Journal of Geophysical Research: Solid Earth Supporting Information for
Cross-scale seismic anisotropy analysis in metamorphic rocks from the COSC-1 borehole in the Scandinavian Caledonides
Felix Kästner1,2, Simona Pierdominici1, Alba Zappone3,4, Luiz F. G. Morales3,5, Anja M. Schleicher1, Franziska D. H. Wilke1, and Christian Berndt2
1Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, 14473 Potsdam, Germany
2GEOMAR Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany
3Department of Earth Sciences, ETH Zürich, 8092 Zurich, Switzerland
4Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland
5Scientific Center for Optical and Electron Microscopy (ScopeM), ETH Zürich, 8093 Zurich, Switzerland
Contents of this file Table S1
Figures S1 to S3 Introduction
In Table S1, we compiled a complete list of the results of the laboratory seismic measurements for 16 core samples from the COSC-1 borehole. The
Sample Lithology Depth (m) Density
(g/cm³) Vp0x Vp0y Vp0z ⟨Vp0⟩ Vs0x Vs0y Vs0z ⟨Vs0⟩AVp0 AVs0 Examiner IGSN 106-1 Migmatite 403.09 2.76 5.93 6.10 5.81 5.94 3.6 3.4 3.42 3.48 4.79 5.60 FK BGRB5054RXG9401 143-1 Felsic gneiss 502.1 2.73 6.09 6.28 5.87 6.08 3.65 3.61 3.57 3.61 6.44 2.01 FK BGRB5054RXI9401 149-4 Metagabbro 522.41 2.99 6.53 6.52 6.44 6.5 3.76 3.64 3.79 3.73 1.29 4.10 FK ICDP5054EXK6601 193-2 Amphibolite 649.58 3.08 7.23 6.93 6.67 6.94 4.33 4.25 4.13 4.19 7.75 4.62 QW ICDP5054EXL6601 243-2 Calc-silicate gneiss 791.22 2.75 6.44 6.37 6.25 6.35 3.76 3.7 3.69 3.70 2.95 1.86 QW ICDP5054EXN6601 361-2 Felsic gneiss 1121.5 2.71 5.93 6.13 5.91 5.99 3.61 3.58 3.62 3.60 3.63 0.99 FK BGRB5054RXP9401 487-1 Felsic gneiss 1491.7 2.81 6.42 6.31 6.11 6.28 3.67 3.71 3.56 3.60 4.83 4.04 QW ICDP5054EXS6601 556-2 Amphibolite 1689.9 3.09 7.25 6.88 6.46 6.86 4.31 4.35 4.04 4.21 10.9 7.13 QW ICDP5054EXU6601 569-2 Mica schist 1744.3 2.83 6.67 6.36 5.5 6.18 4.13 3.73 3.06 3.64 17.6 25.90 FK ICDP5054EXV6601 593-4 Paragneiss 1881.5 2.83 6.90 6.52 5.08 6.17 4.16 3.64 2.99 3.59 26.4 28.30 FK ICDP5054EX47601 631-1 Am-rich gneiss 2097.7 3.07 7.12 6.78 6.53 6.81 4.30 4.20 3.51 3.99 8.29 18.4 QW ICDP5054EXY6601 641-5 Mica schist 2160.6 2.81 6.92 6.41 5.70 6.35 3.93 3.99 3.44 3.78 17.7 13.8 FK BGRB5054RXY9401 651-5 Mica schist 2220.5 2.77 6.74 6.41 5.64 6.27 4.12 3.74 3.29 3.72 16.3 20.10 FK BGRB5054RX0A401 661-3 Am-rich Gneiss 2279.3 2.94 7.32 6.79 6.26 6.79 3.87 3.94 3.69 3.83 14.6 6.26 FK BGRB5054RX1A401 664-2 Metasandstone 2296.3 2.68 6.09 6.31 6.04 6.15 4.15 4.08 3.93 4.05 4.36 5.34 FK ICDP5054EX6A601 691-1 Mica schist 2457.3 2.85 6.42 6.68 5.51 6.20 4.1 4.11 3.36 3.81 17.5 18.30 QW ICDP5054EX27601
Table S1. Complete sample list with results from laboratory seismic measurements. Based on measurements from Kästner et al., 2020 (FK);
Wenning et al., 2016 (QW). Lithology is based on the core description from Lorenz et al. (2015). The highlighted samples were used for structural analysis with EBSD.
Figure S1. S-wave velocity-pressure relation and anisotropy from laboratory seismic measurements on samples from the COSC-1 borehole. The core plug orientation (black arrows) and polarization direction (red arrows) are
indicated with respect to the macroscopic fabric elements (lineation and foliation) of the sample in the lower right corner.
Figure S2. ODF pole figure data of the major mineral phases from EBSD analysis of 5 samples from the COSC-1 borehole. For each phase the inverse pole figure map is displayed indicating the grain map and color-coded
orientations. The scale was normalized for individual phases and indicate the normalized multiples of uniform distribution.
Figure S3. Flinn-type diagram indicating the shape of intrinsic anisotropy in core samples from the COSC-1 borehole. Different fields of kvp correspond to prolate (kvp>2), triaxial (0.5<kvp<2) and oblate (0<kvp<0.5) ellipsoids, respectively, according to the x, y, and z velocity measurements of the core samples from Table S1. Values of kvp result from division of the displayed axes parameters (Barberini et al., 2007). Dashed lines indicate the degree of seismic anisotropy, AvP = 300 (vPx – vPz) / (vPx + vPy + vPz).
