Passer au contenu principal

SAGE Social Science Thesaurus

Choisissez le vocabulaire dans lequel chercher

Concept information

Terme préférentiel

Snowball Earth  

Définition

  • A theory that ice ages between about 750 and 550 million years ago, during the neoproterozoic, affected the whole Earth, including the low latitudes. Key evidence comes from sedimentology and palaeogeography, and includes the warm-water carbonate rocks (cap carbonates) that immediately overlie glacial sediments, the analysis of carbon isotopes and palaeomagnetism. [Source: Encyclopedia of Environmental Change; snowball Earth]

Concept générique

Appartient au groupe

URI

http://data.loterre.fr/ark:/67375/N9J-C9TMTRCZ-2

Télécharger ce concept :