North American Craton

GPTKB entity

Statements (23)
Predicate Object
gptkbp:instanceOf granite
gptkbp:age Archean to Proterozoic
gptkbp:alsoKnownAs gptkb:Laurentia
gptkbp:composedOf gptkb:Greenland
gptkb:Canadian_Shield
parts of the United States
gptkbp:contains igneous rocks
ancient metamorphic rocks
gptkbp:coveredBy sedimentary rocks in the United States
gptkbp:covers central and northern North America
gptkbp:exposedAtSurface gptkb:Canadian_Shield
gptkbp:extendsTo gptkb:Greenland
eastern Arctic islands
parts of the midwestern United States
gptkbp:formed over 2.5 billion years ago
https://www.w3.org/2000/01/rdf-schema#label North American Craton
gptkbp:locatedIn gptkb:North_America
gptkbp:partOf Earth's continental crust
gptkbp:significance forms the geological core of North America
gptkbp:surroundedBy younger orogenic belts
gptkbp:tectonicStability high
gptkbp:bfsParent gptkb:Laurentia
gptkbp:bfsLayer 6