Depth profile of frictional properties in the inner Nankai accretionary prism using cuttings from IODP Site C0002

Fujioka, Riho; Katayama, Ikuo; Kitamura, Manami; Okuda, Hanaya; Hirose, Takehiro

doi:10.1186/s40645-022-00488-1

Progress in Earth and Planetary Science

Table 1 Summary of the experimental results

From: Depth profile of frictional properties in the inner Nankai accretionary prism using cuttings from IODP Site C0002

Exp. run number	Sample source	Bottom depth (mbsf)	Effective pressure (MPa)	Slip rate (μm/s)	Friction coefficient	a − b (3 to 33 μm/s)	a − b (0.3 to 3 μm/s)	D_c (μm) (3 to 33 μm/s)	D_c (μm) (0.3 to 3 μm/s)
HTB742	C0002N-25SMW	980.5	8.6	0.3, 3, 33	0.48	0.0027	0.0053	75.0	9.2
HTB733	C0002N-35SMW	1030.5	9	0.3, 3, 33	0.52	0.0049 ± 0.0003	0.0043	53.9 ± 23.9	15.1
HTB730	C0002N-56SMW	1130.5	10.9	0.3, 3, 33	0.54	0.0056 ± 0.0009	0.0063 ± 0.0003	112.4 ± 55.8	17.6 ± 12.4
HTB726	C0002N-66SMW	1180.5	11.5	0.3, 3, 33	0.47	0.0038 ± 0.0001	0.0034 ± 0.0008	123.3 ± 5.7	43.5 ± 13.5
HTB724	C0002N-82SMW	1230.5	11.6	0.3, 3, 33	0.52	0.0038	0.0031 ± 0.0001	29.8	3.3 ± 3.2
HTB723	C0002N-98SMW	1310.5	12.8	0.3, 3, 33	0.46	0.0037 ± 0.0001	0.0037 ± 0.0007	115.6 ± 4.4	43.4 ± 21.0
HTB720	C0002N-110SMW	1360.5	13.3	0.3, 3, 33	0.48	0.0048 ± 0.0001	0.0042	41.2 ± 11.2	9.4
HTB719	C0002N-120SMW	1410.5	13.8	0.3, 3, 33	0.46	0.0031 ± 0.0016	0.0035 ± 0.0005	111.8 ± 12.2	48.5 ± 23.9
HTB713	C0002N-141SMW	1510.5	14.9	0.3, 3, 33	0.50	0.0041 ± 0.0002	0.0031	70.1 ± 6.7	26.7
HTB712	C0002N-153SMW	1560.5	14.6	0.3, 3, 33	0.52	0.0033 ± 0.0005	0.0039 ± 0.0001	79.2 ± 2.6	17.9 ± 3.2
HTB711	C0002N-163SMW	1610.5	15.2	0.3, 3, 33	0.45	0.0041 ± 0.0018	0.0041 ± 0.0009	91.5 ± 41.1	35.9 ± 34.5
HTB710	C0002N-185SMW	1700.5	17.0	0.3, 3, 33	0.49	–	–	–	–
HTB709	C0002N-196SMW	1750.5	17.6	0.3, 3, 33	0.48	0.0035 ± 0.0006	0.0036	76.0 ± 15.2	19.8
HTB702	C0002N-206SMW	1800.5	18.4	0.3, 3, 33	0.50	0.0047 ± 0.0001	0.0044	57.1 ± 24.9	10.4
HTB701	C0002N-227SMW	1900.5	19.5	0.3, 3, 33	0.52	0.0052 ± 0.0019	0.0026	26.3 ± 6.3	14.3
HTB700	C0002N-240SMW	1960.5	19.4	0.3, 3, 33	0.45	0.0058 ± 0.0002	0.0033	50.0 ± 20.0	15.0
HTB699	C0002N-251SMW	2000.5	20.3	0.3, 3, 33	0.47	0.0045 ± 0.0001	0.0039 ± 0.0002	64.9 ± 3.5	9.8 ± 2.9
HTB698	C0002N-263SMW	2030.5	20.1	0.3, 3, 33	0.49	0.0040 ± 0.0000	0.0027 ± 0.00002	25.0 ± 5.0	10.5 ± 2.3
HTB697	C0002N-267SMW	2050.5	20.4	0.3, 3, 33	0.51	0.0037 ± 0.0003	0.0023 ± 0.0003	40.0 ± 5.0	20.2 ± 4.8
HTB696	C0002N-275SMW	2090.5	20.9	0.3, 3, 33	0.49	0.0060	0.0030 ± 0.0002	0.7 ± 0.7	4.6 ± 1.6
HTB695	C0002N-280SMW	2110.5	21.1	0.3, 3, 33	0.45	0.0053 ± 0.0002	0.0046 ± 0.0002	12.0 ± 2.0	6.5 ± 3.3
HTB694	C0002N-290SMW	2160.5	21.6	0.3, 3, 33	0.48	0.0051 ± 0.0000	0.0046 ± 0.0002	5.9 ± 0.2	4.4 ± 3.1
HTB693	C0002N-299SMW	2190.5	22.1	0.3, 3, 33	0.47	0.0041	–	7.3	–
HTB691	C0002N-309SMW	2240.5	22.8	0.3, 3, 33	0.45	0.0044 ± 0.0001	0.0037 ± 0.0003	20.8 ± 4.8	9.3 ± 1.1
HTB746	C0002P-114SMW	2260.5	22.9	0.3, 3, 33	0.53	0.0020	0.0019 ± 0.0002	36.6	15.6 ± 0.0
HTB749	C0002P-126SMW	2310.5	23.7	0.3, 3, 33	0.48	0.0039 ± 0.0002	0.0031 ± 0.0003	45.1 ± 36	13.6 ± 8.6
HTB750	C0002P-137SMW	2360.5	24.5	0.3, 3, 33	0.54	0.0041 ± 0.0004	0.0013	16.7 ± 3.3	21.4
HTB752	C0002P-150SMW	2410.5	25.0	0.3, 3, 33	0.56	0.0023 ± 0.0000	0.0024 ± 0.0003	28.8 ± 0.6	5.5 ± 0.7
HTB753	C0002P-162SMW	2460.5	26.6	0.3, 3, 33	0.57	0.0037 ± 0.0004	0.0020	39.9 ± 9.9	0.9
HTB754	C0002P-173SMW	2510.5	26.8	0.3, 3, 33	0.56	–	0.0020 ± 0.0001	–	5.5 ± 0.9
HTB756	C0002P-184SMW	2560.5	27.9	0.3, 3, 33	0.59	0.0029 ± 0.0005	0.0017 ± 0.0001	27.5 ± 7.5	10.8 ± 2.0
HTB757	C0002P-197SMW	2610.5	28.1	0.3, 3, 33	0.46	0.0036	0.0038	6.5	5.8
HTB758	C0002P-209SMW	2660.5	28.5	0.3, 3, 33	0.49	0.0047 ± 0.0001	0.0040	20.0	1.1
HTB759	C0002P-220SMW	2710.5	29.6	0.3, 3, 33	0.55	0.0037	0.0016	7.5	16.8
HTB760	C0002P-232SMW	2760.5	30.1	0.3, 3, 33	0.60	0.0030 ± 0.0003	0.0006 ± 0.0003	3.3 ± 0.14	8.4 ± 1.6
HTB761	C0002P-243SMW	2810.5	30.2	0.3, 3, 33	0.53	0.0031 ± 0.0001	0.0024 ± 0.0002	20.5 ± 2.89	8.8 ± 0.8
HTB763	C0002P-255SMW	2860.5	31.3	0.3, 3, 33	0.53	0.0042 ± 0.0000	0.0035 ± 0.0005	5.0 ± 0.01	5.0
HTB764	C0002P-266SMW	2910.5	32.0	0.3, 3, 33	0.55	0.0030	0.0027 ± 0.0000	28.9	7.2 ± 1.4
HTB766	C0002P-278SMW	2960.5	32.9	0.3, 3, 33	0.59	0.0023 ± 0.0003	0.0007 ± 0.0001	10.7 ± 2.04	7.2 ± 0.3
HTB767	C0002P-290SMW	3010.5	33.0	0.3, 3, 33	0.58	0.0032 ± 0.0002	0.0018 ± 0.0001	2.0 ± 0.17	17.5 ± 2.5
HTB768	C0002P-299SMW	3050.5	33.7	0.3, 3, 33	0.54	0.0043	0.0020 ± 0.0004	2.1	13.8 ± 6.2
HTB769	C0002Q-450SMW	3102.5	35.0	0.3, 3, 33	0.49	0.0047	0.0032 ± 0.0002	0.5	6.1 ± 1.3
HTB770	C0002Q-500SMW	3142.5	35.5	0.3, 3, 33	0.51	0.0044 ± 0.0003	0.0032 ± 0.0002	13.1 ± 10.68	11.2 ± 3.8
HTB773	C0002Q-540SMW	3182.5	36.1	0.3, 3, 33	0.49	0.0039 ± 0.0003	0.0020 ± 0.0006	33.5 ± 6.48	23.5 ± 8.4
HTB774	C0002Q-578SMW	3222.5	36.6	0.3, 3, 33	0.48	0.0041	0.0024 ± 0.0001	25.0	21.1 ± 8.9
HTB775	C0002Q-634SMW	3262.5	37.2	0.3, 3, 33	0.54	0.0038	0.0019 ± 0.0000	5.4	5.8 ± 1.2

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