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Map showing publication footprint
  • Usage in publication:
    • Mickey Pass Tuff
  • Modifications:
    • Named
  • Dominant lithology:
    • Tuff
  • AAPG geologic province:
    • Great Basin province
Publication:

Proffett, J.M., Jr., and Proffett, B.H., 1976, Stratigraphy of the Tertiary ash-flow tuffs in the Yerington district, Nevada: Nevada Bureau of Mines and Geology Report, no. 27, 28 p.


Summary:

Named for exposures just north of Mickey Pass. Type area designated as exposures northeast of Mickey Pass, SE/4 sec. 13, T13N R24E and SW/4 sec. 18, T13N R25E, Singatse Range, Lyon Co., NV. Divided into (ascending): Guild Mine Member (units 1-3), unnamed map units 4 and 5, Weed Heights Member (unit 6), and unnamed map unit 7. Composed of brown, pink, and lavender ash-flow tuffs with minor interbedded rhyolitic tuffs and sedimentary rocks. Consists of two major ash-flow tuff cooling units with interbedded thin tuffs and sedimentary rocks. Thickness is 760 m at type with range up to 900 m maximum elsewhere. Unconformably overlies unnamed early Tertiary rocks; underlies the Singatse Tuff (new). Age is Oligocene age based on radiometric (K-Ar) determinations of 28 to 24 Ma.

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


Map showing publication footprint
  • Usage in publication:
    • Mickey Pass Tuff*
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Great Basin province
Publication:

Bingler, E.C., 1978, Abandonment of the name Hartford Hill Rhyolite Tuff and adoption of new formation names for middle Tertiary ash-flow tuffs in the Carson City-Silver City area, Nevada, IN Contributions to stratigraphy, 1979: U.S. Geological Survey Bulletin, 1457-D, p. D1-D19.


Summary:

Geographically extended into west central Nevada where unit unconformably overlies pre-Tertiary rocks and unconformably underlies the Lenihan Canyon Tuff (new).

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


Map showing publication footprint
  • Usage in publication:
    • Mickey Pass Tuff*
  • Modifications:
    • Revised
    • Geochronologic dating
  • AAPG geologic province:
    • Great Basin province
Publication:

Ekren, E.B., Byers, F.M., Jr., Hardyman, R.F., Marvin, R.F., and Silberman, M.L., 1980, Stratigraphy, preliminary petrology and some structural features of Tertiary volcanic rocks in the Gabbs Valley and Gillis Ranges, Mineral County, Nevada: U.S. Geological Survey Bulletin, 1464, 54 p.


Summary:

Included as the lowest formation in Benton Spring Group (new). Mickey Pass Tuff and its members, the Guild Mine and Weed Heights Members of Proffett and Proffett (1976) are herein adopted. Radiometric (K-Ar; sanidine) age for sample collected in Wild Horse Canyon, Gillis Range, 3.35 km south of bend in canyon, lat 3846.7'N, long 11826.0'W from the Guild Mine Member yielded 27.6 +/-0.8 Ma; sample from same place on plagioclase yielded 24.4 +/-0.7 Ma.

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


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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 ( ).

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