About: http://webisa.webdatacommons.org/284793346

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	+ the S in coal = FeO2 and H2SO4, or some such.)I do not think the ash layer has any effect on it, one way or the other, except as a distraction.
http://www.w3.org/ns/prov#wasQuotedFrom	nepacrossroads.com