Solid Earth forcing of Mesozoic oceanic anoxic events

Supplementary Data S1 (Files beginning with "summed"): Seafloor production rates along nine nascent mid-ocean ridge systems identified in the study. Data files are provided for each ridge individually (for labels, see Fig. 3 and Extended Data Fig. 1) and for the global total production rates at each time step from 180 Ma to 10 Ma. The files provide columns for the age in Ma, seafloor production in km^2, ridge length in km, and mean spreading rate in km Myr^-1.

Supplementary Data S2 (Files beginning with "RERUN"): Modelled phosphorus release (in mol yr^-1) from each of the mid-ocean ridge systems (see Fig. 3), based on production rates provided in Supplementary Data S1 (see Methods for details). Data files are provided for each ridge individually (as shown in Extended Data Fig. 3) and for the global total flux (as shown in Fig. 3f). The files provide columns for the age in Ma (negative), mean and median P flux, min and max P flux, and the 5th, 10th, 90th and 95th percentile values.

Supplementary Data S3 (Files beginning "RegTS"): Modelled phosphorus fluxes (in mol yr^-1) from subaerial weathering events tied to substantial exhumation of basalts in southern Africa, the criteria for which are described in the Methods. Data are provided for 10 discrete events, combined in Fig. 4d. Each file provides columns for the age in Ma (negative), mean and median P flux, min and max P flux, and the 1st, 5th, 10th, 90th, 95th and 99th percentile values.

Supplementary Data S4 (Files beginning, e.g., "R1" or "W1", and "TGRID"). Output files from the biogeochemical models (used to plot Fig. 5) for ridges 1 to 9 (R1-R9) and weathering events 1 to 9 (W1-W9); the grid is also provided (filename "TGRID"). The Source Code is provided via the GitHub repository.