About: http://webisa.webdatacommons.org/95442313

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	Naturally occurring radioactive materials, especially radium and uranium, occur in the same horizontal zone of shale rock that contains oil and gas deposits.
http://www.w3.org/ns/prov#wasQuotedFrom	ecowatch.com