About: http://webisa.webdatacommons.org/389304754

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	Because they are products of weathering, clays are usually found in sedimentary rocks such as shale or mudstone; and because of their small size, they are easily carried great distances by rivers or even by ocean currents.
http://www.w3.org/ns/prov#wasQuotedFrom	nps.gov