jgs2018-152_si_005.jpg (1.9 MB)
Fig S2. Fabrics and water contents of peridotites in the Neotethyan Luobusa ophiolite, Southern Tibet: Implications for mantle recycling in suprasubduction zones
figureposted on 2018-11-20, 12:35 authored by Meng Yu, Qin Wang, Jingsui Yang
Fig. S2. Bright-field images of olivine grains from the Luobusa peridotites and corresponding selected area electron diffraction patterns (insets). For different samples, the left micrographs are bright-field TEM images obtained when the zone axis of olivine parallel to the electron beam, and the right micrographs are bright-field TEM images under two-beam conditions of the same area as in the left. (a) Bright-field TEM image viewed down  zone axis of olivine from sample B98. (b) Bright-field TEM image with a diffraction vector g=110, and the dislocations with Burgers vector b=001 become out of diffraction contrast. (c) Bright-field TEM image viewed down  zone axis of olivine from sample B106. (d) Bright-field TEM image with a diffraction vector g=200, and the dislocations with Burgers vector b=001 become out of diffraction contrast. (e–t) The same as above (the zone axis can be deduced from the selected area electron diffraction pattern which normal to the pattern, and the Burgers vector of the extinction dislocation can be calculated using g ∙ b = 0 and g ∙ (b Ʌu) = 0 criteria).