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Shear Zones and Mineralized Fissures
1987All researchers recognize the important implication of faulting for the geological setting of the Pechenga region. These were studied in most detail in the Pechenga ore field. According to Gorbunov et al. (1978), the geological structure of the Pechenga ore field was formed in five stages.
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Deformation of polymineralic rocks at elevated temperatures usually results in grain size refinement but also in a grain scale mixture of mineral phases. Phase mixtures may either be homogeneous or exhibit a compositional and microstructural layering. Depending on the host rock stability, mixtures may consist of combinations of redistributed or newly ...
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