Multiple Influences of Paleogeography, Sequence Stratigraphy, and Fold Structure on Coalbed Methane Accumulation in the Lopingian (Late Permian) of Junlian Coalfield, SW China

Table 3

Coal maceral composition and coal quality characteristics in southern Sichuan.

Study area	Coal	Vitrinite group (%)	Inertinite group (%)	TOC (%)	Mineral (%)	(%)	Coal types
Junlian		71.11	21.51	92.62	7.38	2.90	Anthracite
		70.13	23.50	93.63	6.37	2.83	Anthracite
Xuyong		37.05	41.85	78.90	21.10	2.37	Anthracite
		39.06	50.48	89.54	10.46	2.58	Anthracite