Timing of Northern N.A. Craton Kimberlite Magmatism

• Greenland/Ungava - 630-550Ma

• southeast Slave - ca. 550Ma

• southwest Slave - ca. 450Ma

• northern Slave - ca. 172Ma

• central Slave - 74-47Ma

• Lac de Gras - 55-47Ma

• Somerset Island- 105-88Ma

• Victoria Island -??

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