Meishan section, South China
E267702
Global Boundary Stratotype Section and Point
Permian–Triassic boundary section
geological section
stratigraphic section
The Meishan section in South China is a globally important geological site that preserves the most complete and intensively studied rock record of the Permian–Triassic mass extinction boundary.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Meishan section, South China canonical | 1 |
| Meishan section, Zhejiang, China | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2447317 — 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: Meishan section, South China Context triple: [Permian–Triassic mass extinction, keyStudyRegion, Meishan section, South China]
-
A.
middle reaches of the Yangtze River
The middle reaches of the Yangtze River are a broad, fertile section of central China’s Yangtze basin characterized by extensive plains, major lakes, and dense agricultural and urban development.
-
B.
Three Gorges Reservoir Region
The Three Gorges Reservoir Region is a vast, ecologically and culturally significant area in central China surrounding the Three Gorges Dam along the Yangtze River, known for its dramatic landscapes, biodiversity, and large-scale resettlement and conservation efforts.
-
C.
Chaoshan region
The Chaoshan region is an area in eastern Guangdong, China, known for its distinct Teochew culture, language, and cuisine.
-
D.
Wuling Mountains region
The Wuling Mountains region is a mountainous area in central China known for its karst landscapes, deep gorges, and significant Tujia and Miao ethnic minority communities.
-
E.
Dongyang, Zhejiang, China
Dongyang is a county-level city in central Zhejiang Province, eastern China, known for its thriving private economy, woodcarving and architectural craftsmanship, and proximity to the manufacturing hub of Yiwu.
- 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: Meishan section, South China Target entity description: The Meishan section in South China is a globally important geological site that preserves the most complete and intensively studied rock record of the Permian–Triassic mass extinction boundary.
-
A.
middle reaches of the Yangtze River
The middle reaches of the Yangtze River are a broad, fertile section of central China’s Yangtze basin characterized by extensive plains, major lakes, and dense agricultural and urban development.
-
B.
Three Gorges Reservoir Region
The Three Gorges Reservoir Region is a vast, ecologically and culturally significant area in central China surrounding the Three Gorges Dam along the Yangtze River, known for its dramatic landscapes, biodiversity, and large-scale resettlement and conservation efforts.
-
C.
Chaoshan region
The Chaoshan region is an area in eastern Guangdong, China, known for its distinct Teochew culture, language, and cuisine.
-
D.
Wuling Mountains region
The Wuling Mountains region is a mountainous area in central China known for its karst landscapes, deep gorges, and significant Tujia and Miao ethnic minority communities.
-
E.
Dongyang, Zhejiang, China
Dongyang is a county-level city in central Zhejiang Province, eastern China, known for its thriving private economy, woodcarving and architectural craftsmanship, and proximity to the manufacturing hub of Yiwu.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Global Boundary Stratotype Section and Point
ⓘ
Permian–Triassic boundary section ⓘ geological section ⓘ stratigraphic section ⓘ |
| contains |
ammonoid fossils
ⓘ
biostratigraphic marker fossils ⓘ carbonate rocks ⓘ conodont fossils ⓘ foraminiferal fossils ⓘ marine sedimentary rocks ⓘ siliciclastic rocks ⓘ |
| correlatesWith | Permian–Triassic boundary sections worldwide ⓘ |
| hasBoundaryType |
biostratigraphic boundary
ⓘ
chronostratigraphic boundary ⓘ |
| hasEvent | Permian–Triassic mass extinction ⓘ |
| hasGeologicalAge |
Permian
ⓘ
Triassic ⓘ |
| hasGlobalImportance |
key site for understanding end-Permian environmental change
ⓘ
reference section for Permian–Triassic mass extinction ⓘ |
| hasResearchHistory | intensively studied since late 20th century ⓘ |
| hasStratigraphicSignificance |
defines base of the Induan Stage
ⓘ
defines base of the Mesozoic Era ⓘ defines base of the Triassic System ⓘ global reference for the Permian–Triassic boundary ⓘ |
| isKnownFor |
intensively studied Permian–Triassic transition
ⓘ
most complete rock record of the Permian–Triassic boundary ⓘ |
| locatedIn |
Changxing County
ⓘ
China ⓘ southern China ⓘ
surface form:
South China
Zhejiang Province ⓘ |
| preserves |
Permian–Triassic boundary beds
ⓘ
Permian–Triassic mass extinction record ⓘ |
| recognizedBy |
International Commission on Stratigraphy
ⓘ
International Union of Geological Sciences ⓘ |
| shows |
abrupt biotic turnover at Permian–Triassic boundary
ⓘ
changes in sedimentation across boundary ⓘ large negative carbon isotope excursion near boundary ⓘ |
| studiedBy |
geochemists
ⓘ
paleontologists ⓘ sedimentologists ⓘ stratigraphers ⓘ |
| usedFor |
chemostratigraphic studies
ⓘ
global correlation of Permian–Triassic boundary ⓘ paleoenvironmental reconstruction ⓘ paleontological studies ⓘ study of mass extinction dynamics ⓘ |
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: Meishan section, South China Description of subject: The Meishan section in South China is a globally important geological site that preserves the most complete and intensively studied rock record of the Permian–Triassic mass extinction boundary.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Meishan section, Zhejiang, China