RESTUDY ON THE CUTICLES OF LATE MIDDLE DEVONIAN COAL FROM LUQUAN,YUNNAN,CHINA

Coal is often considered as one of the important indicators in studying palaeoecology and palaeoclimatology.Late Middle Devonian coals have been reported from South China.Sheng et al.(1992) thought that the precursors of Luquan coals were derived from pteridophyte plants,or bacteria/algae.After studying the cutinites,Quan and Han(1997) thought that Taeniocrada decheniana and primitive lycopsids(such as Drepanophycus sp.) were the principal coal-forming plants.However,there are some ways about the Luquan coals on the geological age and prescursors,it is necessary for us to restudy coals,its geological age and its forming plants.

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Clc Number:

Q914.6