Research Article

FTIR and Raman Spectral Research on Metamorphism and Deformation of Coal

Figure 2

Relationship of aromatic absorbance peaks of TDC with different metamorphic and deformation stages. (a) and (b) relationship between aromatic absorbance peaks and metamorphic stages. (c) and (d) relationship between aromatic absorbance peaks and deformation stages.
590857.fig.002a
(a)
590857.fig.002b
(b)
590857.fig.002c
(c)
590857.fig.002d
(d)