Abstract
Salma eclogites distinguished in the northwestern part of the Belomorian mobile belt (BMB) is one of the key objects supporting the application of the plate tectonics mechanism to the Early Precambrian [1]. In this connection, age dating of eclogite metamorphism acquires principal importance and requires a complex approach. As a result of local U–Pb dating and study of the geochemistry of zircons from Salma eclogites of two types (after basic and ultrabasic rocks), grains and rims of zircon crystals of Svekofennian age (~1.9 Ga) with a complete set of geochemical characteristics of standard eclogitic zircons were found [2].
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