Accumulation and diagenesis of Tertiary coals in some marginal areas of the Asian continent

Abstract

Tertiary coals and coal-bearing formations are sporadically distributed in marginal areas of the Asian continent. Their economical qualities and quantities are inferior to continental Paleozoic coals, but their geological significance should be emphasized for studies of accumulation and transformation mechanisms of coal-bearing formations in continental margins. This paper attempts to discuss the geological processes that occurred during accumulation and diagenesis of the Tertiary coal-bearing formations in Kyushu, Japan and other Asian regions.