THREE TYPES OF PLASTIC DEFORMATION IN GALENA |
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Abstract: | The aim of the article is to give a characteristic of plastic deformations of galena in nature. Under the action of,pressure galena deforms plastically by gliding, mechanical twinning and polygonisation. Each deformation process is examined on the basis of a dislocational mechanism, taking into consideration observations in nature and data of experiments. — Auth. English summ. |
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