Based upon a series of the coal graphite samples collected from China, the jumpy evolution of the EPR response of the high rank coals was found and its geochemical mechanism was further inquired. The results showed th...Based upon a series of the coal graphite samples collected from China, the jumpy evolution of the EPR response of the high rank coals was found and its geochemical mechanism was further inquired. The results showed that the makingup, which is activated notably at about 6.0% maximum vitrinite reflectance, might play a principal role in the development of the macromolecular basic structural units in the coals being in the middle to late stage of high rank coalification and that the homologisation of the chemical bonds in the macro molecular structure might provide a geochemical microenvironment for the realization of the makingup.展开更多
文摘Based upon a series of the coal graphite samples collected from China, the jumpy evolution of the EPR response of the high rank coals was found and its geochemical mechanism was further inquired. The results showed that the makingup, which is activated notably at about 6.0% maximum vitrinite reflectance, might play a principal role in the development of the macromolecular basic structural units in the coals being in the middle to late stage of high rank coalification and that the homologisation of the chemical bonds in the macro molecular structure might provide a geochemical microenvironment for the realization of the makingup.
