Motonori Matuyama
E675177
Motonori Matuyama was a Japanese geophysicist and geologist renowned for his pioneering work on geomagnetic field reversals and paleomagnetism.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Motonori Matuyama canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T7581723 — 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: Motonori Matuyama Context triple: [Gauss–Matuyama geomagnetic reversal, namedAfter, Motonori Matuyama]
-
A.
Harukichi Hyakutake
Harukichi Hyakutake was a Japanese lieutenant general who led the Seventeenth Army in the Solomon Islands campaign during World War II, including the battles around Guadalcanal.
-
B.
Susumu Okubo
Susumu Okubo is a Japanese theoretical physicist best known for his contributions to particle physics and symmetry principles, including the Gell-Mann–Okubo mass formula.
-
C.
Yuji Hyakutake
Yuji Hyakutake was a Japanese amateur astronomer best known for discovering the bright long-period Comet Hyakutake (C/1996 B2), which became one of the most spectacular comets of the late 20th century.
-
D.
Akihiro Manabe
Akihiro Manabe is a Japanese composer best known for his award-winning work on the soundtrack of the game Death Stranding.
-
E.
Tadahiko Mibuchi
Tadahiko Mibuchi was a Japanese jurist who became the first person to serve as Chief Justice of Japan.
- 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: Motonori Matuyama Target entity description: Motonori Matuyama was a Japanese geophysicist and geologist renowned for his pioneering work on geomagnetic field reversals and paleomagnetism.
-
A.
Harukichi Hyakutake
Harukichi Hyakutake was a Japanese lieutenant general who led the Seventeenth Army in the Solomon Islands campaign during World War II, including the battles around Guadalcanal.
-
B.
Susumu Okubo
Susumu Okubo is a Japanese theoretical physicist best known for his contributions to particle physics and symmetry principles, including the Gell-Mann–Okubo mass formula.
-
C.
Yuji Hyakutake
Yuji Hyakutake was a Japanese amateur astronomer best known for discovering the bright long-period Comet Hyakutake (C/1996 B2), which became one of the most spectacular comets of the late 20th century.
-
D.
Akihiro Manabe
Akihiro Manabe is a Japanese composer best known for his award-winning work on the soundtrack of the game Death Stranding.
-
E.
Tadahiko Mibuchi
Tadahiko Mibuchi was a Japanese jurist who became the first person to serve as Chief Justice of Japan.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
geophysicist
ⓘ
human ⓘ |
| academicDiscipline |
Earth science
ⓘ
solid Earth geophysics ⓘ |
| contributedTo |
development of the geomagnetic polarity timescale
ⓘ
establishing the existence of long intervals of reversed geomagnetic polarity ⓘ |
| countryOfCitizenship | Japan ⓘ |
| era | 20th century ⓘ |
| familyName | Matuyama ⓘ |
| fieldOfWork |
geology
ⓘ
geophysics ⓘ paleomagnetism ⓘ |
| givenName | Motonori ⓘ |
| hasHonorificEponym |
Matuyama reversed chron
ⓘ
Matuyama–Brunhes boundary ⓘ
linked to:
Gauss–Matuyama geomagnetic reversal
|
| hasResearchArea |
Earth sciences
ⓘ
geomagnetic polarity ⓘ magnetism of rocks ⓘ |
| influenced |
later research in geomagnetism
ⓘ
later research in plate tectonics ⓘ |
| knownFor |
identification of a period of reversed geomagnetic polarity now called the Matuyama reversed chron
ⓘ
pioneering work in paleomagnetism ⓘ research on geomagnetic field reversals ⓘ |
| languageOfWorkOrName | Japanese ⓘ |
| name | Motonori Matuyama ⓘ |
| nationality | Japanese ⓘ |
| notableConcept |
Matuyama reversed chron
ⓘ
geomagnetic polarity reversal ⓘ |
| notableWork | early 20th-century measurements of remanent magnetization in lava flows ⓘ |
| occupation |
scientist
ⓘ
university professor ⓘ |
| placeOfBirth | Japan ⓘ |
| sexOrGender | male ⓘ |
| studied |
Earth’s magnetic field
ⓘ
geomagnetic field reversals ⓘ magnetization of rocks ⓘ paleomagnetic polarity sequences ⓘ |
| workLocation | Japan ⓘ |
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: Motonori Matuyama Description of subject: Motonori Matuyama was a Japanese geophysicist and geologist renowned for his pioneering work on geomagnetic field reversals and paleomagnetism.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.