en2015-08-18 18:04 PM CESThttp://inspire.ec.europa.eu/codelist/LithologyValue/organicBearingMudstone:1http://inspire.ec.europa.eu/codelist/LithologyValue/organicBearingMudstoneMudstone that contains a significant amount of organic carbon, typically kerogen. Commonly finely laminated, brown or black in color.