A Late Paleoproterozoic (1.80 Ga) subduction-related mafic igneous suite from Lomza, NE Poland
The Lomza orthoamphibolites in the crystalline basement of NE Poland, dated at 1802 ± 9 Ma by SHRIMP zircon U-Pb, are characterized by high incompatible and REE element contents. These features, the low Nb, and the position of the rock compositions on La
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