Bilingual glossary of geology
Craton Craton
A stable portion of the continental crust that has not been affected by significant tectonic events since the Precambrian Eon and that is constituted of relatively flat-lying Precambrian-age igneous and metamorphic rocks. Subdivided into a shield (exposed) and platform (covered).
Themes:
Geological history and geology of Ottawa/Gatineau area
Related words:
Shield
Image:
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Themes:
Geological history and geology of Ottawa/Gatineau area
Related words:
Shield
Image: