Tertiary-Cretaceous intrusive rocks (NMTKi;0)

Tertiary-Cretaceous intrusive rocks

Includes granodiorite to quartz monzonite stocks and plutons at Hanover, Fierro, Tyrone, Lordsburg, and the 73 Ma quartz monzonite porphyry stock at Copper Flatsin Sierra County. Also includes many norhteast-trending monzonite porphyry dikes in the Silver City region.

State	New Mexico
Name	Tertiary-Cretaceous intrusive rocks
Geologic age	Paleocene and upper Cretaceous
Lithologic constituents	Major Igneous > Plutonic > Syenitic > Quartz-monzonite (Pluton, Stock or pipe, Dike or sill)granodiorite to quartz monzonite stocks and plutons; many northeast-trending monzonite porphyry dikes Igneous > Plutonic > Granitic > Granodiorite (Pluton, Stock or pipe)granodiorite to quartz monzonite stocks and plutons
References	Green, G.N., Jones, G.E., and Anderson, O.J., 1997, The Digital Geologic Map of New Mexico in ARC/INFO Format: U.S. Geological Survey Open-File Report 97-0052, 9 p., scale 1:500,000. https://pubs.er.usgs.gov/publication/ofr9752
NGMDB product	NGMDB product page for 59219 NGMDB product page for 22974
Counties	Grant - Hidalgo - Sierra

Tertiary-Cretaceous intrusive rocks

Green, G.N., Jones, G.E., and Anderson, O.J., 1997, The Digital Geologic Map of New Mexico in ARC/INFO Format: U.S. Geological Survey Open-File Report 97-0052, 9 p., scale 1:500,000.