title: Peralkaline silicic volcanic rocks in northwestern nevada.
abstract: Late Tertiary silicic ashflow tuffs and lavas peralkaline in chemical character (atomic Na + K greater than Al), mainly comendites, occur over wide areas in northwestern Nevada and appear to be widespread in southeastern Oregon. Such peralkaline rocks-which are not uncommon in the western United States-and other chemically unusual silicic rocks are found near the margins rather than toward the center of the Great Basin.
authors.forename: D C
authors.initials: DC
authors.lastname: Noble
authors.forename: D W
authors.initials: DW
authors.lastname: Chipman
authors.forename: D L
authors.initials: DL
authors.lastname: Giles