About: http://webisa.webdatacommons.org/186746736

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	Most deposits of this type were laid down about 2.5 billion years ago at a time when Earth's atmosphere still consisted mainly of nitrogen and carbon dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom	daviddarling.info