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Table 3 Thellier–Coe paleointensity results for sites PO-1 and PO-2 (pyroclastic density currents)

From: A comprehensive paleomagnetic study from the last Plinian eruptions of Popocatepetl volcano: absolute chronology of lavas and estimation of emplacement temperatures of PDCs

SpecimenΔT (°C)Nβfgqδ(CK)δ(TR)MADancClassHraw (μT)± σH (μT)fHcrc (μT)
Site PO-1
Clast 1
1B250–56090.050.520.607.71.45.91.5C65.412.681.0065.18
2B250–56090.070.420.684.14.42.91.2B69.934.831.0266.59
3A400–56060.040.290.544.04.75.71.4C73.742.911.0073.37
         Mean = 69.7  69.2
         1σ = 4.2  4.2
Clast 2
4A250–56090.010.500.593.03.24.41.1B44.291.391.0044.29
4B250–56090.040.570.557.73.64.80.9A41.231.861.0041.23
5A250–56090.050.690.445.92.65.31.1B44.321.671.0841.01
6A300–56080.030.870.7719.00.48.61.1C42.152.191.0241.50
8A250–56090.030.880.8226.89.06.81.7C42.421.301.0042.51
9A250–56090.050.910.8115.41.69.70.9C45.172.401.0045.17
         Mean = 44.5  43.8
         1σ = 3.7  2.8
Site PO-2
Clast 1
10A20054080.060.720.779.118.05.51.3C57.73.841.0057.7
11A150–51570.120.360.661.90.52.81.2B57.67.11.0157.0
12A200–51590.050.370.674.67.62.81.0B58.73.141.0456.4
13A200–51580.100.380.652.54.24.50.9B59.25.931.0556.4
14A150–51580.120.320.641.83.76.50.7B50.15.911.0149.8
         Mean = 56.4  54.9
         1σ = 4.1  3.4
Clast 2
15A200–51590.070.350.783.96.31.51.8B48.053.331.0446.2
16B300–56090.090.350.793.042.93.61.5C50.004.671.0547.6
17A250–56070.080.310.853.162.04.41.1C42.743.591.0142.3
18AN/R  
         Mean = 46.9  45.4
         1σ = 3.8  2.8
Clast 3
19B350–54070.070.370.824.09.45.74.1B68.684.281.0565.4
20A200–54090.050.490.878.37.64.92.1B64.101.461.0660.5
20BN/R    
         Mean = 66.4  62.9
         1σ = 3.2  3.5
  1. Data in italics not used for PI calculations
  2. ΔT temperature interval used for the intensity determination, N number of heating steps used for the intensity determination, β = σm/m, f fraction of extrapolated NRM used for intensity determination, g gap factor, q quality factor as defined by Coe et al. (1978), δ(CK), δ(TR), MADanc and class as defined by Leonhardt et al. (2004), Hraw raw archeointensity value, σH standard deviation of H, f cooling rate correction factor, Hcrc cooling rate-corrected archeointensity