OPTICAL, STRUCTURAL AND THERMAL CHARACTERIZATIONOF META-ANTHRACITE FROM ZEMPLINICUM WEST CARPATHIANS

Year, pages: 1991, 53 - 58

Carbonaceous material from several boreholes which penetrated the Carboniferous strata in the Zemplinicum block is according to reflectance and DT A characteristics at the meta-anthracitic stage. X-ray diffraction corresponds to a less ordered structure typical of anthracite what is supposed to be a result of high concentrations of intertinite in the samples. The analyses of carbonaceous material give evidence that the sedimentary rocks were exposed to very low-grade/low-grade metamorphism under high-temperature and low-pressure conditions, probably during the latest Paleozoic and the early Mesozoic periods. Discontinuities in graphitization with depth suggest postmetamorphic faulting and overthrusting of the partial blocks of the sequence.

Milicka, J., Francu, J., Horvath, I., Toman, B. 1991. OPTICAL, STRUCTURAL AND THERMAL CHARACTERIZATIONOF META-ANTHRACITE FROM ZEMPLINICUM WEST CARPATHIANS. In Geologica Carpathica, vol. 42, no.1, pp. 53-58. 1335-0552.

Milicka, J., Francu, J., Horvath, I., Toman, B. (1991). OPTICAL, STRUCTURAL AND THERMAL CHARACTERIZATIONOF META-ANTHRACITE FROM ZEMPLINICUM WEST CARPATHIANS. Geologica Carpathica, 42(1), 53-58. 1335-0552.