edu, ORCID:0000-0002-6417-6465 

Recommended citation for the data repository: Wiesman, Harison S; Zimmerman, Marrk E; Kohlstedt, David L. (2023). Data for Grain Growth in Olivine + Ferropericlase Rocks Deformed to High Strains. Retrieved from the Data Repository for the University of Minnesota, https://doi.org/10.13020/ej3r-m032.

This file includes Metadata for 
Wiesman et al. (in prep)
Grain Growth in Olivine + Ferropericlase Rocks Deformed to High Strains.

Data collected at the University of Minnesota Rock and Mineral Physics lab between February 2020 and December 2020


Data repository includes:
ALLData.zip:
-3 .tif files, containing BSE images of 3 of the samples in this study: PT-1349 (f_Per = 20%), PT-1355(f_Per = 80%), and PT-1367(f_Per = 50%). Images were collected on a Hitachi SU8230 SEM at the University of Minnesota Characterization Facility. 2 of the images were used to determine dihedral angles in our samples.

-2 .csv tables, containing a list of dihedral angles measured between phase boundaries from the BSE images above. Dihedral angles were measured for 2 of the 4 samples in this study: PT-1349 with f_Per = 20% and PT-1367 with f_Per = 50%.


-33 .ctf files, one for each EBSD map. These maps contain data for 3 different annealing time for each of samples PT-1349 (f_Per = 20%), PT-1367 (f_Per = 50%), PT-1355 (f_Per = 80%), and PT-1420 (f_Per = 20%). Note that for some samples multiple EBSD maps were created. In these cases data from each map for that sample was combined to plot crystallographic preferred orientations and grain sizes, but only one map was plotted to demonstrate the representative microstructure in each sample. File names follow the sample numbers indicated in here and in Table 1 in ̉Grain Growth in Olivine + Ferropericlase Rocks Deformed to High Strains̉. EBSD data was collected using the AZtec software and the Oxford symmetry detector on a JEOL 6500 scanning electron microscope at the University of Minnesota Characterization Facility.


Each sample also has its own zipped folder.


Description of files:
-.tif files contain BSE images of samples PT-1349, PT-1355, and PT-1367 taken at 3000x magnification at an accelerating voltage of 15 kV.

-.CSV files contain dihedral angles for samples PT-1349 and PT-1367. Each file displays the angles measured in degrees between phase boundaries at Olivine-Periclase-Olivine (Ol-Per-Ol) and Periclase-Olivine-Periclase (Per-Ol-Per) triple junctions. In each file, angles at Ol-Per-Ol junctions are listed in the first column and angles at Per-Ol-Per boundaries are listed in the second column.

-.ctf files contain EBSD data, which can be read into MATLAB using the open source MTEX toolbox. Data has been processed to remove wild-spikes, zero-solutions, and systematic misindexing.



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