Ninnescah Shale
E945417
Ninnescah Shale is a geologic rock unit known for its shale deposits, typically associated with Permian-age sedimentary sequences in the central United States.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ninnescah Shale canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11766037 — 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: Ninnescah Shale Context triple: [Wellington Formation, underlies, Ninnescah Shale]
-
A.
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.
-
B.
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.
-
C.
Marcellus Shale
Marcellus Shale is a vast natural gas–rich sedimentary rock formation underlying much of the Appalachian Basin in the eastern United States, notably Pennsylvania, West Virginia, Ohio, and New York.
-
D.
Spraberry Formation
The Spraberry Formation is a major oil-bearing geologic unit in West Texas, renowned as one of the most prolific tight oil reservoirs within the Permian Basin.
-
E.
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.
- 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: Ninnescah Shale Target entity description: Ninnescah Shale is a geologic rock unit known for its shale deposits, typically associated with Permian-age sedimentary sequences in the central United States.
-
A.
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.
-
B.
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.
-
C.
Marcellus Shale
Marcellus Shale is a vast natural gas–rich sedimentary rock formation underlying much of the Appalachian Basin in the eastern United States, notably Pennsylvania, West Virginia, Ohio, and New York.
-
D.
Spraberry Formation
The Spraberry Formation is a major oil-bearing geologic unit in West Texas, renowned as one of the most prolific tight oil reservoirs within the Permian Basin.
-
E.
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.
- F. None of above. chosen
Statements (20)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
rock unit ⓘ stratigraphic unit ⓘ |
| composedPrimarilyOf | fine-grained siliciclastic sediments ⓘ |
| contains |
clay minerals
ⓘ
silt ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| depositionalEnvironment |
marine
ⓘ
sedimentary ⓘ |
| geologicAge | Permian ⓘ |
| geologicPeriod | Permian period NERFINISHED ⓘ |
| isPartOf | Permian stratigraphy of the central United States ⓘ |
| knownFor | shale deposits ⓘ |
| lithology | shale ⓘ |
| locatedIn | central United States NERFINISHED ⓘ |
| partOf | Permian sedimentary sequence ⓘ |
| primaryLithology | mudstone ⓘ |
| region | Midcontinent region ⓘ |
| rockType | sedimentary rock ⓘ |
| stratigraphicType | shale formation ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Ninnescah Shale Description of subject: Ninnescah Shale is a geologic rock unit known for its shale deposits, typically associated with Permian-age sedimentary sequences in the central United States.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.