Mechanism of long-standing Cenozoic basin formation in central Hokkaido: an integrated basin study on an oblique convergent margin

Progress in Earth and Planetary Science

Table 1 Rock-eval pyrolysis, total organic carbon (TOC), and vitrinite reflectance data for the study areas

Sample ID	Depth (m)	T _max(°C)	S ₁(mg/g)	S ₂(mg/g)	S ₃(mg/g)	TOC (wt.%)	% Ro
Chinomi-gawa section
CH26	533	442	0.05	0.89	0.33	0.96	0.69
CH01	535	443	0.02	0.61	0.32	1.00	0.78
CH02	590	434	0.02	0.27	0.14	0.62	0.83
CH03	613	437	0.02	0.23	0.23	0.57	0.83
CH05	738	436	0.02	0.33	0.21	0.63	0.73
CH06	741	439	0.05	0.54	0.21	0.90	0.86
CH07	773	440	0.02	0.38	0.19	0.93	0.89
CH08	792	440	0.02	0.26	0.24	0.70	0.82
CH10	802	438	0.02	0.31	0.22	0.74	0.84