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Map showing publication footprint
  • Usage in publication:
    • Superstition Tuff
  • Modifications:
    • Named
    • Geochronologic dating
  • Dominant lithology:
    • Tuff
  • AAPG geologic province:
    • Basin-and-Range province
Publication:

Stuckless, J.S., and Sheridan, M.F., 1971, Tertiary volcanic stratigraphy in the Goldfield and Superstition Mountains, Arizona, IN Note and Discussion: Geological Society of America Bulletin, v. 82, no. 11, p. 3235-3240.


Summary:

Named for extensive exposures in the Superstition Wilderness area, Superstition Mountains, Pinal Co, AZ in the Basin-and-Range province. Occurs in the McDowell Mountains to west in Maricopa Co, and in San Tan Mountains to southwest in Pinal Co. Lies within the 375-sq-mi interior of the Superstition cauldron. Consists of quartz latite ash-flow tuff. Divisible into three newly named members (oldest to youngest)--Siphon Draw, Dogie Spring, and Canyon Lake Members--that are 3,379 ft thick. The Siphon Draw has a 24.5 +/-0.5 m.y. (at top) and a 24.2 +/-0.9 m.y. (at base) F-T age on zircons. The Dogie Spring has a 18.4 +/-0.6 m.y. date by K-Ar method on biotite. The Canyon Lake has an age of 14.9 +/-0.8 m.y. by F-T dating on zircons. Geologic map; columnar section. Miocene age. Is older than some dacite domes, lavas, and autoclastic breccias [whose age is not stated]. Intruded by some quartz latites. Overlain by unnamed rhyolite gravels.

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


Map showing publication footprint
  • Usage in publication:
    • Superstition Tuff*
  • Modifications:
    • Adopted
  • AAPG geologic province:
    • Basin-and-Range province
Publication:

Stuckless, J.S., and O'Neil, J.R., 1973, Petrogenesis of the Superstition-Superior volcanic area as inferred from strontium- and oxygen-isotope studies: Geological Society of America Bulletin, v. 84, no. 6, p. 1987-1998.


Summary:

Superstition Tuff of Stuckless and Sheridan (1971) is adopted. Age is Miocene.

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


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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