🌐فارسیEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسیไทย한국어中文日本語EntityQ852013· pop 39· linked from 254 articlesسپر (زمینشناسی)large, tectonically stable formation of Precambrian crystalline rockAvailable in 39 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةArmenianAzerbaijaniConnectionssedimentary rockEntitytectonicsEntityCategoriesPlate tectonicsShields (geology)