Natural Gas Migration Pathways and Their Influence on Gas Hydrate Enrichment in the Qiongdongnan Basin, South China Sea

Table 3

Geochemical parameters of source rocks in the study area [50–52].

Source rock age	TOC (%)	Proposed range of TOC content	HI (mg/g)	Kerogen type	Petroleum generation model	Remarks
Miocene	0.6	0.3-1.0	205	III	Burnham (1989)_T3	The measured data of the sample
Oligocene	1.1	0.8-1.8	257	III	Burnham (1989)_T3	[50, 52]
Eocene	2.34	2.0-2.5	450	II	Burnham (1989)_T2	[50, 51]