Harper Sandstone
E945418
Harper Sandstone is a geologic rock formation known for its sandstone layers that record ancient depositional environments in the regional stratigraphic sequence.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Harper Sandstone canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11766038 — 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: Harper Sandstone Context triple: [Wellington Formation, underlies, Harper Sandstone]
-
A.
Bunter Sandstone
Bunter Sandstone is a Lower Triassic sedimentary rock formation in central Europe, characterized by its colorful, layered sandstones that form prominent landscapes and are important for regional geology and groundwater reservoirs.
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B.
New Brunswick sandstone
New Brunswick sandstone is a durable, reddish-brown building stone historically quarried in New Jersey and widely used in 19th-century American architecture and monuments.
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C.
Wallace sandstone
Wallace sandstone is a high-quality building stone from Wallace, Nova Scotia, historically prized for its durability and distinctive appearance in construction.
-
D.
Hermannsburg Sandstone
Hermannsburg Sandstone is a geological rock formation within Australia’s Amadeus Basin, notable for its extensive sandstone deposits that record ancient sedimentary environments.
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E.
Nugget Sandstone
Nugget Sandstone is a prominent Jurassic-age sandstone unit of the western United States, best known for its extensive eolian (wind-deposited) dune deposits and its role as a significant reservoir rock in regional geology.
- 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: Harper Sandstone Target entity description: Harper Sandstone is a geologic rock formation known for its sandstone layers that record ancient depositional environments in the regional stratigraphic sequence.
-
A.
Bunter Sandstone
Bunter Sandstone is a Lower Triassic sedimentary rock formation in central Europe, characterized by its colorful, layered sandstones that form prominent landscapes and are important for regional geology and groundwater reservoirs.
-
B.
New Brunswick sandstone
New Brunswick sandstone is a durable, reddish-brown building stone historically quarried in New Jersey and widely used in 19th-century American architecture and monuments.
-
C.
Wallace sandstone
Wallace sandstone is a high-quality building stone from Wallace, Nova Scotia, historically prized for its durability and distinctive appearance in construction.
-
D.
Hermannsburg Sandstone
Hermannsburg Sandstone is a geological rock formation within Australia’s Amadeus Basin, notable for its extensive sandstone deposits that record ancient sedimentary environments.
-
E.
Nugget Sandstone
Nugget Sandstone is a prominent Jurassic-age sandstone unit of the western United States, best known for its extensive eolian (wind-deposited) dune deposits and its role as a significant reservoir rock in regional geology.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
sedimentary rock unit ⓘ |
| composedPrimarilyOf | sand-sized clastic particles ⓘ |
| contains |
bedding planes
ⓘ
sedimentary structures ⓘ |
| depositionalEnvironment | ancient sedimentary basin setting ⓘ |
| hasComponent |
mineral grains
ⓘ
rock fragments ⓘ sand grains ⓘ |
| hasProperty |
layered
ⓘ
records geologic history ⓘ stratified ⓘ |
| hasStratigraphicSignificance |
records paleoenvironmental conditions
ⓘ
used for regional correlation ⓘ |
| isPartOf | sedimentary rock record ⓘ |
| lithology | sandstone ⓘ |
| partOf | regional stratigraphic sequence ⓘ |
| primaryLithology | sandstone ⓘ |
| records | ancient depositional environments ⓘ |
| rockType | clastic sedimentary rock ⓘ |
| studiedIn |
paleoenvironmental reconstruction
ⓘ
sedimentology ⓘ stratigraphy ⓘ |
| usedFor |
interpreting depositional environments
ⓘ
regional geologic mapping ⓘ subsurface correlation in stratigraphic studies ⓘ |
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: Harper Sandstone Description of subject: Harper Sandstone is a geologic rock formation known for its sandstone layers that record ancient depositional environments in the regional stratigraphic sequence.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.