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Lippold, Jörg; Luo, Yiming; Francois, Roger; Allen, Susan E; Gherardi, Jeanne-Marie; Pichat, Sylvain; Hickey, Ben M; Schulz, Hartmut (2012): Atlantic 231Pa/230Th and biogenic opal compilation of the Holocene and the LGM [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.788550, Supplement to: Lippold, J et al. (2012): Strength and geometry of the glacial Atlantic Meridional Overturning Circulation. Nature Geoscience, 5, 813-816, https://doi.org/10.1038/ngeo1608

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Abstract:
The strength and geometry of the Atlantic meridional overturning circulation is tightly coupled to climate on glacial-interglacial and millennial timescales, but has proved difficult to reconstruct, particularly for the Last Glacial Maximum. Today, the return flow from the northern North Atlantic to lower latitudes associated with the Atlantic meridional overturning circulation reaches down to approximately 4,000 m. In contrast, during the Last Glacial Maximum this return flow is thought to have occurred primarily at shallower depths. Measurements of sedimentary 231Pa/230Th have been used to reconstruct the strength of circulation in the North Atlantic Ocean, but the effects of biogenic silica on 231Pa/230Th-based estimates remain controversial. Here we use measurements of 231Pa/230Th ratios and biogenic silica in Holocene-aged Atlantic sediments and simulations with a two-dimensional scavenging model to demonstrate that the geometry and strength of the Atlantic meridional overturning circulation are the primary controls of 231Pa/230Th ratios in modern Atlantic sediments. For the glacial maximum, a simulation of Atlantic overturning with a shallow, but vigorous circulation and bulk water transport at around 2,000 m depth best matched observed glacial Atlantic 231Pa/230Th values. We estimate that the transport of intermediate water during the Last Glacial Maximum was at least as strong as deep water transport today.
Related to:
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Bradtmiller, Louisa I; Anderson, Robert F; Fleisher, Martin Q; Burckle, Lloyd H (2007): Opal burial in the equatorial Atlantic Ocean over the last 30 ka: Implications for glacial-interglacial changes in the ocean silicon cycle. Paleoceanography, 22(4), PA4216, https://doi.org/10.1029/2007PA001443
Channell, James E T; Hodell, David A; Lehman, Benoît (1997): Relative geomagnetic paleointensity and d18O at ODP Site 983 (Gardar Drift, North Atlantic) since 350 ka. Earth and Planetary Science Letters, 153(1-2), 103-118, https://doi.org/10.1016/S0012-821X(97)00164-7
Chapman, Mark R; Shackleton, Nicholas J; Duplessy, Jean-Claude (2000): Sea surface temperature variability during the last glacial-interglacial cycle: assessing the magnitude and pattern of climate change in the North Atlantic. Palaeogeography, Palaeoclimatology, Palaeoecology, 157(1-2), 1-25, https://doi.org/10.1016/S0031-0182(99)00168-6
Christl, Marcus; Lippold, Jörg; Hofmann, Alexander; Wacker, Lukas; Lahaye, Yann; Synal, Hans-Arno (2010): 231Pa/230Th: A proxy for upwelling off the coast of West Africa. Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, 268(7-8), 1159-1162, https://doi.org/10.1016/j.nimb.2009.10.123
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Gherardi, Jeanne-Marie; Labeyrie, Laurent D; Nave, Silvia Osorio; Francois, Roger; McManus, Jerry F; Cortijo, Elsa (2009): Glacial-interglacial circulation changes inferred from 231Pa/230Th sedimentary record in the North Atlantic region. Paleoceanography, 24(2), PA2204, https://doi.org/10.1029/2008PA001696
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Vogelsang, Elke; Sarnthein, Michael; Pflaumann, Uwe (2001): d18O Stratigraphy, chronology, and sea surface temperatures of Atlantic sediment records (GLAMAP-2000 Kiel). Berichte-Reports, Institut für Geowissenschaften, Universität Kiel, 13, 13+244 pp., https://doi.org/10.2312/reports-ifg.2001.13
Project(s):
Coverage:
Median Latitude: 10.149037 * Median Longitude: -31.158027 * South-bound Latitude: -53.300000 * West-bound Longitude: -76.330020 * North-bound Latitude: 60.582167 * East-bound Longitude: 25.500000
Date/Time Start: 1966-05-17T00:00:00 * Date/Time End: 2005-06-15T13:51:00
Minimum DEPTH, sediment/rock: 0.0000 m * Maximum DEPTH, sediment/rock: 8.7050 m
Event(s):
38GGC  * Latitude: 4.900000 * Longitude: -20.500000 * Elevation: -2937.0 m * Location: South Atlantic * Method/Device: Piston corer (PC)
55GGC  * Latitude: 4.900000 * Longitude: -42.900000 * Elevation: -4556.0 m * Location: South Atlantic * Method/Device: Piston corer (PC)
58GGC  * Latitude: 4.800000 * Longitude: -43.000000 * Elevation: -4341.0 m * Location: South Atlantic * Method/Device: Piston corer (PC)
Comment:
231Pa/230Th and biogenic opal compilation of new and published data from the Holocene (in the range of 0 - 7 ka) and the Last Glacial Maximum (LGM) in the range of 19 - 24 ka. References for age models and published data are indicated in the last columns according to the list of references. Only 231Pa/230Th measurements by ICP-MS (or AMS) have been considered.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEvent
Latitude of eventLatitude
Longitude of eventLongitude
AGEAgeka BPGeocode
DEPTH, sediment/rockDepth sedmGeocode
Depth, top/minDepth topmLippold, Jörg
Depth, bottom/maxDepth botmLippold, Jörg
Sample code/labelSample labelLippold, JörgDSDP/ODP/IODP sample designation
Protactinium-231/Thorium-230 ratio231Pa/230ThLippold, Jörg
10 Protactinium-231/Thorium-230, error, relative231Pa/230Th e rel%Lippold, Jörg
11 Opal, biogenic silicabSiO2%Lippold, Jörgwt. %
12 Opal, biogenic silica, error, relativebSiO2 e%Lippold, Jörgwt. %
13 Accumulation rate, opalAcc rate opalg/cm2/kaLippold, Jörg
14 Accumulation rate, opal, error, relativeAcc rate opal e rel%Lippold, Jörg
15 Reference/sourceReferenceLippold, JörgPa/Th values
16 Reference/sourceReferenceLippold, Jörgage model
Size:
1444 data points

Data

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


Event

Latitude

Longitude

Age [ka BP]

Depth sed [m]

Depth top [m]

Depth bot [m]

Sample label

231Pa/230Th
10 
231Pa/230Th e rel [%]
11 
bSiO2 [%]
(wt. %)
12 
bSiO2 e [%]
(wt. %)
13 
Acc rate opal [g/cm2/ka]
14 
Acc rate opal e rel [%]
15 
Reference
(Pa/Th values)
16 
Reference
(age model)
38GGC 4.9000-20.50002.300.03000.05302.42.610.10.040010.4S. Pichat et al. in prep.Francois et al. 1990
38GGC4.9000-20.50004.300.05500.05202.32.610.10.035010.3S. Pichat et al. in prep.Francois et al. 1990
38GGC4.9000-20.500019.200.27500.04705.76.010.10.076011.6S. Pichat et al. in prep.Francois et al. 1990
38GGC4.9000-20.500022.200.33500.08807.86.110.10.130012.8S. Pichat et al. in prep.Francois et al. 1990
38GGC4.9000-20.500023.800.36500.07005.65.910.10.075011.6S. Pichat et al. in prep.Francois et al. 1990
55GGC 4.9000-42.90002.600.06500.04303.53.310.10.044010.7S. Pichat et al. in prep.Francois et al. 1990
55GGC4.9000-42.90005.000.12500.04605.33.310.10.059011.4S. Pichat et al. in prep.Francois et al. 1990
55GGC4.9000-42.900019.500.58250.06905.54.010.10.079011.5S. Pichat et al. in prep.Francois et al. 1990
55GGC4.9000-42.900021.700.71000.07408.25.010.10.170013.0S. Pichat et al. in prep.Francois et al. 1990
55GGC4.9000-42.900022.900.78500.05805.44.310.10.085011.4S. Pichat et al. in prep.Francois et al. 1990
58GGC 4.8000-43.00001.800.03500.04503.92.710.10.046010.8S. Pichat et al. in prep.Francois et al. 1990
58GGC4.8000-43.00002.900.05500.05403.83.010.10.053010.8S. Pichat et al. in prep.Francois et al. 1990
58GGC4.8000-43.00005.000.09500.03604.22.510.10.057011.0S. Pichat et al. in prep.Francois et al. 1990
58GGC4.8000-43.000019.100.56500.06105.63.810.10.076011.5S. Pichat et al. in prep.Francois et al. 1990
58GGC4.8000-43.000020.900.68500.06805.23.210.10.066011.3S. Pichat et al. in prep.Francois et al. 1990
58GGC4.8000-43.000022.200.78500.08605.33.310.10.120011.4S. Pichat et al. in prep.Francois et al. 1990
71GGC 4.4000-43.70001.700.02500.05805.32.510.10.045011.4S. Pichat et al. in prep.Francois et al. 1990
71GGC4.4000-43.70002.500.04500.05903.62.110.10.037010.7S. Pichat et al. in prep.Francois et al. 1990
71GGC4.4000-43.700022.100.64500.05305.53.910.10.089011.5S. Pichat et al. in prep.Francois et al. 1990
82GGC 4.3000-43.50001.400.02500.05303.62.110.10.033010.7S. Pichat et al. in prep.Francois et al. 1990
82GGC4.3000-43.50004.700.08500.04902.62.710.10.034010.4S. Pichat et al. in prep.Francois et al. 1990
82GGC4.3000-43.50006.900.12500.04503.82.310.10.032010.8S. Pichat et al. in prep.Francois et al. 1990
82GGC4.3000-43.500021.200.77500.05105.23.110.10.068011.4S. Pichat et al. in prep.Francois et al. 1990
82GGC4.3000-43.500023.800.93500.05605.13.510.10.081011.3S. Pichat et al. in prep.Francois et al. 1990
C1_PC-ENG111 -22.5000-40.100019.001.77000.10208.32.110.10.031010.3this studyM. Ruckelshausen unpubl. data
C1_PC-ENG111-22.5000-40.10007.000.25000.09106.81.210.10.016010.2this studyM. Ruckelshausen unpubl. data
C2_PC-21210009 -24.3000-43.20008.000.07000.09507.7this studyM. Ruckelshausen unpubl. data
DAPC2 59.0000-9.60003.700.09405.0Hall et al. 2006
DAPC259.0000-9.60005.000.09005.0Hall et al. 2006
DAPC259.0000-9.60006.100.09205.0Hall et al. 2006
DAPC259.0000-9.600019.000.08005.0Hall et al. 2006
DAPC259.0000-9.600019.100.06605.0Hall et al. 2006
DAPC259.0000-9.600019.200.06205.0Hall et al. 2006
DAPC259.0000-9.600019.200.05805.0Hall et al. 2006
DAPC259.0000-9.600019.300.06305.0Hall et al. 2006
DAPC259.0000-9.600019.400.06805.0Hall et al. 2006
DAPC259.0000-9.600019.500.05505.0Hall et al. 2006
DAPC259.0000-9.600019.600.05505.0Hall et al. 2006
DAPC259.0000-9.600019.600.05205.0Hall et al. 2006
DAPC259.0000-9.600019.700.06005.0Hall et al. 2006
GeoB1515-1 4.2383-43.66670.600.01000.05902.40.710.30.01105.0Lippold et al. 2011Ruehlemann et al. 1996
GeoB1515-14.2383-43.66674.400.08000.04504.00.910.30.011010.9Lippold et al. 2011Ruehlemann et al. 1996
GeoB1515-14.2383-43.666719.000.61000.07705.01.810.30.037011.2this studyRuehlemann et al. 1996
GeoB1515-14.2383-43.666720.900.72000.07105.11.510.30.031011.1this studyRuehlemann et al. 1996
GeoB1515-14.2383-43.666724.000.86000.07604.42.310.30.044011.0this studyRuehlemann et al. 1996
GeoB1523-1 3.8317-41.62170.500.01000.06000.91.210.30.030010.3Lippold et al. 2011Vidal et al. 1999
GeoB1523-13.8317-41.62173.300.08000.06404.10.610.30.008010.9Lippold et al. 2011Vidal et al. 1999
GeoB1523-13.8317-41.62176.500.16000.04604.21.310.30.020010.9Lippold et al. 2011Vidal et al. 1999
GeoB1523-13.8317-41.621719.800.53000.07304.2this studyVidal et al. 1999
GeoB1523-13.8317-41.621723.500.64000.07004.12.310.30.037010.9this studyVidal et al. 1999
GeoB1711-4 -23.315012.37670.900.05000.13109.2Lippold et al. 2012
GeoB1711-4-23.315012.37673.400.20000.12302.02.450.00.032050.0Lippold et al. 2012
GeoB1711-4-23.315012.37676.100.35000.119010.1Lippold et al. 2012
GeoB1711-4-23.315012.376719.701.80000.10403.53.350.00.036050.0Lippold et al. 2012
GeoB1711-4-23.315012.376720.201.91000.09903.6Lippold et al. 2012
GeoB1711-4-23.315012.376720.301.96000.11206.5Lippold et al. 2012
GeoB1711-4-23.315012.376720.502.01000.10103.5Lippold et al. 2012
GeoB1711-4-23.315012.376720.802.10500.09703.50.350.00.003350.0Lippold et al. 2012
GeoB1711-4-23.315012.376721.402.27000.09403.5Lippold et al. 2012
GeoB1711-4-23.315012.376721.802.40000.09403.81.250.00.010050.0Lippold et al. 2012
GeoB1711-4-23.315012.376722.802.50000.09203.9Lippold et al. 2012
GeoB1711-4-23.315012.376723.402.55500.08703.7Lippold et al. 2012
GeoB2104-3 -27.2850-46.373321.501.42001.271.5700.07605.33.815.0B. Hickey in prep.
GeoB2104-3-27.2850-46.37335.000.29000.010.5700.07905.23.615.0B. Hickey in prep.
GeoB2107-3 -27.1767-46.451720.901.38501.261.5100.05907.92.415.0B. Hickey in prep.Heil 2006
GeoB2107-3-27.1767-46.45175.700.31000.010.6100.07904.72.815.0B. Hickey in prep.Heil 2006
GeoB2109-1 -27.9117-45.881721.200.66500.640.6900.06406.13.411.0B. Hickey in prep.
GeoB2109-1-27.9117-45.88174.500.08000.010.1500.05306.42.811.0B. Hickey in prep.
GeoB2112-3 -29.1300-43.376720.200.16000.140.1800.06505.63.14.0B. Hickey in prep.
GeoB2112-3-29.1300-43.37677.100.04000.010.0700.05004.43.44.0B. Hickey in prep.
GeoB3722-2 -25.250012.02170.390.01000.06405.0Christl et al. 2009Lippold et al. 2012
GeoB3722-2-25.250012.02173.950.10000.06503.02.350.00.035050.0Christl et al. 2009Lippold et al. 2012
GeoB3722-2-25.250012.021719.600.66500.11204.5Christl et al. 2009Lippold et al. 2012
GeoB3722-2-25.250012.021720.000.68000.11103.64.230.00.045034.3Christl et al. 2009Lippold et al. 2012
GeoB3722-2-25.250012.021720.800.71000.10301.9Christl et al. 2009Lippold et al. 2012
GeoB3722-2-25.250012.021721.300.73000.10804.6Christl et al. 2009Lippold et al. 2012
GeoB3722-2-25.250012.021722.700.80000.11204.54.430.00.043033.4Christl et al. 2009Lippold et al. 2012
GeoB3935-2 12.6133-59.38672.100.03000.08705.24.010.10.04007.1Lippold et al. 2011Schluenz et al. 2000
GeoB3936-1 12.7183-59.00172.500.04000.08004.55.310.10.05106.5Lippold et al. 2011Frederichs et al. 1996
GeoB3937-2 12.5567-58.76502.500.03000.08204.54.010.10.03006.1Lippold et al. 2011Frederichs et al. 1996
GeoB9508-5 15.4983-17.94802.000.19000.12007.01.610.30.036011.7Lippold et al. 2012
GeoB9508-515.4983-17.94804.300.44000.12002.81.110.30.016011.2Lippold et al. 2012
GeoB9508-515.4983-17.94806.000.62000.10004.00.510.30.007611.0Lippold et al. 2012
GeoB9508-515.4983-17.948019.003.01000.06006.01.410.30.027011.3Lippold et al. 2012
GeoB9508-515.4983-17.948019.903.13500.06104.21.710.30.027011.0Lippold et al. 2012
GeoB9508-515.4983-17.948022.003.35000.06304.21.710.30.035011.6Lippold et al. 2012
GS06-144-02 57.5000-48.60000.100.01000.11002.99.810.10.180010.4this studyH. Kleiven unpubl. data
KNR140-12JPC 29.0800-72.90002.500.20000.05902.81.110.30.019010.4this studyGutjahr et al. 2008
KNR140-12JPC29.0800-72.90003.800.30000.06003.91.110.30.019010.3this studyGutjahr et al. 2008
KNR140-12JPC29.0800-72.900019.402.51000.07203.71.910.30.066010.4this studyGutjahr et al. 2008
KNR140-12JPC29.0800-72.900019.902.63000.07304.91.710.30.060010.4this studyGutjahr et al. 2008
M35003-4 12.0900-61.24330.200.06000.09503.62.110.30.020010.7Lippold et al. 2011Vogelsang and Sarnthein 2004
M35003-412.0900-61.24333.900.69000.09702.02.310.30.052010.4Lippold et al. 2011Vogelsang and Sarnthein 2004
M35003-412.0900-61.243320.303.34000.07803.11.610.30.035010.4this studyVogelsang and Sarnthein 2004
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