← Search

Sample SQ15

NavDat sample number 6682 · TUFF

Sample

Sample IDSQ15
Rock nameTUFF
Rock typeVOLCANIC
CompositionFELSIC
MaterialIGNEOUS
Collected byE.C. Bingler
CommentBlack crystal-rich rhyodacite vitrophyre characteristic of the base of the Guild Mine Member. Ages are discordant. Biotite age is within analytical uncertainty of the 27 to 28 million year ages reported for the base of the Mickey Pass Tuff Proffett and Proffett, 1976; Bingler, 1978a; Ekren and others, in press at time.

Location

Latitude38.955
Longitude-118.927
LocationMineral County
State / provinceNevada
Volcanic fieldNorthern Wassuck Range

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
25.7 24.9 26.5

Analyses

No chemical analyses are stored for this sample.

References