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Table 1 Site and formation mean paleomagnetic results from southwest Japan at 110 Ma

From: An improved apparent polar wander path for southwest Japan: post-Cretaceous multiphase rotations with respect to the Asian continent

Site Formation Lithology N (n) In situ Tilt corrected I corrected k α95 (°) Locality Strike (°) Dip (°) IRMZ/IRMX
D (°) I (°) D (°) I (°) D (°) I (°)    Lat (°N) Long (°E)    
High-temperature component
 IN1 Inakura Red ms 4(6) 94.2 27.9 94.2 27.9 94.2 29.2 70.3 11.0 34.55 133.46 0 0 0.940
 IN2 Inakura Red ms 6(6) 91.8 31.6 91.8 31.6 91.8 33.7 25.3 13.6 34.55 133.46 0 0 0.907
 IN3 Inakura Red ms 7(7) 77.0 25.3 77.0 25.3 77.0 26.6 13.6 17.0 34.55 133.46 0 0 0.938
 IN4 Inakura Red ms (6)          34.55 133.46 97 17  
 IN5 Inakura Red ms 6(6) 69.3 51.6 70.0 42.6 70.0 43.0 34.9 11.5 34.55 133.46 344 9 0.977
 IN6a Inakura Red ms 6(6) 296.1 72.8 105.0 0.0 105.0 0 23.6 14.1 34.55 133.46 18 107  
 IN7 Inakura Gray fine ss (7)          34.55 133.47 89 11  
 IN8 Inakura Red ms 6(6) 71.3 37.5 70.1 40.0 70.1 42.9 40.6 10.6 34.55 133.46 192 3 0.859
 IN9 Inakura Red ms 9(9) 89.0 49.9 88.2 52.8 88.2 57.8 13.3 14.7 34.55 133.46 192 3 0.830
 IN10 Inakura Red ms 8(8) 88.8 46.2 85.5 36.9 85.5 39.6 58.3 7.3 34.55 133.46 335 10 0.906
 IN11 Inakura Greenish Red ms (6)          34.55 133.46 292 3  
 IN12 Inakura Greenish Red ms (6)          34.55 133.46 0 0  
 IN13 Inakura Red ms 5(6) 95.4 30.8 95.4 30.8 95.4 35.3 27.7 14.8 34.55 133.46 0 0 0.840
 IN14 Inakura Red ms 6(6) 87.2 56.7 95.2 49.9 95.2 54.4 277.8 4.0 34.55 133.46 42 9 0.850
 IN15 Inakura Red ms 6(6) 77.7 55.7 86.8 49.9 86.8 51.4 433.0 3.2 34.55 133.46 42 9 0.950
 IN16 Inakura Red ms 4(6) 66.6 42.2 73.4 38.0 73.4 42.3 553.8 3.9 34.55 133.46 42 9 0.858
 In situ mean    11 83.0 41.9      34.2 7.9 34.55 133.46    
 Tilt-corrected mean       84.3 39.1    44.4 6.9      
 Inclination-corrected mean         84.2 41.9 42.0 7.1      
Uno and Furukawa (2005)
 SG1b Ohyamashimo Red ms 6(6) 39.7 44.8 58.1 48.1    24.9 15.6      
 SG2b Ohyamashimo Red ss 5(5) 140.8 82.2 51.4 68.3    366.8 4.0      
 SG3b Ohyamashimo Red ms 6(6) 45.8 42.6 63.1 48.2    49.0 9.7      
 SG8b Ohyamashimo Red ms 6(6) 64.8 53.9 91.2 60.6    95.3 6.9      
 SG12b Ohyamashimo Red ms 7(7) 51.8 40.1 71.7 57.1    119.9 5.5      
 SG13b Ohyamashimo Red ms 3(6) 52.8 40.3 74.0 56.0    88.3 13.2      
 In situ overall mean    17 73.8 46.1      18.0 8.6 34.55 133.46    
 Tilt-corrected overall mean       79.8 45.6    28.6 6.8      
 Inclination-corrected overall mean         79.7 47.4 31.0 6.5      
Medium temperature component
 In situ mean    12 58.2 50.6      81.7 4.8 34.55 133.46    
 Tilt-corrected mean       59.9 49.4    63.3 5.5      
 9% unfolded mean         58.3 50.5 82.0 4.8      
  1. ms: mudstone; ss, sandstone; N(n): number of samples used in calculation of the means (number of samples demagnetized); D and I: declination and inclination, respectively; k: the precision parameter; α95: radius of the cone of 95% confidence; Lat: north latitude; Long: east longitude
  2. aNot involved in the calculation of the mean direction
  3. bRecalculated at the reference point of this study (34.55° N, 133.46° E)