U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Geologic Units: Ono
Map showing publication footprint
  • Usage in publication:
    • Ono formation
  • Modifications:
    • Named
  • Dominant lithology:
    • Mudstone
    • Siltstone
  • AAPG geologic province:
    • Sacramento basin
Publication:

Murphy, M.A., 1956, Lower Cretaceous stratigraphic units of northern California: American Association of Petroleum Geologists Bulletin, v. 40, no. 9, p. 2098-2119. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Named for village of Ono, Shasta Co, CA. Type section designated along North Fork of Cottonwood Creek from Ono to confluence of North Fork with Huling Creek, Ono 15' quad, Shasta Co, CA. Consists of approximately 4200 ft of mudstone, siltstone, conglomerate, graywacke, and limestone. Gradationally overlies Rector formation (new); underlies unnamed conglomerate units. Includes Huling and Roaring River tongues (both new). Age is Early Cretaceous based on fossils PERVINQUIERIA HULENANA and SHASTICRIOCERAS PONIENTE Zones, Horsetown Stage.

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


Map showing publication footprint
  • Usage in publication:
    • Ono Formation†
  • Modifications:
    • Abandoned
  • AAPG geologic province:
    • Sacramento basin
Publication:

Murphy, M.A., Peterson, G.L., and Rodda, P.U., 1964, Revision of Cretaceous lithostratigraphic nomenclature, northwest Sacramento Valley, California: American Association of Petroleum Geologists Bulletin, v. 48, no. 4, p. 496-502. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Ono Formation is abandoned because of new mapping. Rocks are now part of Budden Canyon Formation (new). Huling and Roaring River "tongues" are revised to Huling Sandstone Member and Roaring River Member of Budden Canyon Formation.

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 ([ ]).

Accessibility FOIA Privacy Policies and Notices

USA Gov U.S. Department of the Interior | U.S. Geological Survey
Supported by the National Cooperative Geologic Mapping Program
Page Contact Information: Personnel
Page Last Modified: Wed 12 Mar 2025 03:39:38 PM MDT