Sunda Shelf
E135585
The Sunda Shelf is a vast, shallow continental shelf in Southeast Asia that underlies much of the region’s seas and connects the submerged extensions of the Malay Peninsula, Borneo, Sumatra, and Java.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Sunda Shelf canonical | 10 |
| Sunda Plateau | 1 |
| Sunda Shelf land areas | 1 |
| Sunda Shelf maritime region | 1 |
| Sunda Shelf region | 1 |
| Sundaland margin system (broadly defined) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1063396 — 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: Sunda Shelf Context triple: [Ujung Kulon National Park, partOf, Sunda Shelf]
-
A.
Sunda Plate
The Sunda Plate is a minor tectonic plate in Southeast Asia that underlies much of Indonesia and surrounding regions, interacting with several neighboring plates and contributing to the area's high seismic and volcanic activity.
-
B.
Sunda Arc
The Sunda Arc is a major volcanic island arc in Indonesia formed by the subduction of the Indo-Australian Plate beneath the Eurasian Plate, hosting numerous active volcanoes across Sumatra, Java, and the Lesser Sunda Islands.
-
C.
Kula Plate
The Kula Plate was an ancient oceanic tectonic plate in the northern Pacific that once subducted beneath western North America before being largely consumed.
-
D.
Sunda Trench
The Sunda Trench is a deep oceanic trench in the eastern Indian Ocean off the coasts of Sumatra and Java, formed by the subduction of the Indo-Australian Plate beneath the Eurasian Plate.
-
E.
Greater Sunda Islands
The Greater Sunda Islands are a major group of large islands in maritime Southeast Asia, including Java, Sumatra, Borneo, and Sulawesi, known for their rich biodiversity and dense human populations.
- 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: Sunda Shelf Target entity description: The Sunda Shelf is a vast, shallow continental shelf in Southeast Asia that underlies much of the region’s seas and connects the submerged extensions of the Malay Peninsula, Borneo, Sumatra, and Java.
-
A.
Sunda Plate
The Sunda Plate is a minor tectonic plate in Southeast Asia that underlies much of Indonesia and surrounding regions, interacting with several neighboring plates and contributing to the area's high seismic and volcanic activity.
-
B.
Sunda Arc
The Sunda Arc is a major volcanic island arc in Indonesia formed by the subduction of the Indo-Australian Plate beneath the Eurasian Plate, hosting numerous active volcanoes across Sumatra, Java, and the Lesser Sunda Islands.
-
C.
Kula Plate
The Kula Plate was an ancient oceanic tectonic plate in the northern Pacific that once subducted beneath western North America before being largely consumed.
-
D.
Sunda Trench
The Sunda Trench is a deep oceanic trench in the eastern Indian Ocean off the coasts of Sumatra and Java, formed by the subduction of the Indo-Australian Plate beneath the Eurasian Plate.
-
E.
Greater Sunda Islands
The Greater Sunda Islands are a major group of large islands in maritime Southeast Asia, including Java, Sumatra, Borneo, and Sulawesi, known for their rich biodiversity and dense human populations.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
continental shelf
ⓘ
submerged continental margin ⓘ |
| associatedWithBiogeographicRegion | Sundaland ⓘ |
| averageWaterDepth | less than 200 metres ⓘ |
| borderedBy |
Java Trench region to the south
ⓘ
deep ocean basins of the South China Sea ⓘ |
| connectedTo |
Borneo
ⓘ
Java ⓘ Malay Peninsula ⓘ Sumatra ⓘ |
| contains | extensive river valley systems buried beneath marine sediments ⓘ |
| countryOffshoreFrom |
Cambodia
ⓘ
Indonesia ⓘ Malaysia ⓘ Singapore ⓘ Thailand ⓘ Viet Nam ⓘ
surface form:
Vietnam
|
| coveredBy | shallow epicontinental seas ⓘ |
| economicImportance |
hosts hydrocarbon resources
ⓘ
important for regional shipping routes ⓘ supports major fisheries ⓘ |
| formedLandBridgeBetween |
mainland Southeast Asia and Borneo during glacial maxima
ⓘ
mainland Southeast Asia and Java during glacial maxima ⓘ mainland Southeast Asia and Sumatra during glacial maxima ⓘ |
| geologicalAge | mainly Mesozoic and Cenozoic basement ⓘ |
| hasSeafloorType | broad, gently sloping shelf ⓘ |
| importantFor |
biogeography of Southeast Asian flora and fauna
ⓘ
paleoclimate reconstructions ⓘ sea-level change studies ⓘ |
| locatedIn | Southeast Asia ⓘ |
| maximumWaterDepth | approximately 200 metres ⓘ |
| paleogeographicRegionName | Sundaland ⓘ |
| partOf |
Eurasian continental margin
ⓘ
Sunda Craton ⓘ |
| seaLevelHistory |
exposed as dry land during Pleistocene low sea levels
ⓘ
submerged during Holocene sea-level rise ⓘ |
| sedimentSource | large Southeast Asian rivers ⓘ |
| separates |
Asian mainland from deeper parts of the eastern Indian Ocean
ⓘ
Asian mainland from deeper parts of the western Pacific Ocean ⓘ |
| subregionOf | Sunda Plate ⓘ |
| tectonicSetting | marginal to the Sunda subduction zone ⓘ |
| underlies |
Gulf of Thailand
ⓘ
Java Sea ⓘ Karimata Strait ⓘ South China Sea ⓘ Strait of Malacca ⓘ |
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: Sunda Shelf Description of subject: The Sunda Shelf is a vast, shallow continental shelf in Southeast Asia that underlies much of the region’s seas and connects the submerged extensions of the Malay Peninsula, Borneo, Sumatra, and Java.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Sunda Shelf maritime region
this entity surface form:
Sunda Plateau
this entity surface form:
Sunda Shelf land areas
this entity surface form:
Sundaland margin system (broadly defined)
this entity surface form:
Sunda Shelf region