About: http://webisa.webdatacommons.org/233644020

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 voltage amplitudes of such electromagnetic waves 107 are in part determined by the relatively low frequencies, in the infrasonic range, and the presence of hydrocarbons, particularly oil, in the formation 103.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com