title: New focus on tar sands.
authors.forename: Nigel
authors.initials: N
authors.lastname: Williams
mesh_terms: D002617:Chemical Industry / Q000379:methods*; D003246:Conservation of Energy Resources; D004777:Environment; D052918:Environmental Restoration and Remediation; D012822:Silicon Dioxide / Q000737:chemistry*; D013638:Tars / Q000737:chemistry*
chemical_list: D013638:Tars; D012822:Silicon Dioxide