Maastricht Formation in the Netherlands
E364218
The Maastricht Formation in the Netherlands is a Late Cretaceous marine sedimentary rock unit, famous for its rich fossil content and as the namesake of the Maastrichtian stage.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Maastricht Formation in the Netherlands canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3502497 — 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: Maastricht Formation in the Netherlands Context triple: [Maastrichtian, lithostratigraphicCorrelation, Maastricht Formation in the Netherlands]
-
A.
Grootegast, Netherlands
Grootegast, Netherlands is a small village in the province of Groningen, known as the birthplace of the Christian philosopher and theologian Cornelius Van Til.
-
B.
Southwestern Netherlands
Southwestern Netherlands is a coastal region of the Netherlands characterized by its delta landscapes, estuaries, and extensive water management and flood protection works.
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C.
Grave, Netherlands
Grave is a historic town in the Dutch province of North Brabant, known for its well-preserved medieval center and fortifications along the Maas River.
-
D.
Drenthe, Netherlands
Drenthe, Netherlands is a rural northeastern Dutch province known for its prehistoric dolmen tombs, extensive nature reserves, and quiet agricultural landscapes.
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E.
Zundert, Netherlands
Zundert, Netherlands is a small Dutch town in North Brabant best known as the birthplace of painter Vincent van Gogh.
- 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: Maastricht Formation in the Netherlands Target entity description: The Maastricht Formation in the Netherlands is a Late Cretaceous marine sedimentary rock unit, famous for its rich fossil content and as the namesake of the Maastrichtian stage.
-
A.
Grootegast, Netherlands
Grootegast, Netherlands is a small village in the province of Groningen, known as the birthplace of the Christian philosopher and theologian Cornelius Van Til.
-
B.
Southwestern Netherlands
Southwestern Netherlands is a coastal region of the Netherlands characterized by its delta landscapes, estuaries, and extensive water management and flood protection works.
-
C.
Grave, Netherlands
Grave is a historic town in the Dutch province of North Brabant, known for its well-preserved medieval center and fortifications along the Maas River.
-
D.
Drenthe, Netherlands
Drenthe, Netherlands is a rural northeastern Dutch province known for its prehistoric dolmen tombs, extensive nature reserves, and quiet agricultural landscapes.
-
E.
Zundert, Netherlands
Zundert, Netherlands is a small Dutch town in North Brabant best known as the birthplace of painter Vincent van Gogh.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
sedimentary rock unit ⓘ |
| ageRange | latest Cretaceous ⓘ |
| carbonateContent | high ⓘ |
| chronostratigraphicUnit | Upper Cretaceous ⓘ |
| color | white ⓘ |
| containsFossil |
ammonites
ⓘ
bivalves ⓘ bony fishes ⓘ bryozoans ⓘ crustaceans ⓘ dinoflagellate cysts ⓘ echinoderms ⓘ foraminifera ⓘ gastropods ⓘ invertebrates ⓘ marine turtles ⓘ mosasaurs ⓘ plesiosaurs ⓘ sharks ⓘ sponges ⓘ |
| country | Netherlands ⓘ |
| depositionalBasin | southern Netherlands ⓘ |
| environmentOfDeposition | shallow marine ⓘ |
| exposedNear | ENCI quarry ⓘ |
| fossilPreservation | good ⓘ |
| fossilRich | true ⓘ |
| fossilTypeLocalityFor |
Mosasaurus
ⓘ
surface form:
Mosasaurus hoffmanni
|
| geologicAge | Maastrichtian ⓘ |
| geologicPeriod | Late Cretaceous ⓘ |
| hasEconomicUse |
building stone
ⓘ
cement production ⓘ |
| knownFor |
abundant marine fossils
ⓘ
type area of the Maastrichtian stage ⓘ |
| lithology |
chalk
ⓘ
limestone ⓘ marl ⓘ |
| namedAfter | Maastricht ⓘ |
| overlies | Gulpen Formation ⓘ |
| paleogeography | epicontinental sea ⓘ |
| partOf |
North Sea rift system
ⓘ
surface form:
North Sea Basin succession
|
| porosity | high ⓘ |
| region | Limburg ⓘ |
| researchImportance | Cretaceous–Paleogene transition studies ⓘ |
| stratigraphicRank | formation ⓘ |
| stratotypeOf | Maastrichtian ⓘ |
| typeLocality |
Maastricht region
ⓘ
surface form:
Maastricht area
|
| underlies | Paleogene deposits ⓘ |
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: Maastricht Formation in the Netherlands Description of subject: The Maastricht Formation in the Netherlands is a Late Cretaceous marine sedimentary rock unit, famous for its rich fossil content and as the namesake of the Maastrichtian stage.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.