Abstract
The manuscript presents novel detailed mineralogical, petrographic and petrochemical studies of Early Vendian gabbro-dolerites of the Belskaya and Irlinskaya dikes of the Krivoluksky complex in the southeastern part of the Bashkir anticlinorium. We determined that the rocks of the complex underwent low-temperature changes, as a result of which dark-colored rock-forming minerals (amphiboles and pyroxenes) were completely replaced by chlorite. The gabbro-dolerites possess an increased content of sulfates strontium and barium. The geological position and contents of P2O5 and TiO2 cast doubt on the confinement of dikes near the village of Kaga to the Krivoluksky complex.
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