Abstract:

This paper studies the behaviour of visible fluorescence of more than 100 aromatic fraction samples extracted from various coal-series in China.The result shows that highly condensated aromatic compounds increases gradually during the maturation process of or-gantic matter,thus causing fluorescence“red shift”while the weathering and oxidization might cause fluorescence“violet shift”.The behaviour of fluorescence of aromatic hydro-carbon may be taken as fine potential index for maturation.