Depth δ 18 O (‰ VPDB) δ 13 C (‰ VPDB)


Supplement 3: GeoB20616-1 organic geochemical down-core data. n-Alkane isotopic composition and distribution descriptive parameters averaged. The elevated CPI values ranging from 3.8 to 14 indicate that the n alkanes within the terrestrial and marine samples were likely derived from nondegraded, terrestrial, higher plant material (Eglinton & Hamilton, 1967). We focus the discussion on the isotopic signals of the n -C31 alkane but note that the n -C29 and n -C33 alkanes reveal similar trends. 

Depth (cm) δ 13 C-n C29 (‰ VPDB) δ 13 C-n C31 (‰ VPDB) δ 13 C-n C33 (‰ VPDB) δD-n C29 (‰ VSMOW) δD-n C31 (‰ VSMOW) δD-n C33 (‰ VSMOW) CPI25-33

  
	Supplement 2: GeoB20616-1		
	downcore sea surface temperatures		
	(SST) calculated following Lea et al.		
	2003 using the listed ICP-OES		
	depth 2 -26.0	Mg/Ca -25.2	-23.3	SST (°C) -133	-147	-150
	12 (cm) 22	-25.6 -26.2	-24.8 -25.1	-23.2 -23.3	-140 -138	-147 -145	-150 -148
	32	-26.1	-25.0	-23.2	-144	-147	-151
	40.5 42 145.5 -26.0 52 -25.7 62 195.5 72 -25.9 82 -25.2 245.5 92 -24.9 102 -25.1 295.5 112 -25.2 122 -25.2	4.38 -24.8 3.77 -25.3 3.44 -24.9 -24.3 3.40 -24.5 -24.4 3.26 -24.5 -24.4	-23.0 -23.2 -23.0 -22.5 -22.4 -22.5 -22.6 -22.5	-130 27.5 -140 25.8 -137 -134 24.7 -136 -141 24.6 -136 24.1 -145	-146 -147 -150 -145 -150 -150 -150 -151	-148 -148 -150 -149 -151 -151 -150 -151
	345.5 132 -25.4 142 -25.5	3.89 -24.5 -24.9	-22.7 -22.8	-135 26.1 -141	-150 -147	-149 -147
	385.5 152 -24.8 162 -25.0	3.40 -24.1 -24.7	-22.2 -22.6	-139 24.6 -143	-148 -149	-145 -149
	395.5 172 -25.2 182 -24.9	2.97 -24.6 -24.2	-22.6 -22.3	-135 23.1 -138	-148 -149	-149 -151
	410.5 192 -25.0 202 -25.1	3.42 -24.3 -24.4	-22.4 -22.5	-139 24.7 -138	-147 -148	-147 -148
	420.5 212 -25.0 222 -24.7	3.20 -24.2 -24.1	-22.4 -22.2	-130 23.9 -137	-147 -150	-148 -150	11
	430.5 232 -25.0 242 -25.5	3.44 -24.2 -24.4	-22.4 -22.5	-135 24.7 -135	-151 -151	-149 -150
	440.5 252 -24.7 262 -25.3	3.53 -24.2 -24.3	-22.3 -22.5	-132 25.0 -132	-149 -148	-148 -148
	455.5 272 -25.4 470.5 282 -25.0 292 480.5 312 -25.2 322 -25.4 490.5 332 -25.4 342 -25.3	3.37 -24.3 3.35 -24.0 3.30 -24.3 -24.3 3.09 -24.6 -24.3	-22.4 -22.3 -22.4 -22.6 -22.6 -22.5	-131 24.5 -135 -138 24.5 -138 -130 24.3 -132 23.5 -142	-147 -145 -146 -144 -145 -145 -149	-148 -149 -148 -148 -147 -147 -151
	505.5 352 -25.5 362 -25.9	3.28 -24.5 -25.2	-22.6 -23.2	-127 24.2 -141	-144 -145	-147 -150
	510.5 372 -25.1 382 -25.1	3.44 -24.0 -24.2	-22.1 -22.3	-133 24.8 -132	-148 -148	-152 -149
	520.5 392 -25.0 402 -24.9	3.33 -24.3 -23.9	-22.6 -22.2	-143 24.4 -137	-151 -152	-153 -152
	525.5 412 -24.8 422 -24.8	3.26 -23.9 -23.9	-22.1 -22.0	-143 24.2 -144	-153 -153	-155 -153
	535.5 432 -24.9 442 -25.0	3.60 -23.9 -24.0	-22.1 -22.2	-142 25.3 -136	-152 -151	-154 -152
	545.5 452 -25.3 462 -24.9	3.28 -24.1 -23.9	-22.4 -22.2	-138 24.2 -137	-154 -153	-154 -154
	555.5 472 -25.0 482 -24.7	3.60 -23.9 -23.8	-22.0 -22.0	-143 25.3 -145	-150 -150	-152 -152
	565.5 492 -25.0 575.5 502 -24.7 512 -25.0 585.5 522 -24.9 532 -24.9 595.5 542 -24.9 552 -24.1 605.5 562 -24.7 572 -24.4	3.48 -24.0 3.61 -24.0 -24.1 3.50 -24.3 -23.9 3.24 -23.9 -24.3 3.56 -23.6 -23.6	-22.1 -22.1 -22.1 -22.2 -22.0 -22.1 -22.7 -22.0 -21.9	-138 24.9 -142 -145 25.3 -143 -142 25.0 -141 -139 24.1 -141 25.1 -137	-153 -153 -152 -154 -152 -152 -151 -154 -151	-154 -153 -153 -155 -154 -155 -154 -155 -153
	615.5 582 -24.6 592 -24.3	3.55 -23.6 -23.6	-22.1 -22.0	-147 25.1 -147	-153 -153	-154 -155
	630.5 602 -24.8 612 -24.7	4.04 -23.7 -23.6	-21.9 -22.1	-138 26.6 -147	-153 -156	-155 -156
	640.5 622 -25.1 632 -25.1	3.22 -24.1 -24.0	-22.3 -22.3	-145 24.0 -138	-151 -150	-152 -152
	655.5 642 -25.0 652 -25.1	3.30 -23.9 -24.1	-22.1 -22.4	-134 24.3 -139	-147 -149	-148 -148
	665.5 662 -25.1 672 -25.4	3.82 -24.1 -24.5	-22.4 -22.8	-136 25.9 -132	-148 -149	-149 -148
	675.5 682 -25.4 692 -24.8	3.62 -23.9 -24.0	-22.5 -22.4	-146 25.3 -134	-153 -151	-153 -152
	685.5 702 -25.0 712 -24.8	3.71 -24.1 -24.1	-22.6 -22.5	-134 25.6 -134	-150 -151	-151 -153
	695.5 722 -25.1 705.5 732 -25.3 742 -25.6 715.5 752 -25.4 762 -25.4 725.5 772 -25.4 782 -26.3	3.61 -24.0 3.70 -24.2 -24.1 3.66 -24.2 -24.1 3.80 -24.1 -24.5	-22.6 -22.8 -22.7 -22.6 -22.6 -22.6 -23.0	-144 25.3 -138 -138 25.6 -138 -140 25.4 -145 25.9 -137	-151 -154 -153 -153 -152 -151 -147	-152 -156 -155 -156 -153 -153 -150
	735.5 793 -25.8 802 -25.2	3.97 -24.4 -24.2	-22.7 -22.3	-142 26.4 -153	-151 -157	-154 -159
	745.5 812 -25.3 822 -25.3	3.78 -24.0 -23.9	-22.3 -22.3	-137 25.8 -149	-157 -156	-159 -159
	765.5 832 -24.0 842 -25.5	3.74 -23.8 -24.2	-22.2 -22.6	-137 25.7 -144	-154 -151	-155 -153
	795.5 852 -25.6 862 -26.2	3.46 -24.5 -24.9	-22.8 -23.1	-141 24.8 -142	-147 -146	-152 -151
	805.5 872 -25.9 882 -26.2	3.64 -24.5 -24.6	-22.8 -22.9	-146 25.4 -147	-156 -157	-157 -157
	830.5 892 -25.8 902 -26.1	3.72 -24.4 -24.5	-22.7 -22.9	-151 25.6 -150	-158 -159	-161 -160
	865.5 912 -26.4 922 -26.6	3.72 -25.0 -25.2	-22.9 -23.1	-139 25.6 -141	-154 -155	-157 -158
	885.5 932 -26.3	3.75 -25.7	-23.6	25.7 -134	-144	-146
	915.5	4.22		27.1
Depth δ 18 O (‰ VPDB) δ 13 C (‰ VPDB)