New criteria for selecting reliable Thellier-type paleointensity results from the 1960 Kilauea lava flows, Hawaii

Earth, Planets and Space

Table 1 Paleointensity results from the 1960 Hawaiian lava flows erupted from Kilauea

Sample	ΔT (°C)	n	f	g	q	β	B (μT)	Bg (μT)
Conventional paleointensity
A1*	200–600	12	0.89	0.84	23.24	3.25	46.97 ± 2.42
A15	200–540	9	0.74	0.75	15.13	3.66	48.66 ± 1.78
B2*	300–600	11	0.68	0.66	11.78	3.78	44.50 ± 1.68
B5*	300–580	10	0.48	0.75	8.87	4.06	37.05 ± 1.50
B7*	300–540	8	0.63	0.69	5.65	4.56	30.28 ± 1.38
C6	200–500	7	0.72	0.75	15.09	3.57	52.94 ± 1.89
Mean		7					43.40 ± 8.31
Mean*		4					39.70 ± 7.56
Restricted paleointensity
A1*	300–500	6	0.53	0.66	10.86	3.25	39.18 ± 2.04	7.79
B2*			0.49	0.63	6.64	4.62	32.20 ± 1.49	12.30
B5*			0.33	0.48	2.8	5.55	32.67 ± 1.81	4.38
B7*			0.25	0.67	1.83	9.14	30.75 ± 2.81	0.47
Mean		4					33.70 ± 3.74
Mean*		2					35.69 ± 4.94

ΔT is the temperature interval used in paleointensity estimation; n is the number of points used in paleointensity estimation; f, g, q, β and θ are NRM fraction, gap factor, quality factor, and the standard error of the slope and different angle of the selected NRM component from the origin on the orthogonal plot; Bg (μT) indicates the differences in the paleointensity estimations between the conventional IZZI approach and the more restricted values using the temperature interval from 300 to 500 °C; and * indicates that the value meets the condition (B_cr/B_c < 3 and CI < 10%)