Presentation Information

[R1P-02]Transmission Kikuchi diffraction analysis using a SEM apparatus and its application to fine grains within ultramylonitic peridotite

*Yohei Igami1, Katsuyoshi Michibayashi2 (1. Kyoto Univ., 2. Nagoya Univ.)

Keywords:

transmission Kikuchi diffraction (TKD),EBSD,olivine,ultramylonite,peridotite

<div class="is-print-hide" style="height:0; overflow:hidden; max-width:100%; padding-bottom:84%; position:relative;"><iframe allow="fullscreen" allowfullscreen="true" frameborder="0" src="https://confit2.atlas.jp/articles/event/jams2021/slide/R1P-02", style="height:100%; left:0; position:absolute; top:0; width:100%;"></iframe></div>
We report the application of transmission Kikuchi diffraction (TKD) analysis using the scanning electron microscope (SEM), which is capable of high-spatial-resolution crystallographic texture analysis, to an ultramylonitic peridotite sample. We successfully obtained TKD maps with high spatial resolution and with highly reliable indexing using a conventional W-SEM with a standard electron backscattered diffraction (EBSD) system. TKD efficiently analyzed the crystallographic textures of polycrystalline rocks consisting of submicrometer-order grains.