Data Report: Tectonic and Induced Structures in the JFAST Core (IODP Exp. 343/343T) Supplementary Material Tucker T. Keren and James D. Kirkpatrick Department of Geosciences, Colorado State University, 1482 Campus Delivery, Fort Collins, CO 80523, USA One Microsoft Excel file (.xlsx) is included as supplementary material to the data report. The file, Keren&Kirpatrick Data Report 343 Supplementary Table.xlsx, contains the raw linear scanline and breccia zone image analysis data sampling structures in core sections 10R-1 through 20R-2, with the exception of core section 17R-1. Separate linear scanline sampling was employed for each structure category (see main text for guidelines). Columns A-D include results for Category 1 structures, in which column A is core number, column B is section number, column C is the depth of the intersection between the structure and scanline in the MSCL-I photos (cm), and column D is the depth of the intersection in meters below sea floor (mbsf, CSF-A). Columns F-I include results from Category 2 structures, and columns K-N include results from Category 3 structures, both with the previously described column organization. Original MSCL-I photos of cores examined in this study can be requested and downloaded from the IODP data repository at: http://sio7.jamstec.go.jp/split-section-image/343/C0019E/