About: http://webisa.webdatacommons.org/384383583

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	These point to the fact that the surface is made up chiefly of basalts and other mafic rocks which would have erupted as low viscosity lava flows and hence lead to the low gradients on the surface of the planet.
http://www.w3.org/ns/prov#wasQuotedFrom	bris.ac.uk