Citation:

science.1168754

Name: (Table S1) Uranium and Thorium isotopes and U/Th ages of IODP Exp310 cores from offshore Tahiti
Published: 2009
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

The timing of sea-level change provides important constraints on the mechanisms driving Earth's climate between glacial and interglacial states. Fossil corals constrain the timing of past sea level by their suitability for dating and their growth position close to sea level. The coral-derived age for the last deglaciation is consistent with climate change forced by Northern Hemisphere summer insolation (NHI), but the timing of the penultimate deglaciation is more controversial. We found, by means of uranium/thorium dating of fossil corals, that sea level during the penultimate deglaciation had risen to ~85 meters below the present sea level by 137,000 years ago, and that it fluctuated on a millennial time scale during deglaciation. This indicates that the penultimate deglaciation occurred earlier with respect to NHI than the last deglacial, beginning when NHI was at a minimum.

Project(s):

Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)

Coverage:

Median Latitude: -17.541353 * Median Longitude: -149.480283 * South-bound Latitude: -17.766520 * West-bound Longitude: -149.598790 * North-bound Latitude: -17.488540 * East-bound Longitude: -149.403350

Date/Time Start: 2005-10-10T22:55:00 * Date/Time End: 2005-11-09T05:27:00

Minimum Elevation: -103.2 m * Maximum Elevation: -58.8 m

Event(s):

310-M0005D (TAH-03A-4C) * Latitude: -17.766520 * Longitude: -149.550790 * Date/Time Start: 2005-10-10T22:55:00 * Date/Time End: 2005-10-12T03:33:00 * Elevation: -59.6 m * Penetration: 102.17 m * Recovery: 51.35 m * Location: Tahiti, offshore Maraa * Campaign: (Tahiti Sea Level) * Basis: DP Hunter * Method/Device: Drilling/drill rig (DRILL) * Comment: Coordinate system: WGS84, Time zone: UTC -10

310-M0009B (TAH-02A-5A) * Latitude: -17.488580 * Longitude: -149.403400 * Date/Time Start: 2005-10-18T21:50:00 * Date/Time End: 2005-10-19T11:40:00 * Elevation: -100.3 m * Penetration: 27.12 m * Recovery: 17.42 m * Location: Tahiti, offshore Tiarei * Campaign: (Tahiti Sea Level) * Basis: DP Hunter * Method/Device: Drilling/drill rig (DRILL) * Comment: Coordinate system: WGS84, Time zone: UTC -10

310-M0009C (TAH-02A-5B) * Latitude: -17.488540 * Longitude: -149.403470 * Date/Time Start: 2005-10-20T02:49:00 * Date/Time End: 2005-10-20T19:25:00 * Elevation: -99.8 m * Penetration: 25.66 m * Recovery: 12.66 m * Location: Tahiti, offshore Tiarei * Campaign: (Tahiti Sea Level) * Basis: DP Hunter * Method/Device: Drilling/drill rig (DRILL) * Comment: Coordinate system: WGS84, Time zone: UTC -10

Comment:

Features indicating the coral is in growth position are: co, the orientation of the coral; cap, the positioning of an algal crust on the upper surface of the coral; gp, the orientation of partially filled geopetals within the coral; and cf, whether the coral forms part of a continuous framework.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Area/locality	Area		Thomas, Alexander L
3	Sample code/label	Sample label		Thomas, Alexander L	DSDP/ODP/IODP sample designation
4	Coral	Coral		Thomas, Alexander L
5	Description	Description		Thomas, Alexander L		Growth position indicators
6	Depth, reconstructed	Reconstr depth	m	Thomas, Alexander L	Calculated, see reference(s)	Subsidence corrected depth [mbsl]
7	Uranium-238	238U	mg/kg	Thomas, Alexander L	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
8	Uranium-238, standard deviation	238U std dev	±	Thomas, Alexander L	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
9	Hafniasphaera spp.	Hafniasphaera spp.		Thomas, Alexander L	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
10	Thorium-232, standard deviation	232Th std dev	±	Thomas, Alexander L	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
11	Thorium-230/Uranium-238 activity ratio	(230Th/238U)		Thomas, Alexander L	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
12	Thorium-230/Uranium-238 activity ratio, standard deviation	(230Th/238U) std dev	±	Thomas, Alexander L	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
13	Uranium-234/Uranium-238 activity ratio	(234U/238U)		Thomas, Alexander L	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)	Calculated as the ratio at the time when the coral grew, using the U/Th age
14	Uranium-234/Uranium-238 activity ratio, standard deviation	(234U/238U) std dev	±	Thomas, Alexander L	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)	Calculated as the ratio at the time when the coral grew, using the U/Th age
15	Thorium-232/Uranium-238 activity ratio	(232Th/238U)		Thomas, Alexander L	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
16	Thorium-232/Uranium-238 activity ratio, standard deviation	(232Th/238U) std dev	±	Thomas, Alexander L	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
17	AGE	Age	ka BP			Geocode
18	Age, standard deviation	Age std dev	±	Thomas, Alexander L	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
19	Uranium-234/Uranium-238 activity ratio	(234U/238U)		Thomas, Alexander L	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
20	Uranium-234/Uranium-238 activity ratio, standard deviation	(234U/238U) std dev	±	Thomas, Alexander L	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
21	Calcite	Cal	%	Thomas, Alexander L
22	Calcite, standard deviation	Cal std dev	±	Thomas, Alexander L

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

678 data points

Data

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

1 Event	2 Area	3 Sample label (DSDP/ODP/IODP sample designation)	4 Coral	5 Description (Growth position indicators)	6 Reconstr depth [m] (Subsidence corrected depth [m...)	7 238U [mg/kg] (Multi-collector inductively c...)	8 238U std dev [±] (Multi-collector inductively c...)	9 Hafniasphaera spp. (Multi-collector inductively c...)	10 232Th std dev [±] (Multi-collector inductively c...)	11 (230Th/238U) (Multi-collector inductively c...)	12 (230Th/238U) std dev [±] (Multi-collector inductively c...)	13 (234U/238U) (Calculated as the ratio at th...)	14 (234U/238U) std dev [±] (Calculated as the ratio at th...)	15 (232Th/238U) (Multi-collector inductively c...)	16 (232Th/238U) std dev [±] (Multi-collector inductively c...)	17 Age [ka BP]	18 Age std dev [±] (Multi-collector inductively c...)	19 (234U/238U) (Multi-collector inductively c...)	20 (234U/238U) std dev [±] (Multi-collector inductively c...)	21 Cal [%]	22 Cal std dev [±]
310-M0005D	Maraa	310-M0005D-20R-2W,0-21	massive Porites sp.	co, gp	117.52	3.1263	0.0039	0.194	0.0030	0.7866	0.0028	1.1024	0.0008	0.0000204	0.00000040	132.40	0.90	1.149	0.001	1.9	0.3
310-M0005D	Maraa	310-M0005D-20R-2W,0-21	massive Porites sp.	co, gp	117.52	2.9457	0.0004	0.2445	0.0004	0.8020	0.0009	1.1007	0.0008	0.0000272	0.00000004	137.90	0.40	1.149	0.001
310-M0005D	Maraa	310-M0005D-20R-2W,14-21	massive Porites sp.	co, gp	117.66	2.7359	0.0042	0.216	0.0040	0.7949	0.0029	1.1081	0.0008	0.0000259	0.00000050	133.60	1.00	1.158	0.001	0.3	0.2
310-M0005D	Maraa	310-M0005D-20R-2W,14-21	massive Porites sp.	co, gp	117.66	2.5690	0.0008	0.0849	0.0001	0.7902	0.0009	1.1016	0.0008	0.0000108	0.00000002	133.70	0.40	1.148	0.001
310-M0020A	Faaa	310-M0020A-21R-2W,13-20	robust branching Pocillopora sp.		113.16	2.9434	0.0038	17.6	0.3000	0.3813	0.0014	1.1396	0.0008	0.0019591	0.00003470	44.10	0.20	1.158	0.001	0.1	0.2
310-M0020A	Faaa	310-M0020A-25R-3W,11-13	massive Porites sp.		124.28	3.0016	0.0037	2.45	0.0400	0.5037	0.0018	1.1175	0.0008	0.0002668	0.00000470	64.60	0.30	1.141	0.001	0.6	0.2
310-M0019A	Faaa	310-M0019A-27R-1W,62-83	massive Porites sp.	co, gp, cap, cf	115.24	2.4738	0.0003	0.232	0.0040	0.7903	0.0027	1.1038	0.0010	0.0000311	0.00000050	133.20	0.90	1.151	0.001
310-M0019A	Faaa	310-M0019A-27R-1W,62-83	massive Porites sp.	co, gp, cap, cf	115.24	2.4799	0.0008	0.205	0.0003	0.7896	0.0009	1.1030	0.0008	0.0000270	0.00000005	133.10	0.40	1.150	0.001
310-M0019A	Faaa	310-M0019A-27R-1W,62-83	massive Porites sp.	co, gp, cap, cf	115.24	2.4889	0.0003	0.207	0.0003	0.7919	0.0009	1.1025	0.0008	0.0000272	0.00000004	134.00	0.40	1.150	0.001
310-M0019A	Faaa	310-M0019A-29R-1W,0-4	massive Favia sp.	co	117.61	2.6539	0.0004	2.302	0.0370	0.7996	0.0027	1.1024	0.0010	0.0002801	0.00000440	136.60	0.90	1.151	0.001
310-M0019A	Faaa	310-M0019A-29R-1W,0-4	massive Favia sp.	co	117.61	2.6539	0.0004	2.25	0.0040	0.8030	0.0009	1.1021	0.0008	0.0002776	0.00000050	137.80	0.40	1.151	0.001
310-M0019A	Faaa	310-M0019A-29R-1W,16-24	tabular Acropora sp.	co, cap	117.77	3.1345	0.0005	0.17	0.0030	0.8063	0.0027	1.1163	0.0010	0.0000191	0.00000030	135.00	0.90	1.170	0.001
310-M0019A	Faaa	310-M0019A-29R-1W,16-24	tabular Acropora sp.	co, cap	117.77	3.1198	0.0004	0.154	0.0003	0.8092	0.0009	1.1164	0.0008	0.0000162	0.00000003	135.90	0.40	1.171	0.001
310-M0019A	Faaa	310-M0019A-32R-1W,0-4	robust branching Pocillopora sp.	co?, cf?	119.61	2.5717	0.0003	0.603	0.0100	0.7979	0.0027	1.1065	0.0011	0.0000788	0.00000130	134.90	0.90	1.156	0.002
310-M0019A	Faaa	310-M0019A-32R-1W,0-4	robust branching Pocillopora sp.	co?, cf?	119.61	2.5899	0.0005	0.258	0.0004	0.8034	0.0009	1.1055	0.0008	0.0000326	0.00000010	137.00	0.40	1.155	0.001
310-M0009B	Tierei	310-M0009B-16R-2W,13-17	massive Porites sp.	co	124.43	3.2753	0.0002	0.387	0.0030	0.2694	0.0008	1.1277	0.0008	0.0000386	0.00000030	29.59	0.10	1.139	0.001	0.2	0.2
310-M0009B	Tierei	310-M0009B-16R-2W,13-17	massive Porites sp.	co	124.43	3.1816	0.0005	0.362	0.0080	0.2694	0.0006	1.1269	0.0008	0.0000373	0.00000080	29.61	0.08	1.138	0.001
310-M0009B	Tierei	310-M0009B-17R-1W,5-10	massive Porites sp.	co, cap	124.48	3.4967	0.0005	0.355	0.0010	0.2712	0.0005	1.1278	0.0005	0.0000333	0.00000010	29.81	0.07	1.139	0.001	0.5	0.2
310-M0009B	Tierei	310-M0009B-17R-1W,5-10	massive Porites sp.	co, cap	124.48	3.3945	0.0011	0.304	0.0070	0.2713	0.0006	1.1274	0.0008	0.0000293	0.00000060	29.84	0.08	1.139	0.001
310-M0009B	Tierei	310-M0009B-17R-1W,70-80	branching Acropora sp.	co, cap	125.13	3.5654	0.0003	0.678	0.0050	0.2693	0.0008	1.1296	0.0008	0.0000622	0.00000050	29.52	0.10	1.141	0.001	0.1	0.2
310-M0009B	Tierei	310-M0009B-17R-1W,70-80	branching Acropora sp.	co, cap	125.13	3.5320	0.0005	0.717	0.0030	0.2709	0.0005	1.1315	0.0005	0.0000665	0.00000020	29.66	0.07	1.143	0.001
310-M0009C	Tierei	310-M0009C-18R-1W,80-87	encrusting Montipora sp.	co, gp, cap, cf	121.45	3.9956	0.0006	4.04	0.0100	0.2853	0.0006	1.1262	0.0005	0.0003311	0.00000120	31.66	0.08	1.138	0.001	0.6	0.2
310-M0009C	Tierei	310-M0009C-18R-1W,80-87	encrusting Montipora sp.	co, gp, cap, cf	121.45	3.8925	0.0014	3.79	0.0800	0.2871	0.0006	1.1263	0.0008	0.0003184	0.00000690	31.89	0.09	1.138	0.001
310-M0009D	Tierei	310-M0009D-18R-1W,19-28	foliaceous Pachyseris	co, gp, cap, cf	132.09	2.6619	0.0007	0.914	0.0070	0.2742	0.0008	1.1283	0.0008	0.0001124	0.00000080	30.18	0.10	1.140	0.001	0.0	0.2
310-M0009D	Tierei	310-M0009D-18R-1W,19-28	foliaceous Pachyseris	co, gp, cap, cf	132.09	5.1113	0.0006	2.408	0.0180	0.2713	0.0008	1.1281	0.0008	0.0001542	0.00000120	29.82	0.10	1.139	0.001	0.2	0.2
310-M0009D	Tierei	310-M0009D-18R-1W,19-28	foliaceous Pachyseris	co, gp, cap, cf	132.09	5.1951	0.0070	2.829	0.0100	0.2737	0.0007	1.1276	0.0005	0.0001783	0.00000070	30.14	0.09	1.139	0.001
310-M0009D	Tierei	310-M0009D-20R-2W,0-5	branching Acropora sp.		137.80	3.3250	0.0006	1.474	0.0050	0.2799	0.0006	1.1321	0.0005	0.0001452	0.00000050	30.78	0.07	1.144	0.001	0.5	0.2
310-M0009D	Tierei	310-M0009D-20R-2W,0-5	branching Acropora sp.		137.80	3.2898	0.0016	1.395	0.0300	0.2818	0.0006	1.1325	0.0008	0.0001390	0.00000300	31.00	0.08	1.145	0.001
310-M0009D	Tierei	310-M0009D-25R-1W,64-70	massive Porites sp.	co, gp, cap, cf	145.82	2.8052	0.0008	0.228	0.0020	0.8263	0.0024	1.0952	0.0008	0.0000266	0.00000020	148.10	0.90	1.145	0.001	0.1	0.2
310-M0009D	Tierei	310-M0009D-25R-1W,95-102	tabular Acropora sp.	co, gp, cap, cf	146.13	3.5084	0.0010	0.605	0.0050	0.8315	0.0024	1.1090	0.0008	0.0000565	0.00000040	145.60	0.90	1.165	0.001	0.1	0.2
310-M0009D	Tierei	310-M0009D-25R-2W,41-49	massive Porites sp.	co, gp, cap	146.95	2.6787	0.0004	0.879	0.0030	0.8364	0.0017	1.0930	0.0005	0.0001075	0.00000040	152.70	0.70	1.143	0.001	0.1	0.2
310-M0009D	Tierei	310-M0009D-25R-2W,41-49	massive Porites sp.	co, gp, cap	146.95	2.6901	0.0003	0.798	0.0010	0.8376	0.0010	1.0937	0.0008	0.0000971	0.00000020	152.90	0.50	1.144	0.001
310-M0009D	Tierei	310-M0009D-25R-2W,52-55	massive Porites sp.	co, gp, cap	147.06	2.7078	0.0004	0.563	0.0020	0.8388	0.0017	1.0940	0.0005	0.0000681	0.00000030	153.20	0.70	1.145	0.001	0.1	0.2
310-M0009D	Tierei	310-M0009D-25R-2W,52-55	massive Porites sp.	co, gp, cap	147.06	2.7063	0.0006	0.564	0.0010	0.8388	0.0010	1.0936	0.0008	0.0000682	0.00000010	153.40	0.50	1.144	0.001
310-M0009E	Tierei	310-M0009E-12R-2W,86-107	massive Porites sp.	co, gp, cap, cf	113.56	3.2507	0.0004	1.744	0.0130	0.2952	0.0008	1.1263	0.0008	0.0001756	0.00000130	32.94	0.11	1.139	0.001	0.4	0.2
310-M0009E	Tierei	310-M0009E-12R-2W,86-107	massive Porites sp.	co, gp, cap, cf	113.56	3.1999	0.0004	1.824	0.0070	0.2955	0.0005	1.1261	0.0005	0.0001866	0.00000070	32.98	0.08	1.138	0.001	0.1	0.2