Barakar Formation
E660092
Barakar Formation is a Permian-age sedimentary rock unit in the Indian Gondwana basins, notable for its extensive coal-bearing strata that form a major source of coal in regions like the Raniganj coalfield.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Barakar Formation canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7364872 — 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: Barakar Formation Context triple: [Raniganj coalfield, coalMeasure, Barakar Formation]
-
A.
Raniganj Formation
The Raniganj Formation is a major coal-bearing geological unit of the Gondwana sequence in eastern India, notable for its extensive bituminous coal seams and associated sedimentary rocks.
-
B.
Barun Goyot Formation
The Barun Goyot Formation is a Late Cretaceous sedimentary rock formation in Mongolia renowned for its rich fossil beds, including remains of the dinosaur Velociraptor.
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C.
Djadokhta Formation
The Djadokhta Formation is a Late Cretaceous sedimentary rock unit in Mongolia renowned for its exceptionally well-preserved dinosaur fossils, including iconic theropods and other desert-adapted fauna.
-
D.
Etchegoin Formation
The Etchegoin Formation is a geologic unit in California’s San Joaquin Basin known for its significant petroleum reservoirs, particularly in major fields such as the Belridge Oil Field.
-
E.
Areyonga Formation
The Areyonga Formation is a geological rock unit within central Australia's Amadeus Basin, known for its sedimentary sequences that record Proterozoic environmental and tectonic history.
- 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: Barakar Formation Target entity description: Barakar Formation is a Permian-age sedimentary rock unit in the Indian Gondwana basins, notable for its extensive coal-bearing strata that form a major source of coal in regions like the Raniganj coalfield.
-
A.
Raniganj Formation
The Raniganj Formation is a major coal-bearing geological unit of the Gondwana sequence in eastern India, notable for its extensive bituminous coal seams and associated sedimentary rocks.
-
B.
Barun Goyot Formation
The Barun Goyot Formation is a Late Cretaceous sedimentary rock formation in Mongolia renowned for its rich fossil beds, including remains of the dinosaur Velociraptor.
-
C.
Djadokhta Formation
The Djadokhta Formation is a Late Cretaceous sedimentary rock unit in Mongolia renowned for its exceptionally well-preserved dinosaur fossils, including iconic theropods and other desert-adapted fauna.
-
D.
Etchegoin Formation
The Etchegoin Formation is a geologic unit in California’s San Joaquin Basin known for its significant petroleum reservoirs, particularly in major fields such as the Belridge Oil Field.
-
E.
Areyonga Formation
The Areyonga Formation is a geological rock unit within central Australia's Amadeus Basin, known for its sedimentary sequences that record Proterozoic environmental and tectonic history.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
sedimentary rock unit ⓘ |
| ageRange | approximately 299–272 million years ago ⓘ |
| belongsToBasin |
Damodar Valley basins
NERFINISHED
ⓘ
Son–Mahanadi basins NERFINISHED ⓘ |
| coalRank | generally high-volatile bituminous ⓘ |
| containsFossil | plant fossils ⓘ |
| containsResource |
bituminous coal
ⓘ
clay ⓘ sand ⓘ |
| country | India ⓘ |
| depositionalEnvironment |
deltaic
ⓘ
fluvial ⓘ |
| economicImportance | major coal-bearing formation in India ⓘ |
| geologicAge | Permian ⓘ |
| geologicPeriod | Early Permian ⓘ |
| hasMember |
carbonaceous shales
ⓘ
coal seams ⓘ cross-bedded sandstones ⓘ |
| importanceFor | Indian coal industry ⓘ |
| lithology |
coal
ⓘ
sandstone ⓘ shale ⓘ |
| locatedIn | Indian Gondwana basins ⓘ |
| majorCoalField |
Bokaro coalfield
NERFINISHED
ⓘ
Jharia coalfield NERFINISHED ⓘ Karanpura coalfield NERFINISHED ⓘ Raniganj coalfield NERFINISHED ⓘ Talcher coalfield NERFINISHED ⓘ |
| namedAfter | Barakar River NERFINISHED ⓘ |
| partOf | Gondwana Supergroup NERFINISHED ⓘ |
| regionalExtent |
central India
ⓘ
eastern India NERFINISHED ⓘ |
| researchField |
paleobotany
ⓘ
sedimentology ⓘ stratigraphy ⓘ |
| stratigraphicPosition |
lies above Talchir Formation
ⓘ
underlies Barren Measures Formation NERFINISHED ⓘ |
| tectonicSetting | Gondwana rift basins NERFINISHED ⓘ |
| thickness | hundreds of meters ⓘ |
| usedFor | coal mining ⓘ |
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: Barakar Formation Description of subject: Barakar Formation is a Permian-age sedimentary rock unit in the Indian Gondwana basins, notable for its extensive coal-bearing strata that form a major source of coal in regions like the Raniganj coalfield.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.