CONTENTS----------------------------------------------------------------------Six full-resolution animations (S1-S6) referenced in the article anddescribed in detail in its Supporting Information (Section S2). Theyillustrate the correlation between wave patterns and kinematic/strainparameters during the three phases of shear fault evolution indiscrete element simulations of a granular shear zone, for twoconfigurations of the top wall mass: Model A = low-mass top wall (M_A = M_S, sample mass) Model B = high-mass top wall (M_B = 100 M_S) Files: S1_Model_A_Phase_1-2.m4v Phase 1 and transition to Phase 2, simulated time [0, 0.1 ms] S2_Model_A_Phase_2.m4v Phase 2, shear-zone growth at sub-melting temperature, [3.1, 3.15 ms] S3_Model_A_Phase_3.m4v Phase 3, shear weakening at flash-heating temperatures, [18, 18.05 ms] S4_Model_B_Phase_1-2.m4v Phase 1 and transition to Phase 2, [0, 0.1 ms] S5_Model_B_Phase_2.m4v Phase 2, [3.1, 3.15 ms] S6_Model_B_Phase_3.m4v Phase 3, [18, 18.05 ms] README.txt Supporting_Information_Taboada_et_al_2026.pdf (copy of the article's Supporting Information, identical to the journal-hosted version) ----------------------------------------------------------------------ACKNOWLEDGEMENTS----------------------------------------------------------------------This study was sponsored by the ALEAS program (CNRS INSU), whichprovided access to the High-Performance Computing Platform MESO@LR.We also thank Oxford University Press for granting a full ArticleProcessing Charge waiver for this publication.