Laramide Anorthosite Complex--pyroxene and hornblende syenite

Pyroxene and hornblende syenite--Age 1,435 Ma. In Laramie Mountains.
State Wyoming
Name Laramide Anorthosite Complex--pyroxene and hornblende syenite
Geologic age Middle Proterozoic
Lithologic constituents
Major
Igneous > Plutonic > Syenitic > Syenite
References
NGMDB product
Counties Albany - Platte