A thermal maturity map based on vitrinite reflectance of British coals L. Bullock J. Parnell D. Muirhead J. Armstrong A. Schito S. Corrado 10.6084/m9.figshare.8230106.v1 https://geolsoc.figshare.com/articles/journal_contribution/A_thermal_maturity_map_based_on_vitrinite_reflectance_of_British_coals/8230106 Statistical summary of VR data. 2019-06-05 10:46:16 British coals Statistical summary maturity map vitrinite reflectance VR data Geology