Abstract
The Sm-Nd isotope ages of apoamphibolite eclogites and eclogite-like garnet-clinopyroxene crystalline schists collected in the Chupa and Engozero segments of the Belomorian mobile belt are estimated. Eclogites and eclogite-like garnet-clinopyroxene rocks demonstrated nearly the same isotope age (2119±170 and 2191±39 Ma, respectively) on the same pair of minerals (garnet-clinopyroxene). The age obtained (about 2.1 Ga) is the oldest indicator of the onset of Paleoproterozoic metamorphism in the Belomorian mobile belt.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have