HUD­SON BAY FORMED IN AN­CIENT ROCK

Science Illustrated - - SCIENCE UPDATE -

Aged 2.7 bil­lion years, the rock by Hud­son Bay in Québec is among the old­est rock in the world. The gran­ite, which in­cludes the re­mains of Earth’s orig­i­nal crust, makes up a ma­jor part of the Hud­son Bay east coast.

Hud­son Bay CANADA USA

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