title: Geomarkers versus biomarkers: paleoenvironmental and astrobiological significance.
authors.affiliation: Centro de Astrobiologia CSIS/INTA, NASA Astrobiology Institute Ctra de Ajalvir, Madrid, Spain.
authors.forename: Jesus
authors.initials: J
authors.lastname: Martinez-Frias
authors.forename: Ester
authors.initials: E
authors.lastname: Lázaro
authors.forename: Abraham
authors.initials: A
authors.lastname: Esteve-Núñez
mesh_terms: D015415:Biomarkers; D018559:Exobiology; D013053:Spectrophotometry / Q000295:instrumentation / Q000379:methods
chemical_list: D015415:Biomarkers