New absolute paleomagnetic intensity data from Cenozoic basalts of Northeast China and exploring rock-magnetic parameters for efficient sample preselection on the Tsunakawa–Shaw paleointensity method

Ahn, Hyeon-Seon; Lee, Youn Soo; Yamamoto, Yuhji

doi:10.1186/s40623-023-01953-x

Earth, Planets and Space

Table 3 Summary of specimen-level Tsunakawa–Shaw (TS) absolute paleomagnetic field intensity (API) results for the NE China basalt samples

From: New absolute paleomagnetic intensity data from Cenozoic basalts of Northeast China and exploring rock-magnetic parameters for efficient sample preselection on the Tsunakawa–Shaw paleointensity method

Sample ID	NRM_LTD,0	PCA for NRM (sample-coordinate)						1st heating								2nd heating								F_Lab	F_paleo
Sample ID	[Am²/kg]	Dec	Inc	MAD	N	H_c,1	H_c,2	Time	T_MAX	H_L	H_H	S_NRM	ΔS_NRM	FRAC_NRM	r_NRM	Time	T_MAX	H_L	H_H	S_TRM1	ΔS_TRM1	FRAC_TRM	r_TRM	[mT]	[mT]
14175-A-2AU	2.33E-04	75.2	32.0	3.6	27	22	180	15	580	22	180	0.675	0.035	0.497	0.968	–	–	–	–	–	–	–	-	50	fail
14175-B-1AU	2.28E-04	77.6	37.6	4.4	25	26	180	15	580	26	180	1.290	0.112	0.379	0.924	–	–	–	–	–	–	–	-	50	fail
14175-D-1AL	2.23E-04	76.4	54.4	2.9	31	14	180	15	580	14	180	0.970	0.079	0.573	0.916	30	580	0	180	1.005	0.013	1.000	0.997	50	fail
14175-F-1BL	2.29E-04	75.6	48.4	6.0	25	26	180	15	580	26	180	0.740	0.026	0.329	0.986	30	580	6	180	0.975	0.026	0.458	0.989	50	fail
14181-B-2B	2.47E-03	86.1	−14.7	1.6	38	0	180	15	580	0	180	0.662	0.009	1.000	0.997	30	580	0	180	0.935	0.003	1.000	1.000	50	fail
14181-C-1B14	7.40E-03	69.0	27.3	0.6	38	0	180	15	580	0	110	0.654	0.013	0.857	0.995	30	580	0	180	0.961	0.004	1.000	1.000	50	32.4
14181-D-1A4	6.58E-03	83.1	23.3	2.0	38	0	180	15	580	0	140	0.982	0.017	0.957	0.995	30	580	0	180	0.970	0.005	1.000	0.999	50	49.1
14181-E-2AL	5.49E-03	78.7	23.8	1.7	37	2	180	15	580	2	130	0.847	0.012	0.927	0.997	30	580	0	180	0.959	0.003	1.000	1.000	50	42.4
14181-E-2AU	5.50E-03	76.7	24.7	1.7	36	4	180	15	580	4	110	0.719	0.014	0.836	0.995	30	580	0	180	1.031	0.003	1.000	1.000	50	36.0
14181-F-24	3.40E-03	49.6	34.2	0.7	38	0	180	15	580	0	180	0.434	0.003	1.000	0.999	30	580	0	180	0.968	0.004	1.000	1.000	50	21.7
14181-G-1BU4	2.04E-03	94.8	−19.7	1.8	21	35	180	15	580	35	180	0.346	0.004	0.670	0.999	30	580	0	180	0.950	0.005	1.000	0.999	50	17.3
14182-A-1U	5.04E-04	83.6	52.3	6.5	30	16	180	15	610	16	180	0.307	0.014	0.347	0.974	30	610	16	180	0.958	0.013	0.716	0.998	25	fail
14182-B-1A1	4.86E-04	96.3	−59.5	1.9	32	12	180	15	610	12	180	0.314	0.006	0.854	0.995	30	610	4	180	0.952	0.012	0.991	0.997	25	7.9
14182-C-2A2	5.50E-04	55.5	11.1	8.3	30	16	180	15	610	16	180	0.316	0.010	0.302	0.987	30	610	16	180	0.956	0.011	0.786	0.998	25	fail
14182-F-1U	5.94E-04	29.0	52.9	2.9	24	20	140	15	610	20	140	0.319	0.006	0.564	0.995	30	610	20	140	0.950	0.009	0.825	0.999	25	8.0
14182-G-3A2	6.14E-04	21.3	55.7	2.2	30	16	180	15	580	16	180	0.126	0.001	0.584	0.998	30	580	0	180	0.979	0.009	1.000	0.999	50	6.3
14183-B-1B2	2.74E-03	292.6	−6.7	0.8	35	6	180	15	580	6	180	1.602	0.085	0.679	0.957	30	580	0	180	0.964	0.007	1.000	0.999	50	fail
14183-C-1A4	3.10E-03	294.5	−5.6	1.9	23	30	180	15	580	30	180	0.381	0.020	0.111	0.971	30	580	0	180	1.050	0.020	1.000	0.994	50	fail
14183-D-1A	1.45E-03	287.5	−30.4	2.2	24	28	180	15	580	28	180	0.284	0.008	0.192	0.991	30	580	0	180	1.114	0.025	1.000	0.991	50	fail
14183-G-1A1	1.84E-03	265.1	47.3	2.4	26	24	180	15	580	24	180	0.494	0.020	0.125	0.981	30	580	0	180	1.066	0.013	1.000	0.997	50	fail
14192-B-4U	1.21E-03	120.0	48.0	0.6	36	0	180	15	610	0	180	1.295	0.022	1.000	0.995	30	610	0	180	1.012	0.006	1.000	0.999	30	38.8
14192-C-1A2	9.43E-04	152.0	28.6	1.0	34	8	180	15	580	8	180	0.617	0.008	0.945	0.997	30	580	0	180	0.981	0.008	1.000	0.999	50	30.9
14192-F-2U	9.93E-04	119.5	39.0	0.7	38	0	180	15	610	0	180	0.922	0.015	1.000	0.995	30	610	0	180	0.981	0.003	1.000	1.000	30	27.7
14192-G-2L	9.36E-04	77.2	7.3	0.7	38	0	180	15	610	0	180	1.375	0.013	1.000	0.998	30	610	0	180	0.984	0.007	1.000	0.999	25	34.4
14201-B-1BL	4.48E-04	221.9	−1.4	3.2	26	24	180	15	580	24	180	0.146	0.004	0.290	0.992	30	580	24	180	0.913	0.021	0.482	0.994	50	fail
14201-D-1AU*	2.35E-04	221.8	−3.8	4.7	24	12	180	15	610	12	180	0.424	0.011	0.388	0.993	30	610	2	180	1.003	0.011	0.971	0.998	10	fail
14201-E-1AU	2.12E-04	205.3	−2.1	11.5	27	22	180	15	610	22	180	0.303	0.016	0.389	0.965	30	610	8	180	0.996	0.018	0.970	0.995	10	fail
14201-F-2AU	1.96E-04	240.6	−25.4	7.8	32	12	180	15	580	12	180	0.119	0.003	0.441	0.991	30	580	12	180	0.800	0.024	0.748	0.987	50	fail
14201-G-2U	5.33E-04	285.1	−6.8	3.5	32	12	180	15	610	12	180	0.337	0.004	0.408	0.997	30	610	2	180	0.995	0.009	0.979	0.999	25	8.4
14222-A-1A4	4.10E-03	227.0	67.0	1.6	26	24	180	15	580	24	180	1.016	0.009	0.608	0.999	30	580	16	180	1.040	0.010	0.762	0.999	50	50.8
14222-B-2A4	2.99E-03	181.7	62.6	4.3	28	20	180	15	580	20	180	1.154	0.016	0.611	0.998	30	580	2	180	1.012	0.008	0.995	0.999	50	57.7
14222-C-1BB4	4.00E-03	225.4	51.5	1.2	32	12	180	15	580	12	180	1.018	0.006	0.871	0.999	30	580	0	180	1.020	0.006	1.000	0.999	50	50.9
14222-D-2A4	5.54E-03	102.2	27.5	0.7	28	16	170	15	580	16	170	0.914	0.009	0.634	0.999	30	580	16	170	1.042	0.019	0.718	0.996	50	45.7
14222-F-14	4.19E-03	49.1	30.7	1.0	30	16	180	15	580	16	180	0.987	0.010	0.665	0.999	30	580	0	180	1.040	0.014	1.000	0.997	50	49.4
14222-G-2U4-	1.44E-03	75.0	16.5	1.3	37	0	180	15	580	0	180	1.178	0.008	1.000	0.999	30	580	0	180	0.966	0.009	1.000	0.998	50	58.9
14226-A-1AU	1.10E-03	52.6	37.0	0.9	35	6	180	15	580	6	180	1.262	0.007	0.807	0.999	30	580	0	180	1.036	0.010	1.000	0.998	50	63.1
14226-B-1BU	1.45E-03	60.2	15.6	1.0	38	4	180	15	580	4	180	1.123	0.005	0.941	1.000	30	580	0	180	0.996	0.012	1.000	0.998	50	56.2
14226-C-1BU	1.47E-03	66.1	14.2	0.8	33	8	170	15	580	8	170	1.324	0.009	0.686	0.999	30	580	0	170	0.952	0.009	1.000	0.998	50	66.2
14226-D-1BU	2.62E-03	70.0	−8.1	0.9	35	6	180	15	580	6	180	1.150	0.009	0.775	0.999	30	580	6	180	1.049	0.012	0.710	0.998	50	57.5
14226-E-1AM	2.09E-03	80.7	49.0	0.9	37	2	180	15	580	2	180	1.271	0.009	0.970	0.999	30	580	0	180	0.972	0.008	1.000	0.999	50	63.6
14226-F-3A1	1.72E-03	59.4	4.6	0.9	34	8	180	15	580	8	180	1.215	0.013	0.665	0.998	30	580	0	180	1.031	0.011	1.000	0.998	50	60.7
14226-G-2CU	1.72E-03	68.7	−17.1	0.7	37	2	180	15	580	2	180	1.235	0.008	0.951	0.999	30	580	0	180	1.010	0.015	1.000	0.998	50	61.8

Sample ID, specimen name used in experiment; “*” denotes the sample for which measurement artefacts occurred during altering field (AF) demagnetizations of thermo-remanence (TRM)1. NRM_LTD,0, NRM intensity after low-temperature demagnetization. In the principal component analysis (PCA) for the natural remanent magnetization (NRM; sample-coordinate) panel: Dec, Inc, and MAD, declination and inclination in the sample-coordinate system, and the maximum angular deviation determined by the PCA free-floating fit (Kirschvink 1980), respectively, for the selected data intervals; N, the number of selected data points for PCA; H_c,1 and H_c,2, the low and high limits of the interval of AF steps selected for PCA, respectively. In the 1st and 2nd heating panels: Time and T_MAX, hold time at the set peak temperature in each heating process and the set peak temperature, respectively; H_L and H_H, low and high limits of the interval of AF steps selected for determining a linear segment; S_N and S_T, slope values of the selected linear segment in the NRM-TRM1* and TRM1-TRM2* diagrams, respectively; FRAC_NRM and FRAC_TRM, the NRM and TRM1 fractions of the selected linear NRM-TRM1* and TRM1-TRM2* segments,, respectively, defined by Shaar and Tauxe (2013); r_N and r_T, correlation coefficients for linearity of NRM/TRM1* and TRM1/TRM2* data points in the selected linear segment, respectively. F_lab, laboratory DC fields during TRM1 and TRM2 acquisitions. F_paleo, API estimate (“fail” denotes the specimen failed in acquisition of successful API determination). "-" denotes "no data." Bold letters indicate successful API determination results. Arabic numerals in italics denote values that fail to satisfy the corresponding selection criterion (“API determination” section)

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