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Geologic Unit: Aurora
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Map showing publication footprint
  • Usage in publication:
    • Aurora sandstone member
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Sandstone
    • Shale
  • AAPG geologic province:
    • Appalachian basin
Publication:

Prosser, C.S., 1912, The Devonian and Mississippian formations of northeastern Ohio: Ohio Division of Geological Survey Bulletin, 4th series, no. 15, 574 p.


Summary:

Pg. 123, 209, 211. Aurora sandstone member of Orangeville formation. Blue, fine-grained sandstone with some thin shale partings, forming middle member of Orangeville formation in Cuyahoga and Chagrin valley, northeastern Ohio. Underlain by black Sunbury shale member of Orangeville and overlain by Brecksville shale member of Orangeville. Age is Mississippian.
Named from exposures on Aurora Creek, in northwestern part of Portage Co., northeastern OH.
[GNC remark (ca. 1936, US geologic names lexicon, USGS Bull. 896, p. 34): The Sunbury shale is now excluded from Orangeville shale, so that Aurora sandstone is basal member of the Orangeville.]

Source: US geologic names lexicon (USGS Bull. 896, p. 34).


Map showing publication footprint
  • Usage in publication:
    • Aurora submember
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Appalachian basin
Publication:

Holden, F.T., 1942, Lower and Middle Mississippian stratigraphy of Ohio: Journal of Geology, v. 50, no. 1, p. 34-67.


Summary:

Pg. 41 (table 2), 44-45; Illinois Acad. Sci. Trans., v. 34, no. 2, p. 172, 1942. Listed as Aurora submember of Orangeville shale member of Tinkers Creek facies of Cuyahoga formation. Age is Mississippian.

Source: US geologic names lexicon (USGS Bull. 1200, p. 172-173).


Map showing publication footprint
  • Usage in publication:
    • Aurora siltstone member
  • Modifications:
    • Revised
    • Adopted
  • AAPG geologic province:
    • Appalachian basin
Publication:

Pepper, J.F., de Witt, Wallace, Jr., and Demarest, D.F., 1954, Geology of the Bedford shale and Berea sandstone in the Appalachian basin: U.S. Geological Survey Professional Paper, 259, 111 p., See also de Witt, Wallace, Jr., 1946, USGS Oil and Gas Inv. Prelim. Chart 21 [Available online from the USGS PubsWarehouse: http://pubs.er.usgs.gov/pubs/pp/pp259]


Summary:

Pg. 42. Aurora siltstone member of Orangeville shale adopted by the USGS. Composed predominantly of siltstone. At type locality, lies upon about 12 feet of grayish-black and very dark gray shale of the Orangeville which includes Sunbury member. Maximum thickness about 6 feet. Age is Mississippian.

Source: US geologic names lexicon (USGS Bull. 1200, p. 172-173).


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

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

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