Table 7.

Primary age model tie-point depths, ages, errors, and sedimentation rates for each LOC (using Gradstein et al. 2004*)

Tie-point rankingTie-point typeChron/biostratigraphic eventChron depth top (mbsf)Chron depth base (mbsf)Chron depth mid–point (mbsf)Depth error (±) mAge (Ma)
Speculative tie-pointBase?C11n.2n?178.21194.16186.197.9830.217
Speculative tie-pointBase?C12n?178.21194.16186.197.9831.116
Speculative tie-pointTop?C12n?215.74224.63220.194.4530.627
Tentative PrimaryHOReticulofenestra umbilicus (>14 µm)213.4831.05
Tentative PrimaryHOReticulofenestra umbilicus (>14 µm)214.190.7132.01
Tentative PrimaryHOReticulofenestra umbilicus (>14 µm)214.9032.97
Speculative tie-pointTop?C13n?215.74224.63220.194.4533.266
PrimaryTopC13r261.92279.93270.939.0133.738
Secondary possibleTopC13n.1n ( = C13r [0.31], Pälike et al. 2006)288.83299.18294.015.1834.066
Secondary possibleTopC15n288.83299.18294.015.1834.782
Secondary possibleTopC16n.1n288.83299.18294.015.1835.404
Secondary possibleBaseC13n.1n ( = C13r [0.41], Pälike et al. 2006)308.68309.16308.920.2434.164
Secondary possibleBaseC15n308.68309.16308.920.2435.043
Secondary possibleBaseC16n.1n308.68309.16308.920.2435.567
PrimaryTopC17n.1n342.35357.27349.817.4636.512
Secondary possibleBaseC17n.1n369.59386.30377.958.3537.235
Secondary possibleBaseC17n.2n369.59386.30377.958.3537.549
Secondary possibleTopC17n.3n390.75392.16391.460.7137.610
Secondary possibleBaseC17n.3n392.16393.73392.950.7837.771
PrimaryTopC18n.1n397.38400.49398.941.5638.032
Secondary possibleBaseC18n.1n434.77436.12435.450.6838.975
Secondary possibleTopC18n.2n436.12437.05436.590.4739.041
Secondary possibleBaseC18n.1n446.35448.65447.501.1538.975
Secondary possibleTopC18n.2n448.65449.38449.020.3639.041
PrimaryBaseC18n.2n451.67453.99452.831.1639.464
PrimaryTopC19n480.63483.39482.011.3840.439
PrimaryBaseC19n490.27490.36490.320.0540.671
Secondary possibleTopC20n601.46606.11603.792.3241.590
Tentative PrimaryMidpoint Age Between Top and Base C20nC20n601.46606.11603.792.3242.182
Secondary possibleBaseC20n606.11608.38607.251.1342.774
Secondary possibleTopC21n601.46606.11603.792.3245.346
Secondary possibleBaseC20n608.38618.43613.415.0342.774
PrimaryBaseC21n608.38618.43613.415.0347.235
Speculative tie-pointTop?C22n?619.55619.65619.600.0548.599
Speculative tie-pointBase?C22n?640.55640.60640.580.0249.427
Speculative tie-pointTop?C23n.1n?636.85636.90636.880.0250.730
Speculative tie-pointBase?C23n.2n?657.10657.15657.130.0251.901
PrimaryTopC24n.1n659.38686.24672.8113.4352.648
PrimaryBase (<)C24n.3n696.43696.43696.430.0053.808
Tie-point TopTie-point BaseMidpoint LOC sedimentation rate (m Ma−1)Top bounding LOC sedimentation rate (m Ma−1)Bottom bounding LOC sedimentation rate (m Ma−1)Maximum sedimentation rate (m Ma−1)Minimum sedimentation rate (m Ma−1)
HO Reticulofenestra umbilicus (>14 µm)Top C13r32.8363.0724.1986.5217.49
Top C13rTop C17n.1n28.4428.9927.8834.3722.50
Top C17n.1nTop C18n.1n32.3236.2028.4338.2526.39
Top C18n.1nBase C18n.2n37.6437.9137.3639.5335.74
Base C18n.2nTop C19n29.9329.7030.1532.5327.32
Top C19nBase C19n35.8041.5530.0441.9429.66
Base C19nMidpoint age between Top and Base C20n75.1055.08125.95126.0555.04
Base C21nTop C24n.1n10.979.4212.5314.387.57
Top C24n.1nBase C24n.3n20.3631.948.7831.948.78
  • *Ages of Chron boundaries from Gradstein et al. 2004 do not include age uncertainties.

  • Primary chron tie-points are used for the primary age model.

  • Tentative primary interpreted chron or biostratigraphic tie-points are used for the primary age model.

  • Secondary possible tie-points are not used in the age model.

  • Speculative tie-points from NRM discrete or from cryomagnetic data are not used in age model.

  • <, Younger than, for datum at base of studied section.