Supplemental material to "The Impact of Matrix Rheology and Stress Concentration in Embedded Brittle Clasts" by Paraskevi Io Ioannidi, Kyle Bogatz, and Jacqueline E. Reber ds01 Folder with scans of traces collected in the field: tif. Nomenclature for the files herein: All the scans are original and have not been processed. They were obtained by scanning traces of clast in marker ink on transparent plastic. All traces were collected at the Papoose Flat pluton, SE California, in fall 2018 and 2019. The exact geographical locations can be found in the supplemental information data table. Color key: Black: Clasts Green (all shades): Fractures Blue (all shades): Flow patterns visible in the matrix Yellow: Quartz bands NWO - 'Northwest' location. Labeled #1 in data table in supporting information and Figure 1 in the accompanying paper. nwo19 - 'Northwest' location. Labeled #2 in data table in supporting information Figure 1 in the accompanying paper. nco19 - 'North Central' location. Labeled #3 in data table in supporting information Figure 1 in the accompanying paper. sco19 - 'South central' location. Labeled #4 in data table in supporting information Figure 1 in the accompanying paper. SWO - 'Southwest' location labeled #5 in data table in supporting information Figure 1 in the accompanying paper. swo19 - 'Southwest' location. Labeled #6 in data table in supporting information Figure 1 in the accompanying paper. Ioannidi_etal_SuppInfo: pdf. Contains all supplementary information (data collection locations, flow law figure and explanation)