Lucero Volcanic Field


Location: 34°42' N, 107° 20' W, Valencia County
Type: Basaltic shield volcano, scoria cones, associated lava flows; older basaltic mesas
Age: ~8.3 Ma to ~1.1 Ma
Composition:

 Basanite, alkali basalt, theoleiitic basalt.



Older lava flows cap mesas on the eastern edge of the field and overlying the monoclinal eastward-dipping western margin of the Rio Grande rift. Cerro Verde, one of the younger centers of volcanism, is a classic basaltic shield volcano that fed lava flows 42 km long. The lava flows are persereved along the margins of the modern Rio San Jose, an eastward draining tributary of the Rio Puerco and Rio Grande. 

 

 

Cerro Colorado  ("Volcano Hill")

Photo by Dr. Larry Crumpler

 

 

 

 

Lucero Mesa monocline (above)

Photo by Dr. Larry Crumpler

 

 

 

Geologic map of Lucero region  from the State Geologic Map, New Mexico Bureau of Geology

 

 

Cerro Verde

Photo by Dr. Larry Crumpler

 

 

Black Mesa slumps (Lucero Field)

Photo by Dr. Larry Crumpler

 

 

 


View Lucero Volcanic Field in a larger map

 

References

Baldridge, W. S. Perry, F. V., and Shafiqullah, M., 1987, Late Cenozoic volcanism of the southeastern Colorado Plateau: I. Volcanic geology of the Lucero area, New Mexico: Geological Society of America Bulletin, v. 99, p. 463-470.

 

Baldridge, W. S , 1990. Lucero, New Mexico; in Wood, C. A., and Kienle, J. (eds), Volcanoes of North America: Cambridge University Press, Cambridge, p. 305-306.

 

 

  


All text and photo credit due to Dr. Larry Crumpler, New Mexico Museum of Natural History and Science


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