Age of monazite from metapelitic schists of Atomfjella and Mossel series, Western Ny Friesland, Spitsbergen according to the CHIME method

The article presents the results of CHIME (chemical Th-U-total Pb isochron method) dating of monazite from metamorphic rocks of Precambrian complexes located in the north part of the West Spitsbergen Island. It is shown that for rocks of Atomfjella Series and Mossel Series, monazite ages are coeval within error (Atomfjella Series: 381 ± 18 Ma, Mossel Series: 377 ± 23 Ma). These age estimates show that metamorphism of the crystalline basement possibly took place during the Late Caledonian orogeny.