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Table T24. Position of paleomagnetic transitions, Holes U1313A, U1313B, U1313C, and U1313D.

Polarity chron
interpretation
Name Age
(Ma)
Hole U1313A Hole U1313B Hole U1313C Hole U1313D
Depth
(mbsf)
Relative
uncertainty
(m)
Depth
(mbsf)
Relative
uncertainty
(m)
Depth
(mbsf)
Relative
uncertainty
(m)
Depth
(mbsf)
Relative
uncertainty
(m)
C1n (b) Brunhes/Matuyama 0.78 34.2 0.4 34.1 0.4 34.1 0.4 33.8 0.1
C1r.1n (t) Jaramillo (t) 0.99 42.1 0.1 41.0 0.1 42.0 0.1 41.2 0.1
C1r.1n (b) Jaramillo (b) 1.07 45.3 0.1 45.1 0.1 47.1 0.1 45.8 0.1
C1r.2r-1n (t) Cobb Mt. (t) 1.19 49.5 0.1 49.4 0.1     49.6 0.1
C1r.2r-1n (b) Cobb Mt. (b) 1.215 50.7 0.1 50.8 0.1     50.9 0.1
C2n (t) Olduvai (t) 1.77 73.7 0.1 72.7 0.1 75.2 0.2 75.5 0.2
C2n (b) Olduvai (b) 1.95 82.2 0.1 81.8 0.1 82.4 0.4 83.1 0.1
C2r.1n (t) Reunion (t) 2.115 89.1 0.1     89.0 0.3    
C2r.1n (b) Reunion (b) 2.153 90.6 0.1     90.0 0.1    
C2An.1n (t) Matuyama/Gauss 2.581 111.0 0.2 109.9 0.2 110.5 0.1 111.6 0.1
C2An.1n (b) Kaena (t) 3.04 130.2 0.2     128.6 0.1 130.3 0.3
C2An.2n (t) Kaena (b) 3.11 131.7 0.2     131.7 0.1 131.9 0.1
C2An.2n (b) Mammoth (t) 3.22 136.2 0.2 135.9 0.1 137.4 0.4 135.9 0.3
C2An.3n (t) Mammoth (b) 3.33 138.4 0.1 139.1 0.2 138.4 0.1 139.0 0.2
C2An.3n (b) Gauss/Gilbert 3.58 155.2 0.2 154.8 0.1 153.8 0.1    
C3n.1n (t) Cochiti (t) 4.18 175.4 0.6 176.1 1.1 175.5 0.2    
C3n.1n (b) Cochiti (b) 4.29 182.1 0.4 180.7 0.9 183.0 0.1    
C3n.2n (t) Nunivak (t) 4.48 188.4 0.1 187.5 1.2 188.9 0.1    
C3n.2n (b) Nunivak (b) 4.62 195.6 0.3 194.1 0.1 195.1 0.2    
C3n.3n (t) Sidufjall (t) 4.80 202.0 0.1 201.5 0.1 202.6 0.2    
C3n.3n (b) Sidufjall (b) 4.89 204.3 0.7 206.7 0.1 207.0 0.1    
C3n.4n (t) Thvera (t) 4.98 210.6 0.4 210.8 0.1 212.1 0.1    
C3n.4n (b) Thvera (b) 5.230 222.3 0.3 220.8 0.3 222.7 0.2    
C3An.1n (t) Gilbert (b) 5.894 239.2 1.0 239.4 1.3 244.2 0.8    
C3An.1n (b)   6.137 249.7 0.3 252.3 0.3 253.0 0.4    
C3An.2n (t)   6.269                
C3An.2n (b)   6.567                

Notes: Interpretations in italics correspond to uncertain ties to the reference geomagnetic polarity timescale. t = top, b = bottom.

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