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electron backscatter diffraction data

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Journal Article
Published: 01 September 2017
American Mineralogist (2017) 102 (9): 1843–1855.
...Katharina Marquardt; Marc De Graef; Saransh Singh; Hauke Marquardt; Anja Rosenthal; Sanae Koizuimi Electron backscatter diffraction (EBSD) data yield plentiful information on microstructure and texture of natural as well as experimentally produced mineral and rock samples. For instance...
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Quartz electron backscatter diffraction data from mylonite samples. (A) Lower hemisphere pole figures of quartz c-axes (0001) and a-axes (11–20) from samples 5-21-SC34, 19-7-14, 5-21-SC29, and 20-9-SC34. Data are presented in the X:Z reference frame with the NE end of the X-axis (lineation) on the right; m.u.d.—multiples of uniform distribution contour interval; n—number of grains analyzed. (B) Inverse pole figures showing the contoured distribution of misorientation axes with respect to crystallographic axes in m.u.d. Top figure is a reference modified from Neumann (2000) correlating misorientation axes with crystallographic slip systems. These data indicate a dominance of basal &lt;a&gt; slip ([c] &lt;c&gt;), with a minor component of prism &lt;a&gt; slip ({m}&lt;a&gt;) in 5-21-SC34c and 19-7-14.
Published: 25 March 2025
Figure 11. Quartz electron backscatter diffraction data from mylonite samples. (A) Lower hemisphere pole figures of quartz c-axes (0001) and a-axes (11–20) from samples 5-21-SC34, 19-7-14, 5-21-SC29, and 20-9-SC34. Data are presented in the X:Z reference frame with the NE end of the X-axis
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Published: 17 November 2022
TABLE 2. ELECTRON BACKSCATTER DIFFRACTION DATA (EBSD)
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Electron backscatter diffraction data from biotite grain EB5 (Sample T01–23). (a) Typical EBSP from the grain. Although the bands can be seen they are relatively faint due to the difficulty in polishing biotite. (b) The indexed orientation derived from comparison of bands identified in a with a theoretical diffraction pattern for biotite. (c) Orientation map created by applying different colors to each of the 3 Euler orientations required to define the orientation of the lattice at each pixel. The variation in color indicates an apparent change in orientation associated with a systematic misindexing due to the pseudo-hexagonal symmetry of biotite. (d) Pole figures for {100}, {010}, and {001} for the grain shown in c. Colors represent the orientations shown in c. The misindexing is shown by the presence of three clusters in the {100} and {010} data. Only {001} shows a single orientation indicating that the misindexing represents an apparent 60° rotation around the {001} pole. The dispersion of data for most of the poles by 15° around small circles are consistent with deformation by dislocation creep. The absence of dispersion around the centrally located {010} pole, combined with the knowledge of biotite deformation mechanisms allows this pole to be identified as the real orientation of the grain despite the systematic misindexing problem (see text for details).
Published: 01 February 2014
Figure 4 Electron backscatter diffraction data from biotite grain EB5 (Sample T01–23). ( a ) Typical EBSP from the grain. Although the bands can be seen they are relatively faint due to the difficulty in polishing biotite. ( b ) The indexed orientation derived from comparison of bands identified
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Electron backscatter diffraction data for the four zircon samples: (a) UX; (b) VIET1; (c) GST15; and (d) JAVA collected using the HKL “Best in Family” match unit. (i) Sample EBSPs collected from each sample and used in this study. (ii, iii, and iv) Maps for each sample showing variations in band contrast, MAD, and low-angle boundaries among the samples. In (ii) and (iii) non-indexed points are colored white. In (iv), different lines represent boundaries of different misorientation angle (0.25–0.5° = gray lines; 0.5–1° = thin black lines; &gt;1° = thick black lines).
Published: 01 January 2008
F igure 3. Electron backscatter diffraction data for the four zircon samples: ( a ) UX; ( b ) VIET1; ( c ) GST15; and ( d ) JAVA collected using the HKL “Best in Family” match unit. (i) Sample EBSPs collected from each sample and used in this study. (ii, iii, and iv) Maps for each sample
Journal Article
Published: 01 August 2017
European Journal of Mineralogy (2017) 29 (4): 603–612.
... of the synthetic phase Ag 4 Pd 3 Te 4 was also determined by single-crystal X-ray diffraction (XRD). It corresponds to the structure of sopcheite from the Lukkulaisvaara intrusion. Electron backscatter diffraction data obtained on material from other reported sopcheite occurrences are entirely consistent...
Journal Article
Journal: Geosphere
Published: 06 February 2019
Geosphere (2019) 15 (2): 357–381.
... analysis in heterogeneous shear zones. Specifically, we develop a methodology for the structural analysis of polyphase lithologies that defines the vorticity-normal surface based on lattice-scale rotation axes calculated from electron backscatter diffraction data using orientation statistics. In doing so...
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Journal Article
Published: 01 October 2016
American Mineralogist (2016) 101 (10): 2351–2354.
... ), an intrinsic hydrothermal mineral in IOCG deposits. Electron backscatter diffraction (EBSD) data were collected using the EDAX-TSL EBSD system on a FEI Helios NanoLab “DualBeam” FIB/SEM platform (Adelaide Microscopy). Analytical details are given in Appendix 1 1. Three data-processing methods...
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Average olivine grain size (A); grain boundary density, which corresponds to the total length of grain boundaries normalized by total area measured (B); and proportion of opx (C), all plotted as a function of shear strain rate. A and B are calculated from electron-backscattered diffraction data, and C is calculated from energy-dispersive X-ray spectroscopy maps.
Published: 01 January 2014
Figure 3. Average olivine grain size (A); grain boundary density, which corresponds to the total length of grain boundaries normalized by total area measured (B); and proportion of opx (C), all plotted as a function of shear strain rate. A and B are calculated from electron-backscattered
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A,B: Backscattered electron emission (BSE) images of fine-grained experimental amphibolite. A: Hydrostatic sample (W1779) with no shape-preferred orientation (SPO). B: Deformed sample (W1772) showing an SPO in both plagioclase and amphibole. In order of darkest to brightest, phases are plagioclase (p), amphibole (a), clinopyroxene (c), and a sulfide or iron oxide phase. C,D: Optical micrographs with full-wavelength plate inserted. C: Hydrostatic experimental sample exhibits random distribution of colors, indicating lack of lattice-preferred orientation (LPO). D: Sample deformed at 10−6 s–1, 800 °C, and 1 GPa shows dominantly blue grains, indicating strong LPO; electron backscatter diffraction data (see Fig. 2) show that this strong LPO is associated with amphibole grains.
Published: 01 June 2014
–1 , 800 °C, and 1 GPa shows dominantly blue grains, indicating strong LPO; electron backscatter diffraction data (see Fig. 2 ) show that this strong LPO is associated with amphibole grains.
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Comparison of quartz crystallographic preferred orientation patterns and crystallographic vorticity axis (CVA) plots, grouped by outcrop. The first column is quartz &lt;c&gt;-axis (0001) pole figures for Marqueñas quartzite clasts rotated to show centered XZ patterns. Pole figures plot c axes calculated from grain averages in the sample electron backscatter diffraction data map, with the number of grains indicated for each set of figures. The second column shows contoured pole figures of crystallographic vorticity axes. Color scale bars indicate vorticity axis and c-axis concentration in multiples of uniform density.
Published: 21 January 2025
plot c axes calculated from grain averages in the sample electron backscatter diffraction data map, with the number of grains indicated for each set of figures. The second column shows contoured pole figures of crystallographic vorticity axes. Color scale bars indicate vorticity axis and c -axis
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Outcrop photographs of the northernmost Marqueñas Formation metaconglomerate unit. (A) Outcrop H, looking west, viewed in the XtectZ plane. Contact with the Piedra Lumbre schist that defines the Plomo-Pecos shear zone is ≤3 m north of this photo. Some larger quartzite boulders are outlined for reference. (B) Part of outcrop C showing quartzite clasts suggesting top-to-the-N reverse-sense kinematics. View to the east. (C) Oblique view of part of outcrop D showing a quartzite clast with strain axis markings that was sampled for electron backscatter diffraction data analysis. Strain axes are marked with respect to the inferred tectonic strain framework (XZ marked on face parallel to pen; YZ on face perpendicular to pen).
Published: 21 January 2025
are outlined for reference. (B) Part of outcrop C showing quartzite clasts suggesting top-to-the-N reverse-sense kinematics. View to the east. (C) Oblique view of part of outcrop D showing a quartzite clast with strain axis markings that was sampled for electron backscatter diffraction data analysis. Strain
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Microstructural maps of grain 1 constructed from electron backscatter diffraction data. A: Phase and orientation map of grain 1 derived from ∼723,000 patterns collected at 200 nm step size. Zircon lattice orientation variations to 12° from the white cross are shown by the red scale bar. Reidite is shown in blue. White square corresponds to the detailed area shown in B. B: Detail of grain 1 constructed from 200,000 patterns collected at a step size of 50 nm. Lattice variations in both zircon (red) and reidite (blue) are consistent and have a total magnitude of 5° from the white crosses.
Published: 01 October 2015
Figure 3. Microstructural maps of grain 1 constructed from electron backscatter diffraction data. A: Phase and orientation map of grain 1 derived from ∼723,000 patterns collected at 200 nm step size. Zircon lattice orientation variations to 12° from the white cross are shown by the red scale bar
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Microstructural maps of grain 86 constructed from electron backscatter diffraction data. A: Map of grain 86 constructed from ∼530,000 patterns collected at 200 nm step size showing zircon lattice orientation variations in red (to 8° from the white cross) and areas indexed as reidite in blue. White squares in A mark the location of detailed map B. B: Detailed orientation map of grain 86 derived from 160,000 patterns collected at 50 nm step size showing orientation variations in zircon to 7°. Reidite, colored using the inset inverse pole figure, shows three different orientations of lamellae. Individual lamellae are locally deformed and show areas of poor indexing. C, D: Two areas show the presence of baddeleyite (purple) and a nonindexed phase (black) interpreted to be amorphous silica.
Published: 01 October 2015
Figure 4. Microstructural maps of grain 86 constructed from electron backscatter diffraction data. A: Map of grain 86 constructed from ∼530,000 patterns collected at 200 nm step size showing zircon lattice orientation variations in red (to 8° from the white cross) and areas indexed as reidite
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Tera-Wasserburg concordia diagrams of U-Th-Pb sensitive high-resolution ion microprobe (SHRIMP) geochronology results from deformed monazite (ages along curves in Ma). A: SHRIMP results for all spots color-coded to analytical domain (host, host and twin, and recrystallized domains). Boxes correspond to concordia diagrams B and C. B: Concordia diagram of all analyses from analytical spots within host and overlapping the twins, color coded to mean misorientation. Mean misorientation (°) is calculated from electron backscattered diffraction data corresponding to SHRIMP spot locations using Channel5 software (see the Data Repository [see footnote 1] for details). Note correlation between increased mean misorientation and discordance. C: Concordia diagram of six of the eight analyses from within recrystallized domains, with concordia age regression of 970 ± 14 Ma (2σ).
Published: 01 May 2015
). Boxes correspond to concordia diagrams B and C. B: Concordia diagram of all analyses from analytical spots within host and overlapping the twins, color coded to mean misorientation. Mean misorientation (°) is calculated from electron backscattered diffraction data corresponding to SHRIMP spot locations
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Electron backscatter diffraction (EBSD) crystal orientation data. A: EBSD pattern quality map with remnant concentric zones marked 1–5. B: EBSD inverse pole figure map, showing two major orientation groups (green-blue and pink-orange). C: Equal-angle lower hemisphere projection pole figures for zircon [001] and &lt;110&gt; directions, color coded as in B. D: Schematic reconstruction of orientation of parent zircon (i) and former reidite (ii) before reverse transformation to “former reidite in granular neoblastic” (FRIGN) zircon with current orientations (iii).
Published: 22 May 2019
Figure 4. Electron backscatter diffraction (EBSD) crystal orientation data. A: EBSD pattern quality map with remnant concentric zones marked 1–5. B: EBSD inverse pole figure map, showing two major orientation groups (green-blue and pink-orange). C: Equal-angle lower hemisphere projection pole
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(A) Electron backscatter diffraction (EBSD) data show lattice misorientation within olivine (1–2), amphibole (3), and orthopyroxene (4). Maximum local misorientation from arbitrary point (white cross) varies for each crystal (see respective legend). (B) Pole figure and (C) misorientation axes data from crystal 1. (D–E) Olivine (Ol) low-angle boundary analyses and their respective misorientation axes for boundaries b1 and b2. (F) Amphibole (Amp) low-angle boundary analysis and misorientation axes. (G) Orthopyroxene (Opx) low-angle boundary analysis and misorientation axes.
Published: 12 December 2018
Figure 7. (A) Electron backscatter diffraction (EBSD) data show lattice misorientation within olivine (1–2), amphibole (3), and orthopyroxene (4). Maximum local misorientation from arbitrary point (white cross) varies for each crystal (see respective legend). (B) Pole figure and (C
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Electron backscatter diffraction (EBSD) microstructural data for baddeleyite grains collected across a linear transect north of the Sudbury impact structure. Presented data sets were collected at &lt;100 nm step size. Inverse pole figure maps are presented for grains within samples MDS001 (A), JD12SUD06 (B), JD12SUD03 (C), and JD12SUD14 (D) with &lt;1° (thin black lines) and &lt;10° (thick gray lines) grain boundaries highlighted for the three shock-deformed samples (B–D). Subgrains I and II are highlighted in composite grain (B) for reference. This reveals the increasing nanostructural complexity of grains with increasing proximity to the Sudbury impact melt sheet, and evidences the loss of straight high-angle boundaries separating igneous twin domains. For reference, &lt;100&gt;, &lt;010&gt;, and &lt;001&gt; pole figures are included for these data sets, highlighting the prevalence of orthogonally related crystallographic orientations in all shocked baddeleyite. SC—shattercone; QPF— quartz planar features; SIC—Sudbury igenous complex.
Published: 12 July 2018
Figure 2. Electron backscatter diffraction (EBSD) microstructural data for baddeleyite grains collected across a linear transect north of the Sudbury impact structure. Presented data sets were collected at <100 nm step size. Inverse pole figure maps are presented for grains within samples
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Electron backscatter diffraction (EBSD) data for granular zircon grains in Australasian Muong Nong–type (MN-type) tektites. A: Maps showing crystallographic orientations in Euler coordinate space. Elliptical areas without data are secondary ion mass spectrometry (SIMS) pits. B: Pole figures showing data from maps in A for (001) and {110}. Angular separations of 90° are shown for {110}. C: Plots showing high-angle (85° to 95°) misorientation axes. Misorientation axes coincide with poles for (001) and {110}. Stereonets are equal area, lower hemisphere projections in sample x-y-z reference frame.
Published: 20 December 2017
Figure 3. Electron backscatter diffraction (EBSD) data for granular zircon grains in Australasian Muong Nong–type (MN-type) tektites. A: Maps showing crystallographic orientations in Euler coordinate space. Elliptical areas without data are secondary ion mass spectrometry (SIMS) pits. B: Pole
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Electron backscatter diffraction (EBSD) data for biotite–plagioclase reaction zone in VR36. In parts (a) and (b), two maps at different resolution make up the image: map A (5 μm step size) at left, map B (3 μm step size) at right. (a) EBSD phase map of the texture of interest showing indexed garnet (red) and biotite (blue). (b) Euler orientation map of indexed garnet and biotite. (c–f) Lower-hemisphere, equal-area projections of poles to lattice planes in maps A and B. Dashed white circles highlight congruent planes. (g–j) Lower-hemisphere, equal-area projections of lattice directions in maps A and B. Dashed white circles highlight congruent directions.
Published: 01 January 2015
Fig. 5 Electron backscatter diffraction (EBSD) data for biotite–plagioclase reaction zone in VR36. In parts (a) and (b), two maps at different resolution make up the image: map A (5 μm step size) at left, map B (3 μm step size) at right. (a) EBSD phase map of the texture of interest showing