DMU Headnote
DMU Headnote
[The American River and Slate Creek terranes, described below, are intruded across the suture by the ~167-168 Ma Scales Pluton (unit Gscp), described above. As such, units of the Yuba River superterrane younger than ~167 Ma formed after the amalgamation of the two terranes, and are therefore considered part of an overlap sequence, even though only the Smartville Volcanic complex (Yosv) has been mapped as overlying both the American River and Slate Creek terranes.]