Surprise Canyon Formation
E1583996
UNEXPLORED
The Surprise Canyon Formation is a Late Mississippian sedimentary rock unit in the Grand Canyon region, notable for its fluvial and marine deposits that fill paleovalleys incised into older strata.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Surprise Canyon Formation canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T23347448 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Surprise Canyon Formation Context triple: [Redwall Limestone, underlies, Surprise Canyon Formation]
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A.
Horseshoe Canyon Formation
The Horseshoe Canyon Formation is a Late Cretaceous geological formation in Alberta, Canada, renowned for its rich and diverse dinosaur fossil assemblages.
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B.
Poison Canyon Formation
The Poison Canyon Formation is a geologic rock unit in the Raton Basin of Colorado and New Mexico, known for its Paleocene-age fluvial sandstones, mudstones, and coal beds that record post-dinosaur terrestrial environments.
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C.
Bell Canyon Formation
The Bell Canyon Formation is a Permian-age sedimentary rock unit in the Delaware Basin of West Texas and southeastern New Mexico, notable for its deep-marine sandstones and shales that record the basin’s late Paleozoic geologic history.
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D.
Brushy Canyon Formation
The Brushy Canyon Formation is a Permian-age sedimentary rock unit in the Delaware Basin of West Texas and southeastern New Mexico, notable for its deep-water sandstone and siltstone deposits that form important hydrocarbon reservoirs.
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E.
Toroweap Formation
The Toroweap Formation is a Permian-age sedimentary rock unit of the southwestern United States, notable for its sandstone, limestone, and gypsum layers that form prominent cliffs and slopes in the Grand Canyon region.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Surprise Canyon Formation Target entity description: The Surprise Canyon Formation is a Late Mississippian sedimentary rock unit in the Grand Canyon region, notable for its fluvial and marine deposits that fill paleovalleys incised into older strata.
-
A.
Horseshoe Canyon Formation
The Horseshoe Canyon Formation is a Late Cretaceous geological formation in Alberta, Canada, renowned for its rich and diverse dinosaur fossil assemblages.
-
B.
Poison Canyon Formation
The Poison Canyon Formation is a geologic rock unit in the Raton Basin of Colorado and New Mexico, known for its Paleocene-age fluvial sandstones, mudstones, and coal beds that record post-dinosaur terrestrial environments.
-
C.
Bell Canyon Formation
The Bell Canyon Formation is a Permian-age sedimentary rock unit in the Delaware Basin of West Texas and southeastern New Mexico, notable for its deep-marine sandstones and shales that record the basin’s late Paleozoic geologic history.
-
D.
Brushy Canyon Formation
The Brushy Canyon Formation is a Permian-age sedimentary rock unit in the Delaware Basin of West Texas and southeastern New Mexico, notable for its deep-water sandstone and siltstone deposits that form important hydrocarbon reservoirs.
-
E.
Toroweap Formation
The Toroweap Formation is a Permian-age sedimentary rock unit of the southwestern United States, notable for its sandstone, limestone, and gypsum layers that form prominent cliffs and slopes in the Grand Canyon region.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.