Carboniferous Limestone
E159012
Carboniferous Limestone is a thick sequence of fossil-rich sedimentary rocks formed in warm, shallow tropical seas during the Carboniferous period, widely exposed in regions such as the White Peak of the Peak District.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Carboniferous Limestone canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T1375434 — 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: Carboniferous Limestone Context triple: [White Peak, geology, Carboniferous Limestone]
-
A.
Bedford limestone
Bedford limestone is a high-quality, fine-grained building stone from southern Indiana widely used in prominent architectural landmarks across the United States.
-
B.
Kimmeridgian limestone
Kimmeridgian limestone is a fossil-rich Jurassic-era calcareous rock that forms the distinctive, mineral-driven terroir underlying many classic Chablis vineyards.
-
C.
Tura limestone
Tura limestone is a fine white Egyptian limestone historically prized for its high quality and used as the outer casing stone for major monuments such as the Great Pyramid of Giza.
-
D.
Anston limestone
Anston limestone is a durable, fine-grained building stone from Anston in South Yorkshire, England, historically quarried for major 19th-century architectural projects.
-
E.
Old Red Sandstone
Old Red Sandstone is a thick sequence of Devonian-age sedimentary rocks, notable for its red coloration and widespread occurrence across parts of Scotland and other regions of the North Atlantic.
- 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: Carboniferous Limestone Target entity description: Carboniferous Limestone is a thick sequence of fossil-rich sedimentary rocks formed in warm, shallow tropical seas during the Carboniferous period, widely exposed in regions such as the White Peak of the Peak District.
-
A.
Bedford limestone
Bedford limestone is a high-quality, fine-grained building stone from southern Indiana widely used in prominent architectural landmarks across the United States.
-
B.
Kimmeridgian limestone
Kimmeridgian limestone is a fossil-rich Jurassic-era calcareous rock that forms the distinctive, mineral-driven terroir underlying many classic Chablis vineyards.
-
C.
Tura limestone
Tura limestone is a fine white Egyptian limestone historically prized for its high quality and used as the outer casing stone for major monuments such as the Great Pyramid of Giza.
-
D.
Anston limestone
Anston limestone is a durable, fine-grained building stone from Anston in South Yorkshire, England, historically quarried for major 19th-century architectural projects.
-
E.
Old Red Sandstone
Old Red Sandstone is a thick sequence of Devonian-age sedimentary rocks, notable for its red coloration and widespread occurrence across parts of Scotland and other regions of the North Atlantic.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
carbonate rock
ⓘ
limestone ⓘ sedimentary rock unit ⓘ |
| age | Paleozoic ⓘ |
| ageInMillionsOfYears | approximately 359 to 299 Ma ⓘ |
| associatedLandforms |
caves
ⓘ
dry valleys ⓘ gorges ⓘ karst ⓘ limestone pavements ⓘ |
| climateOfFormation |
humid
ⓘ
tropical ⓘ |
| depositionalSetting |
carbonate platform
ⓘ
epicontinental sea ⓘ |
| diageneticFeatures |
cementation
ⓘ
stylolites ⓘ |
| dissolutionFeature |
sinkholes
ⓘ
swallow holes ⓘ |
| economicUse |
aggregate
ⓘ
building stone ⓘ cement manufacture ⓘ industrial minerals ⓘ lime production ⓘ |
| environmentOfDeposition |
tropical shelf sea
ⓘ
warm shallow marine ⓘ |
| geographicDistribution |
British Isles
ⓘ
parts of North America ⓘ western Europe ⓘ
linked to:
Western Europe
|
| geologicalPeriod |
Carboniferous
ⓘ
linked to:
Carboniferous period
|
| notableExposure |
Brecon Beacons, South Wales
ⓘ
linked to:
Brecon Beacons in Wales
Derbyshire Peak District ⓘ
linked to:
Peak District
Mendip Hills, England ⓘ
linked to:
Mendip Hills
South Wales Coalfield margins ⓘ
linked to:
South Wales Coal Measures
White Peak, Peak District, England ⓘ Yorkshire Dales, England ⓘ
linked to:
Yorkshire Dales
|
| porosityType |
fracture porosity
ⓘ
karstic porosity ⓘ |
| primaryComposition | calcium carbonate ⓘ |
| primaryMineral | calcite ⓘ |
| rockType | fossiliferous limestone ⓘ |
| stratigraphicPosition |
overlies Devonian rocks in many successions
ⓘ
underlies Millstone Grit in many successions ⓘ |
| texture |
bedded
ⓘ
massive ⓘ |
| typicalColour |
blue-grey
ⓘ
grey ⓘ |
| typicalFossils |
brachiopods
ⓘ
corals ⓘ crinoids ⓘ foraminifera ⓘ |
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: Carboniferous Limestone Description of subject: Carboniferous Limestone is a thick sequence of fossil-rich sedimentary rocks formed in warm, shallow tropical seas during the Carboniferous period, widely exposed in regions such as the White Peak of the Peak District.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.