Table 4. The diagnostic ratios (DRs) of hopanes for all the field samples.

Sample name	Ts/Tm	C29/C30	C31S/C31 (S+R)	C32S/C32 (S+R)	C33S/C33 (S+R)	C34S/C34 (S+R)	C35S/C35 (S+R)
Sample 1	0.92	0.36	0.59	0.59	0.58	0.59	0.59
Sample 2	0.94	0.37	0.59	0.59	0.59	0.61	0.60
Sample 3	0.93	0.37	0.59	0.60	0.59	0.60	0.58
Sample 4	0.93	0.38	0.59	0.59	0.60	0.60	0.59
Sample 5	0.93	0.36	0.59	0.60	0.59	0.59	0.58
Sample 6	0.93	0.36	0.60	0.60	0.59	0.60	0.59
Sample 7	0.53	0.56	0.57	0.60	0.63	0.69	0.51
Sample 8	0.61	0.99	0.57	0.54	0.64	0.67	0.64
Sample 9	1.44	0.35	0.57	0.58	0.63	0.65	0.62
Sample 10	0.35	0.64	0.59	0.57	0.62	0.63	0.59
Sample 11	0.19	0.73	0.59	0.62	0.62	0.66	0.62