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Table T14. Magnetostratigraphic tie points, Site U1409.

Chron boundary Age
(Ma)
Hole U1409A
Top Bottom Mid-point
(mbsf)
Core, section,
interval (cm)
Depth
(mbsf)
Core, section,
interval (cm)
Depth
(mbsf)
    342-U1409A- 342-U1409A-
C1n (Brunhes)/C1r.1r (Matuyama) 0.781 2H-6, 35.0 8.95 2H-6, 37.5 8.98 8.97
C6Cr/C7n.1n 23.962 3H-2, 52.5 12.63 3H-2, 55.0 12.65 12.64
C7n.1n/C7n.1r 24.000 3H-2, 62.5 12.73 3H-2, 65.0 12.75 12.74
C7n.1r/C7n.2n 24.109 3H-2, 115.0 13.25 3H-2, 122.5 13.33 13.29
C7n.2n/C7r 24.474 3H-3, 92.5 14.53 3H-3, 97.5 14.58 14.56
C7r/C7An 24.761 3H-4, 72.5 15.83 3H-4, 85.0 15.95 15.89
C7An/C7Ar 24.984 3H-5, 57.5 17.18 3H-5, 60.0 17.20 17.19
C7Ar/C8n.1n 25.099 3H-5, 67.5 17.28 3H-5, 72.5 17.33 17.31
C8n.1n/C8n.1r 25.264 3H-6, 22.5 18.33 3H-6, 25.0 18.35 18.34
C8n.1r/C8n.2n 25.304 3H-6, 32.5 18.43 3H-6, 35.0 18.45 18.44
C8n.2n/C8r 25.987 3H-7, 20.0 19.80 3H-7, 25.0 19.85 19.83
C8r/C9n 26.420 3H-7, 55.0 20.15 3H-7, 62.5 20.23 20.19
C9n/C9r 27.439 NI NI NI NI NI
C9r/C10n.1n 27.859 NI NI NI NI NI
C10n.1n/C10n.1r 28.087 4H-2, 60.0 22.20 4H-2, 65.0 22.25 22.23
C10n.1r/C10n.2n 28.141 4H-2, 75.0 22.35 4H-2, 77.5 22.38 22.37
C10n.2n/C10r 28.278 4H-2, 105.0 22.65 4H-2, 112.5 22.73 22.69
C10r/C11n.1n 29.183 4H-4, 97.5 25.58 4H-4, 105.0 25.65 25.62
C11n.1n/C11n.1r 29.477 4H-5, 15.0 26.25 4H-5, 20.0 26.3 26.28
C11n.1r/C11n.2n 29.527 4H-5, 32.5 26.43 4H-5, 37.5 26.48 26.46
C11n.2n/C11r 29.970 4H-5, 97.5 27.08 4H-5, 127.5 27.38 27.23
C11r/C12n 30.591 4H-6, 50.0 28.10 4H-6, 55.0 28.15 28.13
C12n/C12r 31.034 4H-6, 130.0 28.10 4H-7, 10.0 29.20 28.65
C12r/C13n 33.157 NI NI NI NI NI
C13n/C13r 33.705 5H-2, 62.5 31.73 5H-2, 102.5 32.13 31.93
C19r/C20n 42.301 6H-5, 105.0 46.15 6H-5, 125.0 46.35 46.25
C20n/C20r 43.432 7H-7, 10.0 57.72 7H-7, 55.0 58.17 57.95
C20r/C21n 45.724 11H-1, 110.0 87.70 11H-2, 17.5 88.28 87.99
C21n/C21r 47.349 12H-3, 75.0 99.85 12H-5, 75.0 102.85 101.35
C21r/C22n 48.566 13H-1, 120.0 106.80 13H-2, 67.5 107.81 107.31
C22n/C22r 49.344 13H-4, 85.0 110.99 13H-4, 102.5 111.17 111.08

Ages from Gradstein et al. (2012). NI = not identified.

Chron boundary Age
(Ma)
Hole U1409B
Top Bottom Mid-point
(mbsf)
Core, section,
interval (cm)
Depth
(mbsf)
Core, section,
interval (cm)
Depth
(mbsf)
C1n (Brunhes)/C1r.1r (Matuyama) 0.781 2H-1, 140.0 9.70 2H-2, 22.5 10.03 9.87
C6Cr/C7n.1n 23.962 2H-5, 17.5 14.48 2H-5, 25.0 14.55 14.52
C7n.1n/C7n.1r 24.000 2H-5, 140.0 15.70 2H-6, 22.5 16.03 15.87
C7n.1r/C7n.2n 24.109 2H-6, 140.0 17.20 2H-7, 10.0 17.40 17.30
C7n.2n/C7r 24.474 3H-1, 25.0 18.05 3H-1, 32.5 18.13 18.09
C7r/C7An 24.761 NI NI NI NI NI
C7An/C7Ar 24.984 NI NI NI NI NI
C7Ar/C8n.1n 25.099 NI NI NI NI NI
C8n.1n/C8n.1r 25.264 NI NI NI NI NI
C8n.1r/C8n.2n 25.304 NI NI NI NI NI
C8n.2n/C8r 25.987 NI NI NI NI NI
C8r/C9n 26.420 NI NI NI NI NI
C9n/C9r 27.439 NI NI NI NI NI
C9r/C10n.1n 27.859 NI NI NI NI NI
C10n.1n/C10n.1r 28.087 3H-5, 60.0 24.40 3H-5, 72.5 24.53 24.47
C10n.1r/C10n.2n 28.141 3H-5, 85.0 24.65 3H-5, 90.0 24.70 24.68
C10n.2n/C10r 28.278 3H-5, 102.5 24.83 3H-5, 110.0 24.90 24.87
C10r/C11n.1n 29.183 3H-7, 52.5 27.33 3H-7, 62.5 27.43 27.38
C11n.1n/C11n.1r 29.477 NI NI NI NI NI
C11n.1r/C11n.2n 29.527 NI NI NI NI NI
C11n.2n/C11r 29.970 4H-1, 117.5 28.48 4H-1, 140.0 28.70 28.59
C11r/C12n 30.591 4H-2, 72.5 29.53 4H-2, 82.5 29.63 29.58
C12n/C12r 31.034 4H-3, 42.5 30.73 4H-3, 47.5 30.78 30.76
C12r/C13n 33.157 4H-4, 140.0 33.20 4H-5, 20.0 33.50 33.35
C19r/C20n 42.301 6H-3, 80.0 50.10 6H-4, 92.5 51.73 50.92
C20n/C20r 43.432 7H-1, 137.5 57.18 7H-2, 110.0 58.40 57.79
C20r/C21n 45.724 10H-2, 90.0 86.7 10H-3, 85.0 88.15 87.43
C21n/C21r 47.349 11H-6, 85.0 102.15 11H-6, 95.0 102.25 102.20
C21r/C22n 48.566 12H-4, 82.5 108.63 12H-4, 120.0 109.00 108.82
C22n/C22r 49.344 12H-6, 117.5 111.98 12H-7, 17.5 112.28 112.13

Chron boundary Age
(Ma)
Hole U1409C
Top Bottom Mid-point
(mbsf)
Core, section,
interval (cm)
Depth
(mbsf)
Core, section,
interval (cm)
Depth
(mbsf)
C1n (Brunhes)/C1r.1r (Matuyama) 0.781 2H-2, 87.5 8.68 2H-2, 122.5 9.03 8.86
C6Cr/C7n.1n 23.962 2H-5, 135.0 13.65 2H-6, 10.0 13.90 13.78
C7n.1n/C7n.1r 24.000 2H-6,100.0 14.80 2H-7, 12.5 15.05 14.93
C7n.1r/C7n.2n 24.109 NI NI NI NI NI
C7n.2n/C7r 24.474 NI NI NI NI NI
C7r/C7An 24.761 NI NI NI NI NI
C7An/C7Ar 24.984 NI NI NI NI NI
C7Ar/C8n.1n 25.099 NI NI NI NI NI
C8n.1n/C8n.1r 25.264 NI NI NI NI NI
C8n.1r/C8n.2n 25.304 3H-2, 140.0 18.70 3H-3, 10.0 18.90 18.80
C8n.2n/C8r 25.987 3H-3, 80.0 19.60 3H-3, 87.5 19.68 19.64
C8r/C9n 26.420 NI NI NI NI NI
C9n/C9r 27.439 NI NI NI NI NI
C9r/C10n.1n 27.859 NI NI NI NI NI
C10n.1n/C10n.1r 28.087 3H-4, 127.5 21.58 3H-4, 140.0 21.70 21.64
C10n.1r/C10n.2n 28.141 3H-5, 10.0 21.90 3H-5, 15.0 21.95 21.93
C10n.2n/C10r 28.278 3H-5, 42.5 22.23 3H-5, 57.5 22.38 22.31
C10r/C11n.1n 29.183 4H-1, 47.5 25.78 4H-1, 57.5 25.88 25.83
C11n.1n/C11n.1r 29.477 4H-1, 87.5 26.18 4H-1, 97.5 26.28 26.23
C11n.1r/C11n.2n 29.527 4H-1, 105.0 26.35 4H-1, 117.5 26.48 26.42
C11n.2n/C11r 29.970 4H-2, 42.5 27.23 4H-2, 75.0 27.55 27.39
C11r/C12n 30.591 4H-2, 140.0 28.20 4H-2, 17.5 28.48 28.34
C12n/C12r 31.034 4H-3, 95.0 29.25 4H-3, 130.0 29.60 29.43
C12r/C13n 33.157 NI NI NI NI NI
C13n/C13r 33.705 5H-2, 37.5 32.68 5H-2, 80.0 33.10 32.89
C19r/C20n 42.301 6H-5, 95.0 47.25 6H-6, 10.0 47.90 47.58
C20n/C20r 43.432 7H-6, 15.0 57.45 8H-3, 10.0 62.40 59.93
C20r/C21n 45.724 10H-4, 140.0 84.20 10H-5, 12.5 84.43 84.31
C21n/C21r 47.349 12H-3, 22.5 100.53 12H-3, 140.0 101.70 101.11
C21r/C22n 48.566 13H-3, 102.5 110.83 13H-3, 117.5 110.98 110.90
C22n/C22r 49.344 13H-6, 87.5 115.18 13H-6, 95.0 115.25 115.21

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