African continental shelf
E825396
The African continental shelf is the submerged, gently sloping extension of the African continent’s landmass, forming broad, shallow marine areas along its coasts.
All labels observed (1)
| Label | Occurrences |
|---|---|
| African continental shelf canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9842388 — 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: African continental shelf Context triple: [Agulhas Bank, partOf, African continental shelf]
-
A.
Agulhas Bank
Agulhas Bank is a broad, shallow extension of the continental shelf off the southern tip of Africa, known for its rich marine biodiversity and significant influence on regional ocean currents and fisheries.
-
B.
Outer Continental Shelf
The Outer Continental Shelf is the federally controlled offshore seabed and subsoil beyond state coastal waters of the United States, known for its significant oil, gas, and renewable energy resources.
-
C.
Patagonian Shelf
The Patagonian Shelf is a broad, shallow continental shelf off the coast of southern South America, known for its rich marine biodiversity and highly productive fishing grounds.
-
D.
Eurasian continental margin
The Eurasian continental margin is the submerged edge of the Eurasian tectonic plate, extending from its coastal shelves into the deep Arctic and Atlantic oceans and encompassing features such as the Chukchi Plateau.
-
E.
Scotian Shelf
The Scotian Shelf is a broad, shallow continental shelf off Atlantic Canada known for its rich marine ecosystems and important commercial fisheries.
- 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: African continental shelf Target entity description: The African continental shelf is the submerged, gently sloping extension of the African continent’s landmass, forming broad, shallow marine areas along its coasts.
-
A.
Agulhas Bank
Agulhas Bank is a broad, shallow extension of the continental shelf off the southern tip of Africa, known for its rich marine biodiversity and significant influence on regional ocean currents and fisheries.
-
B.
Outer Continental Shelf
The Outer Continental Shelf is the federally controlled offshore seabed and subsoil beyond state coastal waters of the United States, known for its significant oil, gas, and renewable energy resources.
-
C.
Patagonian Shelf
The Patagonian Shelf is a broad, shallow continental shelf off the coast of southern South America, known for its rich marine biodiversity and highly productive fishing grounds.
-
D.
Eurasian continental margin
The Eurasian continental margin is the submerged edge of the Eurasian tectonic plate, extending from its coastal shelves into the deep Arctic and Atlantic oceans and encompassing features such as the Chukchi Plateau.
-
E.
Scotian Shelf
The Scotian Shelf is a broad, shallow continental shelf off Atlantic Canada known for its rich marine ecosystems and important commercial fisheries.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
continental shelf
ⓘ
submerged landform ⓘ |
| adjacentTo |
coast of Algeria
ⓘ
coast of Angola ⓘ coast of Egypt ⓘ coast of Libya ⓘ coast of Mauritania ⓘ coast of Morocco ⓘ coast of Morocco (Mediterranean) ⓘ coast of Mozambique ⓘ coast of Namibia ⓘ coast of Nigeria ⓘ coast of Senegal ⓘ coast of Somalia ⓘ coast of South Africa ⓘ coast of Tunisia ⓘ coast of Western Sahara ⓘ |
| borderedBy | continental slope ⓘ |
| contains |
mineral resources
ⓘ
natural gas resources ⓘ petroleum resources ⓘ |
| formedBy |
sedimentary processes
ⓘ
tectonic processes ⓘ |
| governedBy | United Nations Convention on the Law of the Sea NERFINISHED ⓘ |
| hasCharacteristic |
gently sloping
ⓘ
shallow marine environment ⓘ submerged ⓘ varied width ⓘ |
| hasPart |
East African continental shelf
ⓘ
North African continental shelf ⓘ Southern African continental shelf NERFINISHED ⓘ West African continental shelf NERFINISHED ⓘ |
| influences |
coastal ecosystems of Africa
ⓘ
coastal upwelling systems around Africa ⓘ |
| locatedIn |
Atlantic Ocean
ⓘ
Gulf of Guinea NERFINISHED ⓘ Indian Ocean ⓘ Mediterranean Sea ⓘ Mozambique Channel NERFINISHED ⓘ Red Sea NERFINISHED ⓘ |
| lowerBoundary | shelf break ⓘ |
| partOf |
African continent
NERFINISHED
ⓘ
Earth crust NERFINISHED ⓘ |
| relevantFor | exclusive economic zones of African coastal states ⓘ |
| studiedInDiscipline |
marine geology
ⓘ
oceanography ⓘ |
| supports | major fisheries ⓘ |
| typicalDepthRange | 0–200 meters ⓘ |
| upperBoundary | shoreline of Africa ⓘ |
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: African continental shelf Description of subject: The African continental shelf is the submerged, gently sloping extension of the African continent’s landmass, forming broad, shallow marine areas along its coasts.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.