Sherwood Sandstone Group
E464660
The Sherwood Sandstone Group is a major Triassic sandstone rock sequence in the UK, notable as an important aquifer and hydrocarbon reservoir across several sedimentary basins.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Sherwood Sandstone Group canonical | 5 |
| Bromsgrove Sandstone Formation | 1 |
| Bunter Sandstone Group | 1 |
| Ormskirk Sandstone Formation | 1 |
| Otter Sandstone Formation | 1 |
| Tarporley Siltstone Formation | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4731516 — 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: Sherwood Sandstone Group Context triple: [Cheshire Basin, contains, Sherwood Sandstone Group]
-
A.
Yorkshire Jurassic limestone belt
The Yorkshire Jurassic limestone belt is a geological formation in northern England characterized by extensive Jurassic-age limestone deposits that have historically been quarried for building stone and industrial use.
-
B.
Millstone Grit
Millstone Grit is a coarse-grained Carboniferous sandstone formation in northern England, notably forming the rugged moorland landscapes of the Pennines.
-
C.
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.
-
D.
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.
-
E.
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.
- 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: Sherwood Sandstone Group Target entity description: The Sherwood Sandstone Group is a major Triassic sandstone rock sequence in the UK, notable as an important aquifer and hydrocarbon reservoir across several sedimentary basins.
-
A.
Yorkshire Jurassic limestone belt
The Yorkshire Jurassic limestone belt is a geological formation in northern England characterized by extensive Jurassic-age limestone deposits that have historically been quarried for building stone and industrial use.
-
B.
Millstone Grit
Millstone Grit is a coarse-grained Carboniferous sandstone formation in northern England, notably forming the rugged moorland landscapes of the Pennines.
-
C.
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.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Triassic rock unit
ⓘ
lithostratigraphic group ⓘ sandstone formation ⓘ |
| aquiferRole | major regional aquifer ⓘ |
| color |
brown
ⓘ
buff ⓘ red ⓘ |
| country | United Kingdom ⓘ |
| depositionalEnvironment |
aeolian
ⓘ
fluvial ⓘ |
| diageneticFeatures |
cementation by calcite
ⓘ
cementation by dolomite ⓘ hematite coating of grains ⓘ |
| economicImportance |
gas reservoir
ⓘ
groundwater resource ⓘ oil reservoir ⓘ |
| geologicalAge | Triassic ⓘ |
| geologicalPeriod |
Early Triassic
ⓘ
linked to:
Triassic
Middle Triassic ⓘ |
| grainSize |
fine-grained sandstone
ⓘ
medium-grained sandstone ⓘ |
| hasSubunits |
Bromsgrove Sandstone Formation
ⓘ
linked to:
Sherwood Sandstone Group
Bunter Sandstone Formation ⓘ Ormskirk Sandstone Formation ⓘ
linked to:
Sherwood Sandstone Group
Otter Sandstone Formation ⓘ
linked to:
Sherwood Sandstone Group
St Bees Sandstone Formation ⓘ |
| hydrocarbonRole | important hydrocarbon reservoir ⓘ |
| lithology |
conglomerate
ⓘ
sandstone ⓘ siltstone ⓘ |
| notableBasin |
Cheshire Basin
ⓘ
Cleveland Basin ⓘ East Irish Sea Basin ⓘ
linked to:
East Irish Sea Basin system
East Midlands Shelf ⓘ Wessex Basin ⓘ |
| occursIn |
England
ⓘ
Ireland ⓘ Wales ⓘ offshore UK sector of the North Sea ⓘ |
| partOf | New Red Sandstone Supergroup ⓘ |
| porosityType | primary intergranular porosity ⓘ |
| primaryLithology | fluvial sandstone ⓘ |
| recognizedBy | British Geological Survey ⓘ |
| stratigraphicPositionOverlies |
Permian rocks
ⓘ
Zechstein Group ⓘ |
| stratigraphicPositionUnderlies | Mercia Mudstone Group ⓘ |
| typicalThickness | hundreds of metres ⓘ |
| usedFor |
industrial water supply
ⓘ
public water supply ⓘ |
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: Sherwood Sandstone Group Description of subject: The Sherwood Sandstone Group is a major Triassic sandstone rock sequence in the UK, notable as an important aquifer and hydrocarbon reservoir across several sedimentary basins.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Sherwood Sandstone Group
linked to: Sherwood Sandstone Group
linked to: Sherwood Sandstone Group
linked to: Sherwood Sandstone Group
Monographie des Bunten Sandsteins, Muschelkalks und Keupers
→
geologicalUnitsDescribed
→
Bunter Sandstone Group
ⓘ
linked to: Sherwood Sandstone Group