PNNL:10.1130/1052-5173(2005)015(22:IAFNGT)2.0.CO;2 PNNL:10.1130/2007.fld009(10) PNNL:10.1130/2009.fld015(34) PNNL:10.1130/2015.2513(11) PNNL:10.1130/G32675.1 PNNL:10.1130/GES00029.1 PNNL:10.1130/GES00902.1 PNNL:10.1130/GES00945.1