About: http://webisa.webdatacommons.org/97033179

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	Some of this material, particularly silica, was deposited along grain boundaries and microfractures, causing the observed permeability decreases.
http://www.w3.org/ns/prov#wasQuotedFrom	usgs.gov