Table T5. Stratigraphic events used in this study to transfer depth series of natural gamma ray intensity to time series.

Stratigraphic event
Age
(Ma)
Core, section,
interval (cm)
Depth
(mbsf)
Middle
depth
(mbsf)
    186-1150A- 23.95/26.95 25.45
FO Emiliania huxleyi 0.248 3H-5, 75-76/3H-7, 75-76 46.33/55.73 51.03
LO Proboscia curvirostris 0.30 5H-CC/6H-CC 69.65/76.15 72.90
LO Stylatractus universus 0.43 8H-4, 45-47/9H-2, 45-47 72.61/73.21 72.91
B C1n (B Brunhes) 0.780 8H-6, 41/8H-6, 100 92.46/93.96 93.21
FO Gephyrocapsa parallela 0.940 10H-7, 75-76/11H-1, 76-77 95.16/98.16 96.66
LO Eucyrtidium matuyamai 1.03 11H-2, 46-48/11H-4, 46-48 124.7/126.8 125.75
FO Gephyrocapsa caribbeanica 1.71 14X-CC/15H-1, 75-76 122.82/136 129.41
LO Neogloboquadrina asanoi 1.8 14X-5, 42-44/16X-1, 40-44 139.36/139.6 139.48
LO Discoaster brouweri 1.95 16X-3, 76-77/16X-CC 184.6/185.1 184.85
T C2An (T Gauss) 2.581 21X-1, 100/21X-2, 92 250.6/251.2 250.90
LO Discoaster tamalis 2.82 27X-7, 10/11/27X-CC 313.14/314.73 313.94
T C3n.1n (T Cochiti) 4.180 34X-3, 103/34X-4, 112 428.66/434.31 431.49
B C3n.1n (B Cochiti) 4.290 46X-3, 135/47X-1, 21 626.08/626.74 626.41
T C3n.3n (T Sidufjall) 4.800 66X-6, 128/66X-7, 43 681.69/682.57 682.13
B C3n.3n (B Sidufjall) 4.890 72X-5, 142/72X-6, 67 723/729.41 726.21
T C3n.4n (T Thvera) 4.980 76X-7, 99/B-4R-1, 41    
    186-1150B-    
FO Spongurus pylomaticus 5.2 10R-2, 45-47/11R-2, 45-47 788.85/798.45 793.65
RD Lithelius barbatus 5.3 10R-2, 45-47/11R-2, 45-47 788.85/798.45 793.65
LO Lychnocanoma parallelipes 5.6 18R-2, 51-53/19R-2, 44-46 865.81/875.44 870.63
FO Lychnocanoma parallelipes 7.3 22R-CC/23R-CC 910.67/919.73 915.20
LCO Thalassionema schraderi 7.6 35R-CC/36R-CC 1031.5/1044.7 1038
FO Discoaster berggrenii 8.281 38R-CC/39R-1, 10-11 1058.6/1066.1 1062
LCO Denticulopsis simonsenii 8.6 40R-CC/41R-1, 68-71 1079.21/1085.93 1083
LO Denticulopsis dimorpha 9.16 43R-1, 69-71/43R-3, 71-72 1105.29/1108.26 1107
FO Denticulopsis dimorpha 9.9 48R-CC/49R-CC 1157.71/1170.57 1164
LCO Denticulopsis praedimorpha 11.5 Below 50R-CC
1180
1180

Notes: LO = last occurrence, FO = first occurrence, FCO = first common occurrence, LCO = last common occurrence. RI = rapid increase, RD = rapid decrease. T = top of chron, B = bottom of chron. Slash = between.