| State | Alabama |
|---|---|
| Name | Rockford Granite |
| Geologic age | Precambrian to Paleozoic |
| Lithologic constituents |
Major
Igneous > Plutonic > Granitic > Leucocratic-granitic
Minor
Igneous > Plutonic > Granitic > Granodiorite
Igneous > Plutonic > Granitic > Tonalite > Trondhjemite
Incidental
Igneous > Plutonic > Granitic > Leucocratic-granitic > Pegmatite
|
| References | Szabo, M.W., Osborne, E.W., Copeland, C.W. Jr., and Neathery, T.L., 1988, Geologic Map of Alabama, Geological Survey of Alabama Special Map 220, scale 1:250,000.USGS Geologic Names lexicon found at: http://ngmdb.usgs.gov/Geolex/https://ngmdb.usgs.gov/Geolex/search |
| NGMDB product | |
| Counties | Chilton - Clay - Coosa - Elmore |