Skip to main content

Table 1 Rock magnetic and physical properties. Bulk grain density, natural remanent magnetization (NRM), magnetic susceptibility (K), and Koenigsberger ratio (Q) of 15 lava samples obtained in the dives 6K#918 and 6K#1331 were demonstrated

From: Near-seafloor magnetic mapping of off-axis lava flows near the Kairei and Yokoniwa hydrothermal vent fields in the Central Indian Ridge

Sample n Grain density (kg/m3) NRM (A/m) σNRM (A/m) K (SI) σK (SI) Q Latitude (°) Longitude (°) Depth
6K#918R01 4 2.98 8.2 0.5 0.0223 0.0011 10 − 25.3363 70.0180 2897
6K#918R02 4 2.98 6.4 0.4 0.0016 0.0001 115 − 25.3324 70.0207 2836
6K#918R03 4 2.96 18.4 1.6 0.0025 0.0002 209 − 25.3275 70.0293 2704
6K#918R06 4 2.99 11.5 0.9 0.0025 0.0004 129 − 25.3204 70.0400 2428
6K#918R07 4 2.99 2.9 0.3 0.0103 0.0022 8 − 25.3208 70.0415 2435
6K#918R08 4 3.09 4.2 0.1 0.0124 0.0003 9 − 25.3217 70.0428 2423
6K#918R09 4 3.09 5.6 0.4 0.0111 0.0002 14 − 25.3176 70.0500 2445
6K#918R10 4 3.01 8.2 1.4 0.0019 0.0004 122 − 25.3176 70.0500 2445
6K#918R11 4 3.03 11.2 3.8 0.0058 0.0026 54 − 25.3176 70.0500 2445
6K#1331R01 4 2.94 1.2 1.0 0.0007 0.0002 46 − 25.2600 70.0579 2622
6K#1331R02 4 2.96 0.9 0.4 0.0007 0.0001 34 − 25.2600 70.0579 2622
6K#1331R03 6 2.97 1.7 1.4 0.0008 0.0002 59 − 25.2610 70.0623 2556
6K#1331R04 5 2.96 1.3 0.7 0.0007 0.0001 51 − 25.2610 70.0623 2556
6K#1331R06 8 2.95 1.9 1.4 0.0008 0.0002 64 − 25.2632 70.0650 2560
6K#1331R07 4 2.97 1.8 1.8 0.0007 0.0001 74 − 25.2632 70.0650 2560
  1. The original data of the dive 6K#1331 sample was cited from Fujii et al. (2016a)
  2. n Number of measured 2-cm cubic specimens, NRM natural remanent magnetization, K magnetic susceptibility. Q Koenigsberger ratio (ratio of NRM to induced magnetization)