About: http://webisa.webdatacommons.org/388245309

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	Sedimentary rock composed mostly of the mineral calcite and often containing marine fossils.
http://www.w3.org/ns/prov#wasQuotedFrom	usbr.gov