Kimmeridge Clay Formation
E918709
The Kimmeridge Clay Formation is a Late Jurassic marine sedimentary rock unit in southern England renowned for its organic-rich shales that form a major source rock for North Sea oil and gas.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Kimmeridge Clay Formation canonical | 7 |
How this entity was disambiguated
This entity first appeared as the object of triple T11305082 — 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: Kimmeridge Clay Formation Context triple: [Kimmeridge, hasGeologicalFeature, Kimmeridge Clay Formation]
-
A.
London Clay Formation
The London Clay Formation is an early Eocene marine clay deposit in southeast England, renowned for its rich fossil content and its importance in shaping the geology and engineering properties of the London area.
-
B.
Wessex Formation
The Wessex Formation is an Early Cretaceous geological formation in southern England renowned for its rich assemblage of dinosaur fossils, including numerous ornithopods and theropods.
-
C.
Kimmeridgian limestone
Kimmeridgian limestone is a fossil-rich Jurassic-era calcareous rock that forms the distinctive, mineral-driven terroir underlying many classic Chablis vineyards.
-
D.
Oxford Clay
Oxford Clay is a Jurassic-age marine sedimentary rock formation in England renowned for its exceptionally well-preserved fossils, especially marine reptiles and invertebrates.
-
E.
Kellaways Formation
The Kellaways Formation is a Middle Jurassic geological formation in England composed mainly of sandstones and mudstones, representing shallow marine and deltaic environments.
- 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: Kimmeridge Clay Formation Target entity description: The Kimmeridge Clay Formation is a Late Jurassic marine sedimentary rock unit in southern England renowned for its organic-rich shales that form a major source rock for North Sea oil and gas.
-
A.
London Clay Formation
The London Clay Formation is an early Eocene marine clay deposit in southeast England, renowned for its rich fossil content and its importance in shaping the geology and engineering properties of the London area.
-
B.
Wessex Formation
The Wessex Formation is an Early Cretaceous geological formation in southern England renowned for its rich assemblage of dinosaur fossils, including numerous ornithopods and theropods.
-
C.
Kimmeridgian limestone
Kimmeridgian limestone is a fossil-rich Jurassic-era calcareous rock that forms the distinctive, mineral-driven terroir underlying many classic Chablis vineyards.
-
D.
Oxford Clay
Oxford Clay is a Jurassic-age marine sedimentary rock formation in England renowned for its exceptionally well-preserved fossils, especially marine reptiles and invertebrates.
-
E.
Kellaways Formation
The Kellaways Formation is a Middle Jurassic geological formation in England composed mainly of sandstones and mudstones, representing shallow marine and deltaic environments.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
sedimentary rock unit ⓘ stratigraphic unit ⓘ |
| ageRange |
Kimmeridgian
ⓘ
Oxfordian ⓘ Tithonian ⓘ |
| belongsTo | Kimmeridgian Stage type area ⓘ |
| contains |
ammonite fossils
ⓘ
bituminous shales ⓘ bivalve fossils ⓘ cementstone bands ⓘ dinoflagellate cysts ⓘ foraminifera ⓘ fossil marine reptiles ⓘ high total organic carbon content ⓘ laminated shales ⓘ pyrite ⓘ |
| country | United Kingdom ⓘ |
| depositionalEnvironment |
marine
ⓘ
offshore shelf ⓘ |
| geologicAge | Late Jurassic ⓘ |
| hasColor |
black
ⓘ
dark grey ⓘ |
| hasProperty |
high hydrocarbon generation potential
ⓘ
high organic matter preservation ⓘ |
| is |
major source rock for North Sea gas
ⓘ
major source rock for North Sea oil ⓘ |
| lithology |
calcareous mudstone
ⓘ
limestone ⓘ mudstone ⓘ organic-rich shale ⓘ shale ⓘ siltstone ⓘ |
| namedFor | Kimmeridge ⓘ |
| outcropsAt |
Kimmeridge Bay
ⓘ
linked to:
Kimmeridge
|
| overlies |
Corallian Group
ⓘ
Oxford Clay Formation ⓘ
linked to:
Oxford Clay
|
| partOf |
Jurassic System
ⓘ
linked to:
Jurassic Period
|
| region | southern England ⓘ |
| sourceRockFor | North Sea hydrocarbon accumulations ⓘ |
| stratigraphicUnitOf |
North Sea Basin
ⓘ
linked to:
North Sea basin
|
| studiedIn |
palaeontology
ⓘ
petroleum geology ⓘ stratigraphy ⓘ |
| thickness | hundreds of metres ⓘ |
| underlies |
Portland Stone Formation
ⓘ
linked to:
Purbeck stone
|
| usedFor |
palaeoenvironmental reconstruction
ⓘ
petroleum system modeling ⓘ |
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: Kimmeridge Clay Formation Description of subject: The Kimmeridge Clay Formation is a Late Jurassic marine sedimentary rock unit in southern England renowned for its organic-rich shales that form a major source rock for North Sea oil and gas.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.