Antarctic Plate

E10083

The Antarctic Plate is a major tectonic plate underlying the continent of Antarctica and surrounding Southern Ocean, playing a key role in global plate motions and seafloor spreading.

All labels observed (1)

Label Occurrences
Antarctic Plate canonical 52

How this entity was disambiguated

Statements (49)

Predicate Object
instanceOf major tectonic plate
tectonic plate
affects Antarctic seismicity
Antarctic topography
Southern Ocean bathymetry
global ocean circulation
age mostly Mesozoic to Cenozoic oceanic crust
borders African Plate
Indo-Australian Plate
Nazca Plate
Pacific Plate
Phoenix Plate remnant
Scotia Plate
South American Plate
contains continental crust of Antarctica
oceanic crust of Southern Ocean
formedBy breakup of Gondwana
hasBoundaryType convergent boundary
divergent boundary
transform boundary
hasFeature Antarctic Peninsula margin
East Antarctic craton basement
Transantarctic Mountains support
West Antarctic Rift System
fracture zones in Southern Ocean
subduction zones at Scotia margin
locatedIn Southern Hemisphere
motionDirection northward relative to mantle
motionType mostly divergent with surrounding plates
namedAfter Antarctica
partOf Earth lithosphere
roleIn Antarctic Circumpolar Current development
global plate motions
opening of Southern Ocean basins
seafloor spreading
separatedFrom African Plate
Indo-Australian Plate
surface form: Australian Plate

South American Plate
studiedIn marine geophysics
plate tectonics
polar geology
surroundedBy Pacific-Antarctic Ridge
surface form: American-Antarctic Ridge

Pacific-Antarctic Ridge
Scotia Arc
surface form: Scotia Arc region

Southeast Indian Ridge
Southwest Indian Ridge
mid-ocean ridges
underlies Antarctica
Southern Ocean seafloor

How these facts were elicited

Referenced by (52)

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

Australian Plate interactsWith Antarctic Plate
Easter microplate boundedBy Antarctic Plate