Gable Creek Formation
The Gable Creek Formation is a sedimentary rock formation from the Albian age of the Early Cretaceous.[1] The formation is in Wheeler County, Oregon of the United States of America and is intertongued with the similarly aged Hudspeth Formation. The formation mostly consists of fluvial-deltaic sandstones and conglomerates.[2] Marine fossils can be found throughout the formation including various species of ammonites, clams and other mollusks. The Gable Creek Formation gets its name from Gable Creek, a creek that runs through much of the formation.
| Gable Creek Formation Stratigraphic range: Albian ~113–100 Ma | |
|---|---|
| Type | Geological formation |
| Unit of | Mitchell Group |
| Lithology | |
| Primary | Sandstone, conglomerate |
| Location | |
| Coordinates | 44.5°N 120.1°W |
| Region | Pacific Northwest Oregon |
| Country |  United States |
| Extent | Wheeler County |
| Type section | |
| Named for | Gable Creek |
  Gable Creek Formation (the United States)  Gable Creek Formation (Oregon) | |
Fossil content
| Ammonites of the Gable Creek Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Desmoceras | D. alamoense | Oregon | shell[3] | D. alamoense can be found in the nearby Hudspeth Formation as well |  | |
| D. voyi | Oregon | |||||
| D. berryae | Oregon | |||||
| Anisoceras | A. merriami | Oregon | ||||
| Tetragonites | T. timotheus | Oregon | ||||
| Oxytropidoceras | O. packardi | Oregon | ||||
| Lechites | L. gaudini | Oregon | ||||
| Mortoniceras | M. perinflatum | Oregon |  Mortoniceras inflatum | |||
| Tragodesmoceras | T. ashlandicum | Oregon | ||||
| Binneyites | B. parkensis | Oregon | ||||
Other invertebrates
| Non-ammonite invertebrates of the Gable Creek Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Yaadia | Y. whiteavesi | Oregon | ||||
| Y. leana | Oregon | A common species in the Gable Creek Formation | ||||
| Volutoderma | V. blakei | Oregon | ||||
| Lunatia | L. halli | Oregon | ||||
| Natica | N. allisoni | Oregon | ||||
| Pseudomelania | P. colusaensis | Oregon | ||||
| Turritella | T. hearni | Oregon | ||||
| Trochacteon | T. allisoni | Oregon | ||||
| Nerinea | N. stewarti | Oregon | ||||
| Cucullaea | C. truncata | Oregon | external molds and clam shells | |||
| Parallelodon | P. brewereanus | Oregon | ||||
| Pachycardium | P. remondianum | Oregon | ||||
| Corbula | C. parilis | Oregon | ||||
| Volsella | V. sikiyouensis | Oregon | ||||
| Nucula | N. truncata | Oregon | ||||
| Acila | A. demessa | Oregon | ||||
| Aucellina | A. dawlingi | Oregon | ||||
| Syncyclonema | S. latum | Oregon | ||||
| Cercomya | C. hesperia | Oregon | ||||
| Periplomya | P. oregonensis | Oregon | ||||
| Pterotrigonia | P. evansana | Oregon | Clam shells in various states of preservation |  Pterotrigonia caudata | ||
| Tenea | T. inflata | Oregon | ||||
| Anatina | A. tryoniana | Oregon | ||||
| Cymbophora | C. gabbiana | Oregon | ||||
| Solecurtus | S. chapmani | Oregon | ||||
| Meekia | M. chapmani | Oregon | ||||
| Tellina | T. paralis | Oregon | ||||
| Calva | C. nitida | Oregon | ||||
| Flaventia | F. zeta | Oregon | ||||
| Venus | Indeterminate | Oregon | ||||
| Terebratella | T. allisoni | Oregon | ||||
| Dentalium | D. californianum | Oregon | ||||
See also
References
- "Gable Creek Formation - John Day Fossil Beds National Monument (U.S. National Park Service)". www.nps.gov. U.S.: U.S. National Park Service. Retrieved 2020-07-04.
- "BEDROCK GEOLOGY OF THE MITCHELL QUADRANGLE, WHEELER COUNTY, OREGON" (PDF). 1971. Retrieved July 4, 2020.
- "Condon Collection's Searchable Database". Retrieved July 4, 2020.
External links
- "Geolex — Hudspeth publications". ngmdb.usgs.gov. United States: United States Postal Service. Retrieved 2020-07-04.
- Sedimentary rocks of Oregon - Hudspeth & Gable Creek Formations
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