About: http://webisa.webdatacommons.org/201148077

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 frequency and orientation of joints, bedding planes and other discontinuities as well as their properties affects the quality or strength of the rock mass, which influences the stability of the rock mass (Fig. 2).
http://www.w3.org/ns/prov#wasQuotedFrom	usgs.gov