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Geologic Unit: Mowitza
Map showing publication footprint
  • Usage in publication:
    • Mowitza shale*
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Shale
  • AAPG geologic province:
    • Great Basin province
Publication:

Butler, B.S., 1913, Geology and ore deposits of the San Francisco and adjacent districts, Utah: U.S. Geological Survey Professional Paper, 80, 212 p., (incl. geologic map, scale 1:62,500)


Summary:

Mowitza shale. Calcareous shale interstratified with thin beds of limestone. Thickness 50 feet. Underlies (conformably) Topache limestone and overlies (conformably) Red Warrior limestone. Age is Late Devonian.
Type locality: Mowitza shaft, Star district, southeast of Frisco district, southwestern UT.

Source: US geologic names lexicon (USGS Bull. 896, p. 1446).


Map showing publication footprint
  • Usage in publication:
    • Mowitza Shale†
  • Modifications:
    • Abandoned
  • AAPG geologic province:
    • Great Basin province
Publication:

Sandberg, C.A., and Poole, F.G., 1977, Conodont biostratigraphy and depositional complexes of Upper Devonian cratonic-platform and continental-shelf rocks in the western United States, IN Murphy, M.A., and others, eds., Proceedings of the 1977 annual meeting of the Paleontological Society on Devonian of western North America: University of California-Riverside, Campus Museum Contributions, Paleontological Society, 1977 annual meeting, Riverside, CA, November, 1977, no. 4, p. 144-182.


Summary:

Pg. 169, 170 (fig. 14). †Mowitza Shale. Abandoned. Rocks reassigned to upper member of Pinyon Peak Limestone. Since its original description (Butler, 1913), the term has seen little usage in the literature until resurrected by Baetcke (Utah Univ., unpub. PhD dissert., 1969) and Sandberg (Geol. Assoc. Canada Spec. Paper 15, 1976). At its type locality (Mowitza Mine in Star Range, southwestern Utah) comprises approx. 21 m-interval of interbedded marlstone, siltstone, and fossil-fragmental limestone within now-called upper member of Pinyon Peak Limestone. Collections MWZ-1 and -2 from limestone beds in middle part [†Mowitza Shale] of upper member of Pinyon Peak yielded conodonts of the POLYGNATHUS STYRIACUS zone (Upper Devonian; Famennian). See Pinyon Peak.
[Adopted by the USGS (see Changes in stratigraphic nomenclature, 1977, USGS Bull. 1457-A, p. A50).]

Source: Publication; Changes in stratigraphic nomenclature, 1977 (USGS Bull. 1457-A, p. A50).


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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