Citation:

PANGAEA.974600

Name: Clumped isotopic composition of oxygen in WDC06A ice core 8-18ka
Published: 2025-01-23
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Antarctica; clumped isotope; deglacial; Ice core

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Published: 2025-01-23 • DOI registered: 2025-02-21

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Abstract:

Laboratory O2 clumped-isotopic composition data (as Δ36 values) for air occluded in ice core spanning gas ages of 8000-18000 ky BP. O2 clumped isotopic composition data was generated between 2017-2022 at Rice University, Houston, TX, using a Nu Perspective Isotope Ratio Mass Spectrometer (IRMS). Reported data was measured in an Antarctic ice core: West Antarctic Ice Sheet Divide Ice Core (WDC06A) . The chronology and gas ages for the core were obtained from Sigl et al., 2016 (doi:10.5194/cp-12-769-2016) and Buizert et al., 2015 (doi:10.5194/cp-11-153-2015).

In addition to O2 clumped isotope data, measured δ18Ο data are also reported. Gas loss corrections to generated Δ36 data are made using previously reported raw δ18O data in Seltzer et al., 2017 (doi:10.5194/cp-13-1323-2017) and established gas loss corrections in Yeung et al., 2012 and Banerjee et al. 2022.

Keyword(s):

Antarctica; clumped isotope; deglacial; Ice core

Source:

Buizert, Christo; Cuffey, Kurt M; Severinghaus, Jeffrey P; Baggenstos, Daniel; Fudge, Tyler J; Steig, Eric J; Markle, Bradley R; Winstrup, Mai; Rhodes, Rachael H; Brook, Edward J; Sowers, Todd A; Clow, Gary D; Cheng, Hai; Edwards, Ross L; Sigl, Michael; McConnell, Joseph R; Taylor, Kendrick C (2015): The WAIS Divide deep ice core WD2014 chronology - Part 1: Methane synchronization (68–31 ka BP) and the gas age–ice age difference. Climate of the Past, 11(2), 153-173, https://doi.org/10.5194/cp-11-153-2015

Seltzer, Alan; Ng, Jessica; Aeschbach, Werner; Kipfer, Rolf; Kulongoski, Justin T; Severinghaus, Jeffrey P; Stute, Martin (2021): Widespread six degrees Celsius cooling on land during the Last Glacial Maximum. Nature, https://doi.org/10.1038/s41586-021-03467-6

Sigl, Michael; Fudge, Tyler J; Winstrup, Mai; Cole-Dai, Jihong; Ferris, David G; McConnell, Joseph R; Taylor, Kendrick C; Welten, Kees C; Woodruff, Thomas E; Adolphi, Florian; Bisiaux, Marion M; Brook, Edward J; Buizert, Christo; Caffee, Marc W; Dunbar, Nelia W; Edwards, Ross L; Geng, Lei; Iverson, Nels; Koffman, Bess G; Layman, Lawrence; Maselli, Olivia J; McGwire, Kenneth C; Muscheler, Raimund; Nishiizumi, Kunihiko; Pasteris, Daniel R; Rhodes, Rachael H; Sowers, Todd A (2016): The WAIS Divide deep ice core WD2014 chronology – Part 2: Annual-layer counting (0–31 ka BP). Climate of the Past, 12(3), 769-786, https://doi.org/10.5194/cp-12-769-2016

References:

Banerjee, Asmita; Yeung, Laurence Y; Murray, Lee T; Tie, Xin; Tierney, Jessica E; LeGrande, Allegra N (2022): Clumped-Isotope Constraint on Upper-Tropospheric Cooling During the Last Glacial Maximum. AGU Advances, 3(4), https://doi.org/10.1029/2022AV000688

Yeung, Laurence Y; Young, Edward D; Schauble, Edwin A (2012): Measurements of 18 O 18 O and 17 O 18 O in the atmosphere and the role of isotope-exchange reactions. Journal of Geophysical Research, 117(D18), 2012JD017992, https://doi.org/10.1029/2012JD017992

Funding:

National Science Foundation (NSF), grant/award no. AGS-2002414 : P2C2-Interrogating the Free Troposphere during the Last Deglaciation

National Science Foundation (NSF), grant/award no. AGS-2002422 : P2C2-Interrogating the Free Troposphere during the Last Deglaciation

Coverage:

Latitude: -79.467630 * Longitude: -112.086480

Date/Time Start: 2006-12-09T00:00:00 * Date/Time End: 2006-12-09T00:00:00

Minimum DEPTH, ice/snow: 1648.9240 m * Maximum DEPTH, ice/snow: 2457.5380 m

Event(s):

WDC06A (WAIS Divide Ice Core) * Latitude: -79.467630 * Longitude: -112.086480 * Date/Time: 2006-12-09T00:00:00 * Elevation: 1766.0 m * Location: Antarctica, west * Method/Device: Ice drill (ICEDRILL) * Comment: Core diameter: 10 cm; Top depth: 0 m; Bottom depth: 114 m; Deep core

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Core	Core		Banerjee, Asmita
2	Sample code/label	Sample label		Banerjee, Asmita		tube
3	Depth, ice/snow, top/minimum	Depth ice/snow top	m	Banerjee, Asmita
4	Depth, ice/snow, bottom/maximum	Depth ice/snow bot	m	Banerjee, Asmita
5	DEPTH, ice/snow	Depth ice/snow	m	Banerjee, Asmita		Geocode
6	Gas age	Gas age	ka BP	Banerjee, Asmita		source dataset doi:10.5194/cp-12-769-2016 and doi:10.5194/cp-11-153-2015
7	δ18O	δ18O	‰	Banerjee, Asmita		measured; replicate 1
8	Δ36, oxygen clumped isotope	Δ36	‰	Banerjee, Asmita		measured; replicate 1
9	δ18O	δ18O	‰	Banerjee, Asmita		measured; replicate 2
10	Δ36, oxygen clumped isotope	Δ36	‰	Banerjee, Asmita		measured; replicate 2
11	δ18O	δ18O	‰	Banerjee, Asmita		measured; replicate 3
12	Δ36, oxygen clumped isotope	Δ36	‰	Banerjee, Asmita		measured; replicate 3
13	δ18O	δ18O	‰	Banerjee, Asmita		source dataset: doi:10.1038/s41586-021-03467-6
14	Remote sensing reflectance at 387.5 nm	Rrs_387.5	1/sr	Banerjee, Asmita	Corrected after Yeung etal., 2012	corrected using the equation Δ36,corr = Δ36,meas + (δ18Omeas - δ18Oreported)*0.0085; replicate 1
15	Remote sensing reflectance at 387.5 nm	Rrs_387.5	1/sr	Banerjee, Asmita	Corrected after Yeung etal., 2012	corrected using the equation Δ36,corr = Δ36,meas + (δ18Omeas - δ18Oreported)*0.0085; replicate 2
16	Remote sensing reflectance at 387.5 nm	Rrs_387.5	1/sr	Banerjee, Asmita	Corrected after Yeung etal., 2012	corrected using the equation Δ36,corr = Δ36,meas + (δ18Omeas - δ18Oreported)*0.0085; replicate 3

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

1368 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Core	2 Sample label (tube)	3 Depth ice/snow top [m]	4 Depth ice/snow bot [m]	5 Depth ice/snow [m]	6 Gas age [ka BP] (source dataset doi:10.5194/cp...)	7 δ18O [‰] (measured; replicate 1)	8 Δ36 [‰] (measured; replicate 1)	9 δ18O [‰] (measured; replicate 2)	10 Δ36 [‰] (measured; replicate 2)	11 δ18O [‰] (measured; replicate 3)	12 Δ36 [‰] (measured; replicate 3)	13 δ18O [‰] (source dataset: doi:10.1038/s...)	14 Rrs_387.5 [1/sr] (corrected using the equation ...)	15 Rrs_387.5 [1/sr] (corrected using the equation ...)	16 Rrs_387.5 [1/sr] (corrected using the equation ...)
WDC06A	1651	1648.884	1648.964	1648.9240	8367.826	0.490	2.004	NaN	NaN	NaN	NaN	0.367442252	2.005	NaN	NaN
WDC06A	1658	1656.101	1656.181	1656.1410	8430.479	0.564	2.033	NaN	NaN	NaN	NaN	0.381656165	2.035	NaN	NaN
WDC06A	1686	1684.130	1684.210	1684.1700	8679.184	0.521	2.022	NaN	NaN	NaN	NaN	0.443470671	2.023	NaN	NaN
WDC06A	1707	1704.933	1705.013	1704.9730	8870.388	0.581	2.074	NaN	NaN	NaN	NaN	0.425715224	2.075	NaN	NaN
WDC06A	1714	1712.130	1712.150	1712.1380	8937.290	0.631	2.027	NaN	NaN	NaN	NaN	0.424436113	2.029	NaN	NaN
WDC06A	1721	1718.950	1719.030	1718.9880	9002.078	NaN	NaN	0.675	2.034	NaN	NaN	0.447328343	NaN	2.036	NaN
WDC06A	1728	1726.310	1726.390	1726.3510	9072.908	NaN	NaN	0.658	2.025	NaN	NaN	0.482105053	NaN	2.026	NaN
WDC06A	1735	1732.960	1733.040	1733.0000	9137.403	NaN	NaN	0.647	2.045	NaN	NaN	0.509791413	NaN	2.046	NaN
WDC06A	1742	1740.160	1740.260	1740.2060	9207.009	0.689	2.079	0.588	2.067	NaN	NaN	0.533313327	2.080	2.067	NaN
WDC06A	1749	1746.970	1747.050	1747.0080	9273.278	0.726	2.050	NaN	NaN	NaN	NaN	0.550367151	2.051	NaN	NaN
WDC06A	1763	1761.130	1761.210	1761.1660	9406.785	0.671	2.119	0.614	2.053	NaN	NaN	0.572064632	2.120	2.053	NaN
WDC06A	1770	1768.262	1768.342	1768.3020	9473.822	0.603	2.059	NaN	NaN	NaN	NaN	0.578155632	2.059	NaN	NaN
WDC06A	1777	1774.990	1775.070	1775.0280	9537.146	0.780	2.020	0.630	1.963	NaN	NaN	0.582823944	2.022	1.963	NaN
WDC06A	1791	1788.990	1789.070	1789.0280	9671.171	0.788	2.028	NaN	NaN	NaN	NaN	0.609327645	2.030	NaN	NaN
WDC06A	1805	1803.030	1803.110	1803.0690	9808.227	0.773	2.075	0.774	2.064	NaN	NaN	0.654140672	2.076	2.065	NaN
WDC06A	1819	1817.010	1817.090	1817.0520	9946.782	0.914	2.034	0.796	1.995	NaN	NaN	0.681578175	2.036	1.996	NaN
WDC06A	1833	1831.020	1831.100	1831.0620	10085.874	0.901	2.003	NaN	NaN	NaN	NaN	0.696859739	2.005	NaN	NaN
WDC06A	1840	1838.531	1838.611	1838.5710	10162.268	0.993	1.961	NaN	NaN	NaN	NaN	0.718034397	NaN	NaN	NaN
WDC06A	1847	1845.040	1845.120	1845.0800	10228.084	1.042	2.038	NaN	NaN	NaN	NaN	0.752057652	1.963	NaN	NaN
WDC06A	1861	1859.062	1859.142	1859.1020	10370.127	1.003	1.996	0.778	1.960	NaN	NaN	0.886057195	2.040	NaN	NaN
WDC06A	1875	1873.080	1873.160	1873.1240	10511.749	1.106	2.102	0.988	2.094	NaN	NaN	1.009168552	1.997	1.959	NaN
WDC06A	1882	1880.306	1880.386	1880.3460	10585.271	0.834	2.094	1.029	2.087	NaN	NaN	1.019520248	2.103	2.094	NaN
WDC06A	1889	1887.610	1887.690	1887.6480	10659.090	1.158	2.030	NaN	2.008	NaN	NaN	0.965508201	2.092	2.087	NaN
WDC06A	1903	1901.130	1901.210	1901.1710	10794.313	0.824	2.000	NaN	2.035	NaN	NaN	0.932755161	2.032	NaN	NaN
WDC06A	1917	1915.150	1915.230	1915.1910	10931.284	0.945	1.998	1.116	2.056	NaN	NaN	1.042076860	1.999	NaN	NaN
WDC06A	1931	1929.180	1929.260	1929.2180	11066.274	1.366	2.090	1.106	2.036	NaN	NaN	1.072056067	1.997	2.057	NaN
WDC06A	1945	1943.190	1943.270	1943.2340	11197.056	NaN	NaN	1.360	2.013	NaN	NaN	1.161998586	2.092	2.036	NaN
WDC06A	1952	1950.810	1950.890	1950.8500	11265.339	1.337	1.904	NaN	NaN	NaN	NaN	1.198825715	NaN	2.015	NaN
WDC06A	1959	1958.020	1958.100	1958.0590	11330.046	1.383	2.081	NaN	NaN	NaN	NaN	1.217205748	1.905	NaN	NaN
WDC06A	1966	1964.334	1964.414	1964.3740	11385.663	NaN	1.961	1.133	2.030	NaN	NaN	1.220878646	2.082	NaN	NaN
WDC06A	1973	1971.230	1971.310	1971.2680	11444.871	1.385	2.029	NaN	NaN	NaN	NaN	1.225450457	NaN	2.029	NaN
WDC06A	1987	1985.860	1985.940	1985.9020	11571.738	1.580	1.970	NaN	NaN	NaN	NaN	1.318656745	2.030	NaN	NaN
WDC06A	1994	1992.338	1992.418	1992.3780	11632.544	1.572	2.032	1.273	2.037	NaN	NaN	1.303514933	1.972	NaN	NaN
WDC06A	2001	1999.240	1999.320	1999.2820	11701.867	1.045	2.035	1.315	2.002	NaN	NaN	1.272002384	2.034	2.037	NaN
WDC06A	2008	2006.341	2006.421	2006.3810	11776.401	1.291	2.096	NaN	NaN	NaN	NaN	1.252538427	2.033	2.002	NaN
WDC06A	2015	2013.750	2013.830	2013.7860	11856.695	1.542	2.009	NaN	NaN	NaN	NaN	1.258724761	2.096	NaN	NaN
WDC06A	2022	2020.340	2020.420	2020.3840	11930.780	1.307	2.001	1.245	2.000	NaN	NaN	1.241146213	2.011	NaN	NaN
WDC06A	2029	2027.480	2027.560	2027.5190	12009.597	1.401	2.094	1.504	2.066	NaN	NaN	1.128760244	2.002	2.000	NaN
WDC06A	2036	2035.161	2035.241	2035.2010	12094.925	1.382	2.009	1.280	2.012	NaN	NaN	1.264213330	2.096	2.069	NaN
WDC06A	2043	2041.430	2041.510	2041.4710	12162.392	1.514	2.106	1.491	1.945	NaN	NaN	1.438611396	2.010	2.012	NaN
WDC06A	2050	2048.246	2048.326	2048.2860	12237.994	NaN	NaN	1.313	2.032	NaN	NaN	1.406577904	2.107	1.945	NaN
WDC06A	2064	2062.239	2062.319	2062.2790	12391.661	1.320	2.057	NaN	NaN	NaN	NaN	1.269692034	NaN	2.031	NaN
WDC06A	2071	2069.470	2069.550	2069.5070	12471.242	1.607	2.046	1.458	2.051	NaN	NaN	1.293254415	2.057	NaN	NaN
WDC06A	2078	2076.350	2076.430	2076.3900	12548.530	NaN	NaN	1.272	2.049	NaN	NaN	1.329693082	2.049	2.052	NaN
WDC06A	2085	2083.260	2084.340	2083.8040	12630.405	1.698	2.022	NaN	NaN	NaN	NaN	1.342528649	NaN	2.049	NaN
WDC06A	2092	2090.240	2090.320	2090.2810	12701.355	1.416	2.067	1.517	2.108	NaN	NaN	1.343082099	2.025	NaN	NaN
WDC06A	2106	2104.240	2104.320	2104.2830	12849.377	1.408	2.073	1.461	1.876	NaN	NaN	1.379044297	2.068	2.109	NaN
WDC06A	2113	2111.470	2111.550	2111.5140	12923.808	1.546	2.089	1.805	1.989	NaN	NaN	1.422010097	2.073	1.877	NaN
WDC06A	2120	2118.242	2118.322	2118.2820	12994.010	1.134	2.050	1.312	2.096	NaN	NaN	1.456558782	2.090	1.992	NaN
WDC06A	2127	2125.470	2125.550	2125.5140	13070.427	1.557	2.005	1.673	2.035	NaN	NaN	1.463797395	2.047	2.095	NaN
WDC06A	2134	2132.242	2132.322	2132.2820	13143.999	1.631	1.955	NaN	NaN	NaN	NaN	1.449620823	2.006	2.037	NaN
WDC06A	2141	2139.470	2139.550	2139.5105	13224.515	1.726	2.006	1.669	2.032	NaN	NaN	1.457057884	1.957	NaN	NaN
WDC06A	2155	2153.740	2153.820	2153.7770	13381.692	1.667	2.073	1.619	2.003	NaN	NaN	1.496670861	2.008	2.034	NaN
WDC06A	2169	2167.640	2167.720	2167.6760	13533.232	1.379	2.103	1.787	1.976	NaN	NaN	1.568405170	2.074	2.004	NaN
WDC06A	2176	2174.235	2174.335	2174.2850	13604.528	1.777	2.049	NaN	NaN	NaN	NaN	1.587939207	2.101	1.978	NaN
WDC06A	2183	2181.470	2181.550	2181.5050	13684.326	1.596	2.094	1.848	2.032	NaN	NaN	1.578950200	2.051	NaN	NaN
WDC06A	2197	2195.460	2195.540	2195.5030	13847.073	2.102	2.037	1.732	1.972	NaN	NaN	1.635367081	2.094	2.034	NaN
WDC06A	2204	2202.461	2202.541	2202.5010	13932.187	1.837	2.147	NaN	NaN	NaN	NaN	1.650931755	2.041	1.973	NaN
WDC06A	2211	2209.460	2209.540	2209.5010	14015.206	1.929	2.010	NaN	NaN	NaN	NaN	1.661988877	2.149	NaN	NaN
WDC06A	2225	2223.250	2223.330	2223.2910	14177.776	2.133	2.099	2.090	2.016	NaN	NaN	1.780000000	2.012	NaN	NaN
WDC06A	2246	2244.961	2245.054	2245.0075	14416.656	2.048	2.073	NaN	NaN	NaN	NaN	1.786985766	2.102	2.019	NaN
WDC06A	2253	2251.460	2251.560	2251.5130	14487.758	2.030	2.048	1.987	2.079	NaN	NaN	1.797457588	2.075	NaN	NaN
WDC06A	2260	2258.394	2258.474	2258.4340	14565.704	1.974	1.973	1.764	2.054	NaN	NaN	1.801204598	2.050	2.081	NaN
WDC06A	2267	2265.750	2265.830	2265.7900	14648.060	1.990	2.086	NaN	NaN	NaN	NaN	1.823190501	1.974	2.054	NaN
WDC06A	2274	2272.460	2272.540	2272.5000	14726.963	NaN	NaN	1.977	2.040	NaN	NaN	1.854067729	2.087	NaN	NaN
WDC06A	2281	2279.460	2279.540	2279.4960	14810.438	2.031	2.084	2.126	1.990	NaN	NaN	1.823772938	NaN	2.041	NaN
WDC06A	2295	2293.720	2293.800	2293.7580	14982.780	2.039	2.114	2.303	2.079	NaN	NaN	1.816834203	2.086	1.993	NaN
WDC06A	2302	2300.450	2300.530	2300.4870	15063.661	1.725	2.021	1.901	1.994	NaN	NaN	1.828508923	2.116	2.083	NaN
WDC06A	2309	2307.450	2307.530	2307.4860	15148.733	2.056	2.041	2.007	2.107	NaN	NaN	1.830016263	2.020	1.995	NaN
WDC06A	2316	2314.975	2315.055	2315.0150	15236.703	2.021	2.131	NaN	NaN	NaN	NaN	1.830492350	2.043	2.109	NaN
WDC06A	2323	2321.450	2321.530	2321.4880	15324.673	2.229	2.057	2.184	1.972	NaN	NaN	1.822191069	2.133	NaN	NaN
WDC06A	2330	2328.451	2328.531	2328.4910	15420.635	1.964	2.122	1.748	2.046	NaN	NaN	1.790391351	2.060	1.975	NaN
WDC06A	2337	2335.450	2335.530	2335.4910	15519.588	1.995	2.103	NaN	NaN	NaN	NaN	1.814666368	2.123	2.045	NaN
WDC06A	2344	2342.570	2342.650	2342.6050	15624.639	1.900	2.144	NaN	NaN	NaN	NaN	1.834416292	2.104	NaN	NaN
WDC06A	2351	2349.450	2349.530	2349.4900	15729.541	2.027	2.123	2.081	2.047	NaN	NaN	1.833862012	2.145	NaN	NaN
WDC06A	2358	2356.447	2356.527	2356.4870	15837.783	1.934	2.266	1.853	2.246	NaN	NaN	1.824741991	2.125	2.049	NaN
WDC06A	2365	2363.240	2363.320	2363.2810	15944.948	2.045	2.163	2.006	2.049	NaN	NaN	1.800220513	2.267	2.246	NaN
WDC06A	2372	2371.040	2371.120	2371.0830	16081.735	1.958	2.207	NaN	NaN	2.257	2.257	1.729145313	2.165	2.051	NaN
WDC06A	2379	2377.630	2377.710	2377.6700	16206.191	1.613	2.060	2.007	2.067	NaN	NaN	1.796512992	2.208	NaN	2.261
WDC06A	2385	2384.034	2384.114	2384.0740	16328.622	1.855	2.140	1.781	2.093	NaN	NaN	1.744651187	2.058	2.069	NaN
WDC06A	2393	2391.470	2391.550	2391.5050	16476.752	1.940	2.162	1.834	1.977	NaN	NaN	1.762379273	2.140	2.093	NaN
WDC06A	2400	2398.471	2398.551	2398.5110	16618.666	1.865	2.039	1.988	1.994	2.012	2.012	1.796587515	2.163	1.977	NaN
WDC06A	2407	2406.160	2406.240	2406.1980	16787.938	NaN	NaN	1.956	2.043	NaN	NaN	1.746650492	2.039	1.995	2.014
WDC06A	2414	2412.475	2412.555	2412.5150	16932.876	1.867	1.983	1.942	2.019	NaN	NaN	1.736609326	NaN	2.044	NaN
WDC06A	2421	2419.740	2419.820	2419.7770	17111.328	1.980	2.092	2.027	2.173	NaN	NaN	1.636521488	1.983	2.020	NaN
WDC06A	2428	2426.740	2426.820	2426.7760	17284.047	1.987	2.129	NaN	NaN	NaN	NaN	1.647023447	2.093	2.175	NaN
WDC06A	2435	2434.150	2434.250	2434.1950	17476.389	2.034	2.053	NaN	NaN	NaN	NaN	1.640140814	2.130	NaN	NaN
WDC06A	2442	2440.480	2440.560	2440.5210	17643.861	1.819	2.133	1.834	2.072	NaN	NaN	1.581947919	2.055	NaN	NaN
WDC06A	2452	2450.490	2450.590	2450.5350	17929.392	NaN	NaN	NaN	NaN	2.087	2.087	1.683528970	2.133	2.072	NaN
WDC06A	2455	2453.860	2453.960	2453.9060	18034.776	1.743	2.011	NaN	NaN	NaN	NaN	1.653042513	NaN	NaN	2.089
WDC06A	2459	2457.490	2457.590	2457.5380	18148.755	NaN	NaN	1.633	2.218	NaN	NaN	1.645997701	2.010	NaN	NaN
													NaN	2.216	NaN