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  • Usage in publication:
    • Jerky Mountains Rhyolite
  • Modifications:
    • Named
  • Dominant lithology:
    • Rhyolite
  • AAPG geologic province:
    • Basin-and-Range province
Publication:

Elston, W.E., 1968, Terminology and distribution of ash-flows of the Mogollon-Silver City-Lordsburg region, New Mexico, IN Titley, S.R., ed., Southern Arizona guidebook III: Arizona Geological Society Guidebook, p. 231-240.


Summary:

Named for Jerky Mountains, Catron Co, NM, Basin-and-Range province. No type locality designated. Is a single-feldspar flow-banded rhyolite. Shown on figure 2 as (spelled Jerky Mountain) over Bloodgood Canyon Rhyolite and under Last Chance? Andesite. Of Tertiary age. [Description inadequate for a new name.]

Source: GNU records (USGS DDS-6; Denver GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Jerky Mountain flow-banded rhyolite
  • Modifications:
    • Paleomagnetics
  • AAPG geologic province:
    • Basin-and-Range province
Publication:

Strangway, D.W., Simpson, J., and York, D., 1976, Paleomagnetic studies of volcanic rocks from the Mogollon Plateau area of Arizona and New Mexico, IN Elston, D.P., and Northrop, S.A., eds., Cenozoic volcanism in southwestern New Mexico; a volume in memory of Rodney C. Rhodes, 1943-1975: New Mexico Geological Society Special Publication, no. 5, p. 119-125.


Summary:

In a section measured at West Baldy, Catron Co, NM, Basin-and-Range province, Jerky Mountain flow-banded rhyolite [author is referring to Jerky Mountains Rhyolite] is found to be reversely magnetized everywhere sampled. Magnetostratigraphic position of Jerky Mountain unit within a preliminary model of the middle Tertiary paleomagnetic reversal pattern is depicted on fig. 5.

Source: GNU records (USGS DDS-6; Denver GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Jerky Mountains Rhyolite
  • Modifications:
    • Geochronologic dating
  • AAPG geologic province:
    • Basin-and-Range province
Publication:

Marvin, R.F., Naeser, C.W., Bikerman, Michael, Mehnert, H.H., and Ratte, J.C., 1987, Isotopic ages of post-Paleocene igneous rocks within and bordering the Clifton 1 degree x 2 degrees quadrangle, Arizona-New Mexico: New Mexico Bureau of Mines and Mineral Resources Bulletin, no. 118, 64 p.


Summary:

Is a flow-banded rhyolite in the western and central Mogollon-Datil volcanic field, Basin-and-Range province. Has yielded ages of 27.6 +/-1.8 m.y (whole-rock glass), 26.2 +/-1.2 m.y. (sanidine), 27.7 +/-2 m.y. (biotite), and 24.8 +/-2 m.y. (whole rock). [These ages are generally regarded as Oligocene.]

Source: GNU records (USGS DDS-6; Denver GNULEX).


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For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).

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