The preceding discussion has shown that similar plant tissues can form a wide range of degradation products when subjected to varying degrees of humification and dehydration before being incorporated in the accumulating peat. On conversion into coal some of the differences between the peat components are lost whereas others are retained and may even become accentuated, such as differences between macerals in reflectance which develop at the beginning of physico-chemical coalification, before undergoing the kind of convergence illustrated in Fig. 3.29.
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- Coal Petrographic Entities
Claus F. K. Diessel
- Springer Berlin Heidelberg
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