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Table T15. Position of the top (T) and bottom (B) of polarity chronozones and subchronozones, Site U1417.

Polarity boundary interpretation Age
(Ma)
  Hole U1417A Hole U1417B
Core, section,
interval (cm)
Depth
CSF-A
(m)
Depth
CCSF-A
(m)
Depth
CCSF-B
(m)
Core, section,
interval (cm)
Depth
CSF-A
(m)
Depth
CCSF-A
(m)
Depth
CCSF-B
(m)
C1n (B) Matuyama/Brunhes   0.781   Top 14H-5, 120 111.60 127.00 109.86 13H-1, 90 106 127.36 110.17
Base 14H-7, 10 113.50 128.90 111.49 13H-2, 90 107.5 128.86 111.46
C1r.1n (T) Jaramillo   0.988   Top 17H-2, 140 135.80 153.13 132.46        
Base 17H-4, 10 137.50 154.83 133.93        
C1r.1n (B) Jaramillo   1.072   Top 18H-1, 130 143.70 161.44 139.65        
Base 18H-3, 22.5 144.85 162.59 140.64        
C2n (T) Olduvai   1.778   Top         23H-4, 37.5 187.15 215.78 185.81
Base         24H-2, 25 189.25 221.34 189.92
C2n (B) Olduvai   1.945   Top         28H-2, 22.5 203.93 241.63 204.92
Base         28H-2, 127.5 204.98 242.68 205.70
C2r.1n (T) Reunion   2.128   Top                
Base                
C2r.1n (B) Reunion   2.148   Top         34H-1, 85 224.25 267.51 224.25
Base         34H-1, 125 224.65 267.91 224.65
C2An.1n (T) Gauss/Matuyama   2.581   Top         40X-3, 05 284.2 330.68 287.42
Base         40X-3, 60 284.8 331.28 288.02

Polarity chron interpretation Age
(Ma)
  Hole U1417C Hole U1417D Hole U1417E
Core, section,
interval (cm)
Depth
CSF-A
(m)
Depth
CCSF-A
(m)
Depth
CCSF-B
(m)
Core, section,
interval (cm)
Depth
CSF-A
(m)
Depth
CCSF-A
(m)
Depth
CCSF-B
(m)
Core, section,
interval (cm)
Depth
CSF-A
(m)
Depth
CCSF-A
(m)
Depth
CCSF-B
(m)
C1n (B) Matuyama/Brunhes   0.781   Top                        
Base                        
C1r.1n (T) Jaramillo   0.988   Top 15H-6, 110 131.1 150.45 130.13925 16H-4, 22 133.52 153.2 132.52        
Base 16H-2, 105 134.55 155.04 134.1096 16H-5, 20 135 154.68 133.8        
C1r.1n (B) Jaramillo   1.072   Top         17H-2, 120 141 161.84 139.99        
Base         17H-3, 10 141.4 162.24 140.34        
C2n (T) Olduvai   1.778   Top                        
Base                        
C2n (B) Olduvai   1.945   Top                        
Base                        
C2r.1n (T) Reunion   2.128   Top         36H-2, 102 221.32 261.63 219.70        
Base         36H-3, 87 222.68 262.99 220.71        
C2r.1n (B) Reunion   2.148   Top                        
Base                        
C2An.1n (T) Gauss/Matuyama   2.581   Top         45X-1, 55 290.25 330.5 287.24 4R-4, 25 287.55 330.81 287.55
Base         45X-2, 30 291.4 331.65 288.39 4R-4, 57.5 287.88 331.14 287.88
C2An.3n (B) Gilbert/Gauss 3.596 Transition         53X     365 ±5        
C3n.1n (T) Cochiti 4.187 Transition         54X     375 ±5        
Middle of C3n.3n (B) Sidufjal to C3n.4n (B) Thvera 5.017 Transition         59X     422 ±5 8R to 9R     418 ±5
C3An.1n (T) 6.033 Transition                 14R to 15R     475 ±10
C3Bn (T) 7.14 Transition                 25R to 27R     585 ±20

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