Microhardness of Coal from Near-Fault Zones in Coal Seams Threatened with Gas-Geodynamic Phenomena, Upper Silesian Coal Basin, Poland
Near-fault coal displays some specific structural and textural features. As the distance to the fault diminishes, one can observe ever stronger, gradual degradation of coal, demonstrated by the emergence of structural distortions exogenic in their origin, visible under a microscope. The process of g...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
MDPI AG
2019-05-01
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Series: | Energies |
Subjects: | |
Online Access: | https://www.mdpi.com/1996-1073/12/9/1756 |