EntityQ852013· pop 39· linked from 254 articlesshieldSign in to savelarge, tectonically stable formation of Precambrian crystalline rockConnectionssedimentary rockEntitytectonicsEntityCanadaCountrySouth AmericaEntityNorth AmericaEntityGreenlandConceptyearEntityInternational Standard Book NumberEntityArcticEntityplate tectonicsEntityLake SuperiorEntitydigital object identifierEntityigneous rockEntitylithosphereEntityPrecambrianEntitymetamorphic rockEntityQuaternaryEntitysubtropicsEntitygneissEntityOCLC, Inc.EntityCategoriesPlate tectonicsShields (geology)