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Proterozoic basement rocks - Felsic phaneritic intrusive rocks

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This porphyritic rapakivi granite is present only in Clark County where it intrudes Proterozoic gneiss and schist (Xm).
State Nevada
Name Proterozoic basement rocks - Felsic phaneritic intrusive rocks
Geologic age Middle Proterozoic
Lithologic constituents
Major
Igneous > Plutonic > Granitic > Graniteporphyritic rapakivi granite
References

Crafford, A.E.J., 2007, Geologic Map of Nevada: U.S. Geological Survey Data Series 249, 1 CD-ROM, 46 p., 1 plate; Scale 1:250,000. Extended unit descriptions taken from pamphlet that accompanies geologic data/map.

https://pubs.er.usgs.gov/publication/ds249
NGMDB product
Counties Clark