四川晚三叠世煤变质问题的研究

RESEARCH ON COAL METAMORPHISM OF THE LATE TRIASSIC IN SICHUAN

本文描述了四川晚三叠世煤变质的特征,并据此对四川晚三叠世煤变质问题作了全面分析。阐明了以深成变质作用为主,而后叠加多种变质作用及多种热源,从而形成现今煤变质状况的新见解。并在研究煤变质的基础上探讨了煤变质模式。

<ABSTRACT> Some coal metamorphic characteristics of late Triassic in Sichuan are described in this paper. In view of the characteristics, coal metamorphism of late Triassic in Sichuan is analysed. It is concluded that this was resulted mainly by hypometamorphism together with thermometamorphism and later by the superposition of multisources of heat. The coal metamorphism model is discussed and some new ideas about the study of coal metamorphism are presented.