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Data Publisher for Earth & Environmental Science

Sato, Masahiko; Makio, Masato; Hayashi, T; Ohno, Masao (2015): Late Pliocene and early Pleistocene rock-magnetic record of IODP Site 306-U1314 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.848329, Supplement to: Sato, M et al. (2015): Abrupt intensification of North Atlantic Deep Water formation at the Nordic Seas during the late Pliocene climate transition. Geophysical Research Letters, 42(12), 4949-4955, https://doi.org/10.1002/2015GL063307

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Abstract:
Knowledge of the evolution of North Atlantic Deep Water (NADW) is key to understanding the past evolution of the climatic system. We developed a new rock-magnetic method to determine the constituent magnetic minerals of sediments and report on the evolution of NADW during 2.2-2.9 Ma. We measured isothermal remanence acquisition curves of North Atlantic deep-sea sediments drilled at the Gardar Drift and decomposed the first derivatives of these curves into high-coercivity and low-coercivity components. Residuals of the decomposition were sufficiently small throughout the study interval, confirming that the Gardar Drift sediments represent a mixing of the two end-members. Fractional changes of the high-coercivity component represent variation of the Iceland-Scotland Overflow Water, a branch of NADW formed at the Nordic Seas. The high-coercivity component increased significantly during an interglacial period just after ~2.68 Ma, which suggests that NADW formation in the Nordic Seas abruptly intensified at this time.
Coverage:
Latitude: 56.364000 * Longitude: -27.888000
Date/Time Start: 2005-04-07T00:00:00 * Date/Time End: 2005-04-10T00:00:00
Minimum DEPTH, sediment/rock: 199.31 m * Maximum DEPTH, sediment/rock: 299.19 m
Event(s):
306-U1314 * Latitude: 56.364000 * Longitude: -27.888000 * Date/Time Start: 2005-04-07T00:00:00 * Date/Time End: 2005-04-10T00:00:00 * Elevation: -2800.0 m * Recovery: 765.63 m * Location: North Atlantic * Campaign: Exp306 (North Atlantic Climate 2) * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE)
Size:
1764 data points

Data

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


Depth sed [m]

Age [ka BP]

HCC [%]

LCC [%]

Residual [%]

IRM int [A*m2/kg]

IRM mode [mT]

IRM median [mT]

IRM mean [mT]
199.312218.591.010.53.30.10165.6253.83138.29
199.812223.578.023.02.60.12553.8253.82159.75
200.312228.5101.50.03.90.07365.6153.82150.34
200.812233.575.524.51.80.05353.8253.82158.67
201.312237.667.534.53.70.06553.8253.82149.55
201.812240.845.557.06.10.05353.8343.99131.34
202.312244.255.047.55.60.06753.8253.82140.41
202.812248.547.556.58.90.05853.8353.83137.66
203.312253.595.56.02.70.06065.6253.83142.79
203.812258.591.010.02.70.06365.6253.82139.62
204.312262.993.57.01.60.06465.6153.82141.03
204.962268.289.010.52.40.07965.6153.82135.07
205.462272.297.04.02.30.08565.6353.83143.44
205.962277.050.052.04.60.07253.8353.83134.28
206.462282.564.039.57.30.07253.8353.83151.20
206.962288.571.032.57.90.07953.8253.82160.01
207.462294.584.018.04.00.08253.8253.82168.74
207.962300.679.021.52.60.06353.8253.82164.20
208.462306.497.05.04.70.08565.6253.83144.98
208.962311.876.525.04.10.11553.8353.83159.59
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209.962322.590.511.54.80.09065.6253.82138.34
210.462327.833.070.06.30.03153.8343.99121.48
210.962333.277.525.57.30.08053.8353.83164.96
211.462338.681.520.53.90.04353.8353.83167.37
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219.512410.194.55.52.30.08565.6365.63140.93
220.012414.189.510.02.80.08965.6253.83134.94
220.512418.189.010.02.40.06065.6353.83135.74
221.012421.983.519.56.40.05853.8243.99168.43
221.512425.171.031.55.40.05853.8353.83156.00
222.012428.470.532.56.00.09853.8253.82155.94
222.512432.945.057.55.40.06453.8243.99130.56
223.012438.247.553.53.40.09153.8344.00130.44
223.512443.553.548.55.00.09053.8353.83139.21
224.012449.366.536.56.50.10153.8353.83152.31
224.512455.974.527.54.70.09853.8353.83158.39
225.012462.681.019.02.70.07153.8253.82161.06
225.212465.286.012.53.20.06353.8253.82166.01
225.712471.997.50.05.90.06165.6153.82152.81
226.212478.567.532.53.90.05553.8353.83147.24
226.712484.017.582.04.50.05044.0044.00143.07
227.212488.958.543.04.50.10753.8253.82139.71
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228.212495.468.035.07.40.08153.8353.83154.12
228.712498.683.018.53.70.06853.8353.83166.53
229.212501.877.521.53.90.05053.8243.99155.88
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231.212514.638.563.04.50.05553.8143.98124.06
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242.212595.050.550.54.30.06653.8453.84135.65
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243.712604.154.049.07.00.07753.8453.84142.02
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244.712611.670.034.510.30.08353.8353.83159.90
245.012614.081.020.54.60.06953.8253.82165.95
245.512617.385.016.04.90.06553.8253.82168.51
246.012620.390.59.57.50.06165.6143.99139.25
246.512622.977.523.04.30.07453.8453.84158.25
247.012625.380.019.04.70.06353.8453.84158.46
247.512627.781.019.53.80.05853.8453.84162.89
248.012630.179.021.09.60.05653.8344.00165.85
248.512632.561.039.53.90.06453.8253.82142.55
249.012635.072.030.05.60.07253.8453.84159.54
249.462637.158.045.07.10.06453.8453.84145.83
249.962639.534.566.55.30.05953.8444.00124.34
250.462642.060.042.56.70.07753.8353.83147.25
250.962644.455.046.55.20.08153.8353.83140.38
251.462646.849.551.54.30.10153.8253.82134.43
251.962649.251.050.54.90.10453.8343.99134.65
252.462652.050.550.53.90.08353.8343.99135.01
252.962655.265.034.03.20.05353.8453.84146.84
253.312657.479.021.011.10.03353.8453.84162.79
253.812660.690.09.53.10.03465.6353.84139.06
254.312664.685.015.02.90.04453.8353.83167.34
254.812668.796.04.05.80.05465.6265.62146.21
255.312672.791.58.56.10.05465.6453.84140.28
255.812676.781.019.02.90.05553.8253.82163.89
256.312680.182.517.54.30.05753.8453.84166.23
256.452681.072.527.04.70.06353.8353.83152.30
256.652682.263.038.04.60.06353.8344.00143.46
256.812683.142.558.04.10.06053.8344.00131.12
256.972684.167.034.53.90.06353.8253.82150.05
257.152685.053.548.03.30.06553.8353.83137.76
257.312685.969.531.53.80.07353.8343.99152.85
257.472686.829.570.52.70.05844.0044.00157.08
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257.972689.223.577.53.40.03044.0044.00156.39
258.152690.130.570.52.70.07144.0044.00158.96
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259.312694.020.579.03.30.06743.9943.99150.09
259.472694.533.065.55.30.09544.0044.00153.31
259.652695.141.558.54.60.09553.8353.83123.12
259.812695.639.560.04.70.11553.8353.83121.71
259.972696.144.056.05.20.11253.8453.84125.28
260.152696.742.558.04.50.10653.8453.84123.83
260.312697.247.553.04.60.10753.8243.99130.18
260.472697.741.059.04.30.10553.8444.00123.76
260.652698.345.055.54.60.10253.8353.83125.54
260.812698.841.558.53.80.10653.8444.00124.82
260.972699.349.551.54.10.10853.8353.83132.01
261.152699.944.557.03.90.09653.8453.84128.32
261.312700.444.556.53.80.10053.8353.83128.39
261.472700.948.552.53.70.09353.8344.00132.80
261.652701.549.552.03.80.08553.8353.83133.29
261.812702.161.039.53.10.07053.8353.83142.99
261.972702.857.542.03.90.05953.8343.99137.92
262.152703.753.046.53.40.06453.8343.99133.36
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262.652706.150.550.53.10.06653.8343.99134.28
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262.972707.642.558.02.80.06353.8353.83125.72
263.052708.041.060.03.50.06153.8343.99127.67
263.152708.539.561.03.30.06653.8353.83125.55
263.312709.242.559.54.60.07153.8353.83130.84
263.472710.039.062.53.50.07153.8343.99126.01
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266.252723.429.072.53.50.09253.8343.99116.99
266.412724.237.064.54.40.10553.8343.99124.45
266.572725.044.558.05.80.10353.8344.00131.70
266.752725.850.553.06.80.09953.8353.83137.91
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267.032727.253.050.06.30.09253.8243.99139.83
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267.752730.759.544.57.90.08653.8353.83147.41
267.912731.457.545.58.60.07253.8353.83147.13
268.072732.264.540.08.90.07653.8253.82153.92
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268.912736.252.550.07.30.06053.8253.82141.02
269.412738.745.556.55.40.04853.8253.82133.37
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289.312836.236.063.03.90.02953.8453.84120.10
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293.312850.241.059.02.60.06553.8353.83126.29
293.812851.845.055.53.10.06753.8344.00130.46
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