Mancos Shale
E1541484
UNEXPLORED
Mancos Shale is a widespread Late Cretaceous marine shale formation in the western United States, notable for its fine-grained sediments and fossil-rich strata.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mancos Shale canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T22548886 — 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: Mancos Shale Context triple: [Waterpocket Fold, composedOf, Mancos Shale]
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A.
Thermopolis Shale
Thermopolis Shale is a Cretaceous-age marine shale formation in the Western Interior of North America, notable for its dark, fossil-bearing mudstones deposited in the Western Interior Seaway.
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B.
Ninnescah Shale
Ninnescah Shale is a geologic rock unit known for its shale deposits, typically associated with Permian-age sedimentary sequences in the central United States.
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C.
Sundance Formation
The Sundance Formation is a Middle to Late Jurassic marine sedimentary rock unit in the western United States, known for its shallow sea deposits that underlie the dinosaur-rich Morrison Formation.
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D.
Barnett Shale
Barnett Shale is a major natural gas-bearing geological formation in North Texas that became a landmark site for the development of modern shale gas extraction techniques.
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E.
Graneros Shale
Graneros Shale is a Cretaceous-age marine shale formation in the central United States, notable for recording the early transgression of the Western Interior Seaway and for its fossil-rich, fine-grained sediments.
- 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: Mancos Shale Target entity description: Mancos Shale is a widespread Late Cretaceous marine shale formation in the western United States, notable for its fine-grained sediments and fossil-rich strata.
-
A.
Thermopolis Shale
Thermopolis Shale is a Cretaceous-age marine shale formation in the Western Interior of North America, notable for its dark, fossil-bearing mudstones deposited in the Western Interior Seaway.
-
B.
Ninnescah Shale
Ninnescah Shale is a geologic rock unit known for its shale deposits, typically associated with Permian-age sedimentary sequences in the central United States.
-
C.
Sundance Formation
The Sundance Formation is a Middle to Late Jurassic marine sedimentary rock unit in the western United States, known for its shallow sea deposits that underlie the dinosaur-rich Morrison Formation.
-
D.
Barnett Shale
Barnett Shale is a major natural gas-bearing geological formation in North Texas that became a landmark site for the development of modern shale gas extraction techniques.
-
E.
Graneros Shale
Graneros Shale is a Cretaceous-age marine shale formation in the central United States, notable for recording the early transgression of the Western Interior Seaway and for its fossil-rich, fine-grained sediments.
- F. None of above. chosen
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.