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The Southern Yenisey Range (Eastern Siberia) consists of the granulite-facies Kanskiy complex bordered by the lower-grade Yeniseyskiy and Yukseevskiy complexes. Samples of metapelite of the Kanskiy complex typically show characteristic garnet-forming reaction textures and near-isobaric cooling  P – T  paths. An important new result of this study concerns the difference in shape of the  P – T  paths from different parts of the Kanskiy granulite complex: metapelites collected ∼8 km from the boundary with the Yeniseyskiy complex followed a linear path with d P /d T  ≈ 0·006 kbar/°C; metapelites collected ∼3 km from this boundary reveal a kinked  P – T  path with an interval of burial cooling (d P /d T  ≈ −0·006 kbar/°C). The difference in the shape of the  P – T  paths is supported by the chemical zoning of garnet studied in the second group of samples. A mechanism of buoyant exhumation of granulite is suggested by comparison with the results of numerical modelling, which indicate that such a diversity of  P – T  paths may result from a transient disturbance of the thermal structure by rapid differential movement of material from different crustal levels. To arrive at a correct tectonic interpretation, the whole assemblage of interrelated  P – T  paths of metamorphic rocks collected from different localities within the same complex must be studied.

Metapelites of the Kanskiy Granulite Complex (Eastern Siberia): Kinked P – T Paths and Geodynamic Model