GRD0409S0

19-57

Monzonite

Precambrian › Proterozoic › Paleoproterozoic › Statherian
1600.0 - 1800.0

0

Ritter 154 › Cabinet 29 › Drawer J

Quartz Monzonite

Twin Spruce Quartz Monzonite. Trace Allanite, Apatite and Zircon.

-

Boulder Creek Batholith

Colorado
Wondervu, CO on 72. WSW of BM 8772
Latitude: 39.9248°
Longitude: -105.4023°

-

N/A

N/A

USGSProfPaper1101.pdf (15.2 MB)
Specimen 77 - Modal analysis on table 8, p.30.