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.

补充数据S1（文件名以"summed"开头）：本研究识别出的9个新生洋中脊（mid-ocean ridge）系统的海底产出速率数据集。为每个洋中脊单独提供数据文件（标签详见图3与扩展数据图1），同时提供180 Ma至10 Ma各时间步的全球总产出速率数据。各数据文件包含以下字段：以Ma为单位的地质年龄、以km²为单位的海底产出面积、以km为单位的洋脊长度，以及以km Myr⁻¹为单位的平均扩张速率。

补充数据S2（文件名以"RERUN"开头）：基于补充数据S1中的产出速率，模拟得到的各洋中脊系统的磷释放通量（单位：mol yr⁻¹，详见图3），具体建模方法参见论文方法部分。为每个洋中脊单独提供数据文件（详见扩展数据图3），同时提供全球总磷通量数据（详见图3f）。各数据文件包含以下字段：以Ma为单位的地质年龄（负值）、平均与中位磷通量、磷通量的最小值与最大值，以及5th、10th、90th与95th百分位数值。

补充数据S3（文件名以"RegTS"开头）：模拟得到的与非洲南部玄武岩大规模剥露事件相关的陆上风化（subaerial weathering）作用磷通量数据集（单位：mol yr⁻¹），其筛选标准详见论文方法部分。本数据集包含10个离散风化事件的相关数据，相关结果汇总于图4d。各数据文件包含以下字段：以Ma为单位的地质年龄（负值）、平均与中位磷通量、磷通量的最小值与最大值，以及1st、5th、10th、90th、95th与99th百分位数值。

补充数据S4（文件名例如"R1"或"W1"以及"TGRID"）：用于绘制图5的生物地球化学模型（biogeochemical models）输出文件，对应1至9号洋中脊（R1-R9）与1至9号风化事件（W1-W9）；同时提供计算网格文件（文件名为"TGRID"）。源代码已通过GitHub仓库公开发布。