About: http://webisa.webdatacommons.org/6469210

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	In today's condition, subsurface is thinner compared to four billion years ago, and especially in ridges that expands at very low speed, it becomes possible for mantle rocks to be exposed.
http://www.w3.org/ns/prov#wasQuotedFrom	jamstec.go.jp