DOI: 10.5281/zenodo.7849141
title: Supplementary files for Gernon et al. (2023) Rift-induced disruption of cratonic keels drives kimberlite volcanism

description: <strong>Supplementary files for Gernon et al. (2023) </strong> Rift-induced disruption of cratonic keels drives kimberlite volcanism This directory contains datasets, GIS files, Uninet model files and R scripts used to generate the figures in Gernon, T.M., Jones, S.M., Brune, S., Hincks, T.K., Palmer, M.R., Schumacher, J.C., Primiceri, R.M., Field, M., Griffin, W.L., O’Reilly, S.Y., Keir, D., Spencer, C.J., Merdith, A. & Glerum, A. Rift-induced disruption of cratonic keels drives kimberlite volcanism. Nature, doi: https://doi.org/10.1038/s41586-023-06193-3 (2023). <strong>Contents:</strong><br> <strong>GIS</strong><br> <em>COB_NAmerica.shp, COB_SAmerica.shp, COB_Africa.shp</em><br> Shapefiles for rifts in North America, South America and Africa with associated rift and breakup ages;<br> <em>Combined_database_Kimberlites_Tappe_Brazil.shp </em> Kimberlite locations (lon/lat) with ages <br> <strong>input data files</strong><br> <em>1_Ga_area_perimeter_1000_0_1myr.csv</em><br> Plate area and perimiter estimates used to generate Fragmentation index, see<br> Merdith A.S. et al., 2021, https://doi.org/10.1016/j.earscirev.2020.103477<br> and Merdith A.S. et al., 2017 https://doi.org/10.1016/j.gr.2017.04.001 <em>GoodwinPreservationCurve.csv</em><br> Surface preservation estimate (as a function of time) from Goodwin, A.M. 1996<br> https://doi.org/10.1016/B978-0-12-289770-2.X5000-6 <em>Kimberlites_ages.csv</em><br> Kimberlite database from Tappe et al. 2018, https://doi.org/10.1016/j.epsl.2017.12.013 <em>LIP_input.csv</em><br> Ages and extent of Large Igneous Provinces from Ernst, 2014, https://doi.org/10.1017/CBO9781139025300 <br> <em><strong>output data files</strong></em><br> <em>UNINET_KimberliteCount_LIPstart_dFrag_5MyrRes.csv and UNINET_Past500Myr_KimberliteCount_LIPstart_dFrag_5MyrRes.csv</em><br> 5 Myr aggregated time series for Uninet lag analysis <em>Symmetric_dFrag9Myr_alldataNA.csv</em><br> Time series (1 Myr resolution) for:<br> Fragmentation (Frag);<br> Rate of change of fragmentation (dFrag_9Myr), calculated over a moving interval t+/-4 Myr as a measure of breakup;<br> Kimberlite count (Kimberlites);<br> Kimberlite count corrected for preservation (see GoodwinPreservationCurve.csv above) (CorrKimberlites);<br> Initiation of Large Igneous Provinces (LIPstart) <em>CLUSTER_sample_rates_Fig1e_ExFig4a.zip (large csv file)</em><br> Output from <em>Migration_rate_estimates_with_uncertainty_MINLAG_and_MINDIST.r </em>containing simulated estimates of migration rate, accounting for time, distance and model (rift association uncertainty) for Kimberlite clusters in N America, S America and Africa. This ouptut was used to generate Fig 1e and Extended Data Fig 4a in Gernon et al (2023) <br> <strong>Uninet files</strong><br> <strong><em>UNINET_500Myr_5MryRes_dFrag9Myr_Kim</em></strong><br> <em>Emp_correl.txt, BN_correl.txt and Cond_correl.txt :</em> Emprical, BN and Conditional rank correlations for Kimberlites and lagged dFrag (rate of change of fragmentation) using a 5 Myr resolution time series for the past 500 Myr.<br> <em>CORRELATIONS_500Myr_5MryRes_dFrag9Myr_Kim.pdf </em>and <em>COND_CORR_500Myr_5MryRes_dFrag9Myr_Kim.pdf </em>plots showing correlation v.s. lag<br> <em>TEST_500Myr_5MryRes_dFrag9Myr_Kim.uninet</em> Uninet model file used to estimate correlations <strong><em>UNINET_1000Myr_5MryRes_LIPstartSum5Myr_dFrag9Myr</em></strong><br> <em>Emp_correl.txt, BN_correl.txt and Cond_correl.txt</em> : Emprical, BN and Conditional rank correlations for dFrag (rate of change of fragmentation) and lagged values of LIPstart (initiation of Large Igneous Provinces) using a 5 Myr resolution time series for the past 1000 Myr.<br> <em>COND_CORR_1000Myr_5MryRes_LIPstartSum5Myr_dFrag9Myr.pdf</em> plot showing conditional correlation vs. lag<br> <em>TEST_1000Myr_5MryRes_LIPstartSum5Myr_dFrag9Myr.uninet</em> Uninet model file used to estimate correlations <br> <strong>Generate_Fig1b_ExtFig2_ExtFig6</strong><br> <em>R_fig1b_extended_fig2bcd.r</em><br> R script to generate Fig 1b and Extended Data Figs 2 and 6 for Gernon et al. (2023)<br> [ also includes generated figures and output data files ] <br> <strong>Generate_migration_rate_estimates</strong><br> <em>Migration_rate_estimates_with_uncertainty_MINLAG_and_MINDIST.r</em><br> R script to generate Fig 1e, and Extended Data Figs 4 and 5 for Gernon et al. (2023)<br> [ also includes generated figures and output data files ]<br> Note: <em>UNINET_KimberliteCount_LIPstart_dFrag_5MyrRes.csv</em> and <em>UNINET_Past500Myr_KimberliteCount_LIPstart_dFrag_5MyrRes.csv</em> are inputs to the Uninet models described above.