Petrography, biomarker composition, mineralogy, inorganic geochemistry and paleodepositional environment of coals from La Ballesta mine, Peñarroya Basin, Spain

Purpose The purpose of this work is to study coal samples from various exposed seams of the La Ballesta mine, at the southeastern edge of the Penarroya-Belmez-Espiel coalfield, southwestern Spain. Shaly seat- and caprocks were also investigated.