Media type: E-Article Title: Evidence of widespread wildfires in a coal seam from the middle Permian of the North China Basin Contributor: Sun, Yuzhuang; Zhao, Cunliang; Püttmann, Wilhelm; Kalkreuth, Wolfgang; Qin, Shenjun Published: GeoScienceWorld, 2017 Published in: Lithosphere (2017), Seite L638.1 Language: English DOI: 10.1130/l638.1 ISSN: 1941-8264; 1947-4253 Origination: Footnote: Access State: Open Access