Petrografia węgli brunatnych w świetle uchwał Komisji Węgli Brunatnych ICCP

Kazimiera Hamberger, Barbara Kwiecińska

Abstract


PETROGRAPHY OF BROWN COALS IN THE LIGHT OF RESOLUTIONS OF THE COMMITTEE FOR BROWN COALS, ICCP

Summary

Situation in the research of brown coal petrography is presented in the light of the works of·the XXII Session of the International Committee for Coal Petrology (ICCP) held in Varna (1969), and of the XXIII Session held in Liege (1970). Characteristic features at decay process of vegetal material are given, and groups, subgroups and macerals of brown coals are discussed.


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