Maceral and biomarker data show that the OM pool is dominated by algal, planktonic and bacterial OM (Fig.
Currently, particular attention is paid to coal
macerals and optical properties in relation to CRI and CSR indexes (Gupta et al., 2012; Pusz et al., 2009, 2003).
Table 1: The proximate, ultimate, and
maceral composition of anthracite.
Despite the significant effects of the coal type on gas adsorption by coal, no agreement has been reached on how the
maceral compositions are correlated to the adsorption capacity of coal for methane [34].
Several methods are available to determine the type and amount of mineral matter and to assess their associations with coal
macerals. Fractionation method was used by several researchers (Cloke et al., 2002; Spears and Booth, 2002) to study associations of mineral components with organic material of coal in different size fractions.
La naturaleza del carbon, tal como el rango y la composicion
maceral.
Trace element data as well as
maceral data were used to reconstruct depositional environment of the Miocene marine source rocks in the Qiongdongnan Basin.
The process of self-heating of coal is influenced by many factors, including deposit temperature, the degree of coal fragmentation, type of coal and its rank, and moisture and ash content of coal, as well as
maceral composition.
Vitrinite reflectance (R0) value is microscopically determined on the wood-derived
maceral vitrinite.