. . . . . . . . . . . . . "Preliminary description of quaternary and late pliocene surficial deposits at Yucca Mountain and vicinity, Nye County, Nevada"@en . . . "Preliminary description of quaternary and late pliocene surfical deposits at Yucca Mountain and vicinity, Nye County, Nevada"@en . . . . . . "USGSPUB." . . "USGSOFR." . .