Atlantic continental margin of South America

E824952

continental margin physiographic region

The Atlantic continental margin of South America is the broad submerged edge of the South American continent along the Atlantic Ocean, encompassing extensive continental shelves, slopes, and rises such as the Patagonian Shelf.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (2)

Label	Occurrences
South American continental margin	2
Atlantic continental margin of South America canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T9851135 — 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: Atlantic continental margin of South America
Context triple: [Patagonian Shelf, partOf, Atlantic continental margin of South America]

A. Pacific margin of the Americas
The Pacific margin of the Americas is the tectonically active western edge of North and South America, characterized by subduction zones, mountain-building, and frequent earthquakes and volcanism along the Pacific Ocean.
B. North American continental margin
The North American continental margin is the submerged outer edge of the North American tectonic plate, extending from the coastline across the continental shelf, slope, and rise into the deep ocean basins.
C. Pacific coast of South America
The Pacific coast of South America is the long western shoreline of the continent, stretching from Colombia to Chile and Peru along the Pacific Ocean and encompassing major ports, rich marine ecosystems, and diverse coastal landscapes.
D. Colombian continental margin
The Colombian continental margin is the submerged outer edge of the South American continent off Colombia’s Caribbean coast, where the shallow continental shelf transitions into the deeper Colombian Basin.
E. Atlantic coast of Argentina
The Atlantic coast of Argentina is a long, sparsely populated shoreline along the South Atlantic Ocean, known for its cold waters, rich marine biodiversity, and important fishing and port cities such as Mar del Plata and Bahía Blanca.
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: Atlantic continental margin of South America
Target entity description: The Atlantic continental margin of South America is the broad submerged edge of the South American continent along the Atlantic Ocean, encompassing extensive continental shelves, slopes, and rises such as the Patagonian Shelf.

A. Pacific margin of the Americas
The Pacific margin of the Americas is the tectonically active western edge of North and South America, characterized by subduction zones, mountain-building, and frequent earthquakes and volcanism along the Pacific Ocean.
B. North American continental margin
The North American continental margin is the submerged outer edge of the North American tectonic plate, extending from the coastline across the continental shelf, slope, and rise into the deep ocean basins.
C. Pacific coast of South America
The Pacific coast of South America is the long western shoreline of the continent, stretching from Colombia to Chile and Peru along the Pacific Ocean and encompassing major ports, rich marine ecosystems, and diverse coastal landscapes.
D. Colombian continental margin
The Colombian continental margin is the submerged outer edge of the South American continent off Colombia’s Caribbean coast, where the shallow continental shelf transitions into the deeper Colombian Basin.
E. Atlantic coast of Argentina
The Atlantic coast of Argentina is a long, sparsely populated shoreline along the South Atlantic Ocean, known for its cold waters, rich marine biodiversity, and important fishing and port cities such as Mar del Plata and Bahía Blanca.
F. None of above. chosen

Statements (42)

Predicate	Object
instanceOf	continental margin ⓘ physiographic region ⓘ
adjacentTo	Argentine coast ⓘ linked to: Atlantic coast of Argentina Brazilian coast ⓘ linked to: Brazilian Atlantic coast Falkland Plateau region ⓘ linked to: Falkland Plateau Uruguayan coast ⓘ linked to: Uruguayan Riviera
borders	Atlantic Ocean ⓘ
boundedBy	continental interior of South America to the west ⓘ deep ocean basins of the South Atlantic to the east ⓘ
characterizedBy	broad continental shelves in southern sectors ⓘ narrower continental shelves in tropical sectors ⓘ
developedSince	Mesozoic era ⓘ
extendsAlong	eastern margin of South America ⓘ
formedBy	passive continental margin processes ⓘ
governedBy	exclusive economic zones of South American coastal states ⓘ
hasPart	Argentine continental slope ⓘ Brazilian continental shelf ⓘ Guiana continental shelf ⓘ Patagonian Shelf ⓘ continental rise ⓘ continental shelf ⓘ continental slope ⓘ
hasSedimentaryCover	thick marine sedimentary sequences ⓘ
hasVariable	shelf width along its length ⓘ
importantFor	fisheries ⓘ hydrocarbon resources ⓘ marine biodiversity ⓘ
includesFeature	sediment drifts ⓘ shelf breaks ⓘ submarine canyons ⓘ
influencedBy	breakup of Gondwana ⓘ
locatedIn	South Atlantic Ocean ⓘ linked to: South Atlantic Southern Ocean ⓘ
partOf	South American continent ⓘ linked to: South America
relatedTo	opening of the South Atlantic Ocean ⓘ
studiedIn	marine geology ⓘ oceanography ⓘ plate tectonics ⓘ
subjectTo	oceanographic processes of the Brazil Current ⓘ oceanographic processes of the Malvinas Current ⓘ upwelling in some sectors ⓘ
tectonicSetting	passive margin ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Patagonian Shelf → partOf → Atlantic continental margin of South America ⓘ

Western South Atlantic marine ecoregion → borderedBy → South American continental margin ⓘ

linked to: Atlantic continental margin of South America

Carnegie Ridge → extendsToward → South American continental margin ⓘ