Hamersley Group
E912373
The Hamersley Group is a major sequence of ancient sedimentary and volcanic rocks in Western Australia renowned for its extensive banded iron formations and rich iron ore deposits.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hamersley Group canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T11192460 — 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: Hamersley Group Context triple: [Pilbara Craton, contains, Hamersley Group]
-
A.
Fortescue Group
The Fortescue Group is a major Neoarchean volcanic and sedimentary rock sequence in Western Australia’s Pilbara region, notable for its extensive greenstone belts and mineral resources.
-
B.
Rio Tinto
Rio Tinto is a leading global mining and metals company headquartered in the United Kingdom and Australia, known for producing iron ore, aluminum, copper, and other minerals.
-
C.
BHP Group
BHP Group is one of the world’s largest diversified mining and resources companies, producing commodities such as iron ore, copper, coal, and nickel.
-
D.
Anglo American plc
Anglo American plc is a major multinational mining company headquartered in London, known for producing commodities such as diamonds, copper, platinum, and iron ore.
-
E.
Mmakau Mining
Mmakau Mining is a South African mining company known for its black female leadership and involvement in various mineral resource projects across the country.
- 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: Hamersley Group Target entity description: The Hamersley Group is a major sequence of ancient sedimentary and volcanic rocks in Western Australia renowned for its extensive banded iron formations and rich iron ore deposits.
-
A.
Fortescue Group
The Fortescue Group is a major Neoarchean volcanic and sedimentary rock sequence in Western Australia’s Pilbara region, notable for its extensive greenstone belts and mineral resources.
-
B.
Rio Tinto
Rio Tinto is a leading global mining and metals company headquartered in the United Kingdom and Australia, known for producing iron ore, aluminum, copper, and other minerals.
-
C.
BHP Group
BHP Group is one of the world’s largest diversified mining and resources companies, producing commodities such as iron ore, copper, coal, and nickel.
-
D.
Anglo American plc
Anglo American plc is a major multinational mining company headquartered in London, known for producing commodities such as diamonds, copper, platinum, and iron ore.
-
E.
Mmakau Mining
Mmakau Mining is a South African mining company known for its black female leadership and involvement in various mineral resource projects across the country.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
geologic group
ⓘ
rock unit ⓘ stratigraphic unit ⓘ |
| approximateAgeMa | 2600–2400 ⓘ |
| contains |
banded iron formations
ⓘ
iron ore ⓘ |
| containsFormation |
Brockman Iron Formation
ⓘ
linked to:
Marra Mamba Iron Formation
Dales Gorge Member ⓘ
linked to:
Dales Gorge
Marra Mamba Iron Formation ⓘ Weeli Wolli Formation ⓘ
linked to:
Tumbiana Formation
|
| containsMineral |
goethite
ⓘ
hematite ⓘ magnetite ⓘ |
| country | Australia ⓘ |
| depositionalEnvironment |
marine
ⓘ
volcanic ⓘ |
| economicImportance |
important to Australian mining industry
ⓘ
major source of iron ore ⓘ |
| geologicAge |
Neoarchean
ⓘ
Paleoproterozoic ⓘ |
| geologicPeriod |
Archean
ⓘ
Paleoproterozoic ⓘ |
| hasStratigraphicThickness | more than 2500 m ⓘ |
| hostedIn | Hamersley Range ⓘ |
| knownFor |
extensive banded iron formations
ⓘ
rich iron ore deposits ⓘ |
| lithology |
banded iron formation
ⓘ
chert ⓘ dolomite ⓘ shale ⓘ volcanic rock ⓘ |
| locatedIn |
Hamersley Province
ⓘ
Western Australia ⓘ |
| minedIn |
Pilbara iron ore province
ⓘ
linked to:
Pilbara iron ore mines
|
| namedAfter | Hamersley Range ⓘ |
| oreType | banded iron formation–hosted iron ore ⓘ |
| overlies | Fortescue Group ⓘ |
| partOf |
Hamersley Basin
ⓘ
linked to:
Hamersley Range
Pilbara Craton ⓘ |
| region | Pilbara region ⓘ |
| resourceType | high‑grade iron ore ⓘ |
| significance | records early Earth atmospheric and ocean evolution ⓘ |
| studyField |
economic geology
ⓘ
sedimentology ⓘ stratigraphy ⓘ |
| tectonicSetting | stable cratonic basin ⓘ |
| underlies | Turee Creek Group ⓘ |
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: Hamersley Group Description of subject: The Hamersley Group is a major sequence of ancient sedimentary and volcanic rocks in Western Australia renowned for its extensive banded iron formations and rich iron ore deposits.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.