CHARACTERISTICS AND ORIGIN OF SUBMICROLIPTINITE IN THE JURASSIC COALS OF TURHAN BASIN

Coordinated confocal laser microscopy and transmission election microscopy work on the coal and mudstone of Jurassic coal in the Turhan basin has shown that submicroliptinite disseminate in collinte,mineral-bituminous matrix and some macrinite in the sub-micro level(<1μm),which is too fine to observe with light microscopy.The amounts of submicroliptinite in coal is about 8%~12% in the rank of vitrinite maximum reflectance 0 50%~0 70%R o Optical properties evolution of submicroliptinite appears to be faster than sporinite and cutinite.Submicroliptinite are important oil-prone source material in Jurassic coals of Turhan basin.