FTIR and Raman Spectral Research on Metamorphism and Deformation of Coal

Figure 3

Relationship of aliphatic absorbance peaks of TDC with metamorphic and deformation stages. (a) and (b) relationship between aliphatic absorbance peaks and metamorphic stages. (c) and (d) relationship between aliphatic absorbance peaks and deformation stages.

(a)

(b)

(c)

(d)