Diablo Formation
E614193
The Diablo Formation is a geologic rock unit in California known as a significant petroleum-bearing reservoir within fields such as the Belridge Oil Field.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Diablo Formation canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6706559 — 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: Diablo Formation Context triple: [Belridge Oil Field, primaryProducingFormation, Diablo Formation]
-
A.
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.
-
B.
Claron Formation
The Claron Formation is a geologic rock unit of colorful limestones and mudstones best known for forming the striking hoodoos and cliffs of Bryce Canyon and other parts of the Paunsaugunt Plateau in southern Utah.
-
C.
Vermejo Formation
The Vermejo Formation is a Late Cretaceous sedimentary rock unit in the Raton Basin of the western United States, known for its coal-bearing strata and significance in regional stratigraphy.
-
D.
Carmel Formation
The Carmel Formation is a Middle Jurassic geologic unit of the western United States, characterized by marine and marginal-marine sediments that record a transition from desert dune environments to shallow seas.
-
E.
Kayenta Formation
The Kayenta Formation is an Early Jurassic sandstone and siltstone rock unit on the Colorado Plateau, renowned for its distinctive red cliffs and important dinosaur fossil trackways.
- 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: Diablo Formation Target entity description: The Diablo Formation is a geologic rock unit in California known as a significant petroleum-bearing reservoir within fields such as the Belridge Oil Field.
-
A.
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.
-
B.
Claron Formation
The Claron Formation is a geologic rock unit of colorful limestones and mudstones best known for forming the striking hoodoos and cliffs of Bryce Canyon and other parts of the Paunsaugunt Plateau in southern Utah.
-
C.
Vermejo Formation
The Vermejo Formation is a Late Cretaceous sedimentary rock unit in the Raton Basin of the western United States, known for its coal-bearing strata and significance in regional stratigraphy.
-
D.
Carmel Formation
The Carmel Formation is a Middle Jurassic geologic unit of the western United States, characterized by marine and marginal-marine sediments that record a transition from desert dune environments to shallow seas.
-
E.
Kayenta Formation
The Kayenta Formation is an Early Jurassic sandstone and siltstone rock unit on the Colorado Plateau, renowned for its distinctive red cliffs and important dinosaur fossil trackways.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
rock unit ⓘ |
| associatedWith |
stratigraphic traps
ⓘ
structural traps ⓘ |
| basin | San Joaquin Valley NERFINISHED ⓘ |
| contains |
fossil assemblages typical of Cenozoic marine environments
ⓘ
petroleum reservoir rocks ⓘ |
| containsResource |
natural gas
ⓘ
oil ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| depositionalEnvironment |
marine
ⓘ
shallow marine shelf ⓘ |
| economicImportance |
hydrocarbon reservoir
ⓘ
petroleum production ⓘ |
| geologicAge |
Cenozoic
NERFINISHED
ⓘ
Tertiary ⓘ |
| hasProperty |
significant permeability in reservoir intervals
ⓘ
significant porosity in reservoir intervals ⓘ |
| hasSignificance |
important for California oil industry
ⓘ
major reservoir interval in Belridge Oil Field ⓘ |
| isReservoirFor |
Belridge Oil Field
NERFINISHED
ⓘ
Lost Hills Oil Field NERFINISHED ⓘ other San Joaquin Basin oil fields ⓘ |
| lithology |
conglomerate
ⓘ
sandstone ⓘ shale ⓘ siltstone ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Coalinga area ⓘ Diablo Range NERFINISHED ⓘ San Joaquin Basin NERFINISHED ⓘ |
| namedAfter | Diablo Range NERFINISHED ⓘ |
| overlies | older Mesozoic basement rocks ⓘ |
| partOf |
Cenozoic stratigraphy of California
ⓘ
petroleum system of the San Joaquin Basin ⓘ |
| region | Central California NERFINISHED ⓘ |
| rockTypeGroup | clastic sedimentary rocks ⓘ |
| studiedIn |
petroleum geology
ⓘ
stratigraphy ⓘ |
| underlies | younger Cenozoic formations ⓘ |
| usedFor | subsurface correlation in oil fields ⓘ |
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: Diablo Formation Description of subject: The Diablo Formation is a geologic rock unit in California known as a significant petroleum-bearing reservoir within fields such as the Belridge Oil Field.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.