Triple-Isotope Composition of Atmospheric Oxygen from Ice Cores
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              World Data Center for Paleoclimatology, Boulder
                                and 
                   NOAA Paleoclimatology Program
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NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA!!!!!


NAME OF DATA SET: Triple-Isotope Composition of Atmospheric Oxygen from Ice Cores
CONTRIBUTORS: Thomas Blunier, University of Bern, and 
Michael Bender, Princeton University.

IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2002-057
SUGGESTED DATA CITATION: Blunier, T., et al., 2002,
Triple-Isotope Composition of Atmospheric Oxygen from Ice Cores.  
IGBP PAGES/World Data Center for Paleoclimatology 
Data Contribution Series #2002-057.  
NOAA/NGDC Paleoclimatology Program, Boulder CO, USA.

ORIGINAL REFERENCE: 
Blunier, T., B. Barnett, M.L. Bender, and M.B. Hendricks, 2002,
Biological oxygen productivity during the last 60,000 years 
from triple oxygen isotope measurements, 
Global Biogeochem. Cycles, 16, 10.1029/2001GB001460. 

ADDITIONAL REFERENCE:
Meese, D.A., A.J. Gow, P. Grootes, P.A. Mayewski, M. Ram, 
M. Stuiver, K.C. Taylor, E.D. Waddington, and G.A. Zielinski, 1994,
The accumulation record from the GISP2 core as an indicator of 
climate change throughout the Holocene, 
Science, 266, 1680-1682, 1994.


LAST UPDATE: 8/2002 (Original Receipt by WDCA Paleo)
GEOGRAPHIC REGION: Global
PERIOD OF RECORD: 0 -60 KYrBP


DESCRIPTION:
Triple-Isotope Composition of Atmospheric Oxygen from Ice Cores

The data archived here were used for Figure 1 of Blunier et al., 2002. 
This paper should be cited when referring to the data.

D17O of atmospheric oxygen from the GISP2 and the Siple Dome ice cores in per meg 
(d17O- 0.521*d18O)*1000. 
Note: All data is on the Meese et al., 1994 GISP2 time scale. 0 BP is 1950. 
The time scale for Siple Dome has been obtained synchronizing d18O of O2 
to the GISP2 time scale.

The data is in four columns: 
Column 1:	Depth (meters below the surface) 
Column 2:	Age (calendar years before 1950) 
Column 3:	D17O mean values (per meg)
Column 4:	D17O Standard error (per meg) 


DATA:


GISP2			
Depth	Gasage	D17O	Standard error
[m]	[yr BP]	[per meg]	[per meg]
194.10	478	-0.2	7.2
374.55	1284	-9.6	12.7
491.00	1862	12.6	15.8
616.03	2520	-3.3	7.4
829.83	3760	-4.2	6.9
943.07	4480	0.7	6.9
1049.00	5205	2.0	14.4
1315.55	7341	1.0	6.5
1382.98	7937	4.1	8.4
1433.75	8416	3.1	3.9
1508.35	9163	3.2	8.3
1574.60	9903	1.5	6.9
1658.10	10985	-1.2	7.4
1715.00	12202	-0.3	9.9
1728.20	12730	27.6	7.6
1793.88	14274	19.7	3.8
1837.43	15432	9.3	7.1
1885.05	17416	34.3	7.6
1902.00	18284	41.0	10.4
1928.10	19527	33.0	10.5
1968.05	21519	22.6	18.1
2008.10	23730	30.8	10.1
2095.00	29294	31.1	19.1
2175.00	34674	28.3	23.5
2208.00	36487	22.4	7.1
2249.90	39014	18.9	10.4
2265.90	40226	39.2	7.6
2277.90	40850	41.0	7.9
2333.90	43899	28.7	7.4
2359.23	45110	32.7	7.4
2377.90	46263	25.1	7.0
2425.90	49443	30.0	9.4
2431.90	49979	15.5	7.5
2437.90	50490	14.7	7.0
2451.90	51429	28.7	8.9
2459.23	52089	38.9	5.5
2465.95	52940	31.3	10.6
2470.00	53511	47.0	8.0
2492.80	56156	17.4	8.2
2505.90	57600	23.4	9.9
2519.90	59232	41.6	10.6
2537.87	61679	30.3	20.1
2551.90	63374	37.8	7.7
			
			
			
SIPLE Dome			
Depth	Gasage	D17O	Standard error
[m]	[yr BP]	[per meg]	[per meg]
179.46	2130	-1.6	8.1
239.50	3196	-4.4	8.9
360.35	5340	-2.0	9.5
448.90	6912	10.6	17.8
540.92	8545	2.4	13.4
587.26	9367	10.0	4.3
614.86	10445	15.3	17.8
629.35	11663	6.7	5.5
637.50	12348	20.1	7.7
659.71	14215	28.0	9.0
674.97	15497	24.1	9.6
690.19	16776	47.8	18.2
696.75	17327	53.9	4.9
724.20	19635	36.9	4.9
737.55	20756	39.3	8.6