The epilogue of Palaeoproterozoic tectonics in Eastern Sarmatia (W. Russia): insights from ~2 Ga bimodal post-collisional magmatism of the Mikhailovsky far-field continental back-arc basin
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In the Palaeoproterozoic Mikhailovsky far-field continental back-arc basin of Eastern Sarmatia, the most remote from the subduction trench, metasiliciclastic strata contain sheets of metabasalts, metadacites, and metarhyolites along with subvolcanic bodies of porphyric granite. The variably contaminated metabasalts (εNd(T) = −4.8 to −7.1) have high concentrations of Sr, low Cr/Ni, (Gd/Yb)n
创建时间：
2025-12-01
