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

Earth, Planets and Space

Table 1 Brief information on the sampled sites and associated age constraints of the Northeast (NE) China volcanic field analyzed in this study

Site name	Name of basalt/volcanic field	Sampling locality			Age info
Site name	Name of basalt/volcanic field	Area name	Lat. (° N)	Lon. (° E)	Age info
14175	Naitoushan Basalt/CVF	Naitoushan	42.33219	128.14203	Miocene (Liu 1983, 1987, 1988; Chun and Cheong 2020)
14192	Toudao Basalt/CVF	Yaoshui	42.52450	128.05640	~ 2.8 ~ 1.9 Ma (Wei et al. 2007), ~ 2.5 Ma (sample B5102 of the same outcrop in Lee et al. 2021)
14181	Toudao Basalt/CVF	Baomacun	42.41610	128.04347	same as those of site 14192
14182	Toudao Basalt/CVF	Jinjiangcun	41.97798	127.55910	same as those of site 14192 (the same site as where the sample B4182 was collected in Lee et al. 2021)
14183	Baishan Basalt/CVF	Jinjiangcun	41.98098	127.56295	~ 1.4 ~ 0.9 Ma (Wei et al. 2007), ~ 1.1 Ma (the Baishan Basalt sample B5104 in Lee et al. 2021)
14201	Longgang Basalt/LVF	Longgang	42.49373	126.47533	~ 1.2 Ma (basanite at Dalongwan area in Liu 1987), ~ 0.9 Ma (unpublished direct K–Ar data, credit by Dr. Y. S. Lee)
14222	Jingpohu Basalt/JVF	Jingpohu	44.07695	128.99215	Late Pleistocene to Holocene around Xingshan area (Liu et al. 1989; Yan and Zhao 2008), ~ 0.12 Ma (unpublished direct K–Ar data, credit by Dr. Y. S. Lee)
14226	Jingpohu Basalt/JVF	Jingpohu	44.06550	128.94912	Late Pleistocene to Holocene (Liu et al. 1989; Yan and Zhao 2008), ~ 0.08 Ma (unpublished direct K–Ar data, credit by Dr. Y. S. Lee)

CVF, LVF, and JVF represent the Changbaishan (Baekdusan), Longgang, and Jingpohu volcanic fields, respectively