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Amarathunga, Udara; Rohling, Eelco J; Grant, Katharine M; Francke, Alexander; Latimer, James; Klaebe, Robert M; Heslop, David; Roberts, Andrew; Hutchinson, David K (2024): Plio-Pleistocene Neodymium (Nd) isotope data for Ocean Drilling Program (ODP) Site 967, Eastern Mediterranean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.971255

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Published: 2024-07-18 • DOI registered: 2024-07-18

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Abstract:
Past North African humid periods resulted in expanded vegetation over the Sahara, due to northward tropical African rainbelt displacement. Commonly, these precession-timed North African humid periods ended within 15 thousand years as the monsoon rainbelt retreated southward during subsequent dry intervals. Eastern Mediterranean organic-rich layers (sapropels) reflect North African humid periods through out the Plio-Pleistocene, which are interbedded with the marls deposited during intervening dry periods. ODP Site 160-967 in the eastern Mediterranean is composed of sediments delivered from North Africa back to the Miocene/Pliocene boundary. Here we present a low-resolution Neodymium isotope record for the past 5 million years (from sapropels and marls), which reflects sediment source region variability to the eastern Mediterranean across the Plio-Pleistocene.
Keyword(s):
North African monsoon; Pliocene climate; sapropels
Supplement to:
Amarathunga, Udara; Rohling, Eelco J; Grant, Katharine M; Francke, Alexander; Latimer, James; Klaebe, Robert M; Heslop, David; Roberts, Andrew P; Hutchinson, David K (2024): Mid-Pliocene glaciation preceded by a 0.5-million-year North African humid period. Nature Geoscience, 17(7), 660-666, https://doi.org/10.1038/s41561-024-01472-8
Coverage:
Median Latitude: 34.069700 * Median Longitude: 32.725450 * South-bound Latitude: 34.068300 * West-bound Longitude: 32.725300 * North-bound Latitude: 34.071100 * East-bound Longitude: 32.725600
Date/Time Start: 1995-04-02T11:40:00 * Date/Time End: 1995-04-03T11:50:00
Minimum DEPTH, sediment/rock: 1.15 m * Maximum DEPTH, sediment/rock: 121.64 m
Event(s):
160-967B  * Latitude: 34.068300 * Longitude: 32.725300 * Date/Time Start: 1995-04-02T11:40:00 * Date/Time End: 1995-04-03T00:40:00 * Elevation: -2555.0 m * Penetration: 121.5 m * Recovery: 126.61 m * Location: Eastern Basin * Campaign: Leg160 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 14 cores; 121.5 m cored; 0 m drilled; 104.2 % recovery
160-967C  * Latitude: 34.071100 * Longitude: 32.725600 * Date/Time Start: 1995-04-03T00:40:00 * Date/Time End: 1995-04-03T11:50:00 * Elevation: -2553.0 m * Penetration: 114.4 m * Recovery: 119.55 m * Location: Eastern Basin * Campaign: Leg160 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 13 cores; 114.4 m cored; 0 m drilled; 104.5 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventAmarathunga, Udara
2 Latitude of eventLatitudeAmarathunga, Udara
3 Longitude of eventLongitudeAmarathunga, Udara
4 Date/Time of eventDate/TimeAmarathunga, Udara
5 Elevation of eventElevationmAmarathunga, Udara
6 Sample code/labelSample labelAmarathunga, Udara
7 DEPTH, sediment/rockDepth sedmAmarathunga, UdaraGeocode
8 Depth, compositeDepth compmcdAmarathunga, Udara
9 AGEAgeka BPAmarathunga, UdaraGeocode
10 ε-Neodymiumε-NdAmarathunga, UdaraCalculated from 143Nd/144Nd ratio
11 ε-Neodymium, errorε-Nd e±Amarathunga, UdaraCalculated from 143Nd/144Nd ratio
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
100 data points

Data

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

1 
Event		2 
Latitude		3 
Longitude		4 
Date/Time		5 
Elevation [m]		6 
Sample label		7 
Depth sed [m]		8  
Depth comp [mcd]		9 
Age [ka BP]		10  
ε-Nd		11  
ε-Nd e [±]
160-967B 34.068332.72531995-04-02T11:40-2555160-967B-1H-1,1151.151.184377.830-6.6128535150.000026
160-967B34.068332.72531995-04-02T11:40-2555160-967B-1H-2,71.571.5850016.005-6.5215083550.000028
160-967B34.068332.72531995-04-02T11:40-2555160-967B-3H-5,4121.2123.01000604.613-6.4123514060.000029
160-967B34.068332.72531995-04-02T11:40-2555160-967B-3H-5,5321.3323.13000608.773-6.9246290750.000051
160-967B34.068332.72531995-04-02T11:40-2555160-967B-4H-1,7425.0427.89100789.262-4.7357862660.000026
160-967B34.068332.72531995-04-02T11:40-2555160-967B-4H-1,8925.1928.03800794.058-4.0139786750.000017
160-967B34.068332.72531995-04-02T11:40-2555160-967B-4H-7,3333.6336.490001090.907-5.8591072060.000037
160-967B34.068332.72531995-04-02T11:40-2555160-967B-4H-7,5033.8036.648001097.023-5.1249400160.000024
160-967C 34.071132.72561995-04-03T00:40-2553160-967C-5H-6,345.5350.142001605.030-4.3548507910.000049
160-967C34.071132.72561995-04-03T00:40-2553160-967C-5H-6,3145.8150.472001618.465-7.0235156190.000030
160-967B34.068332.72531995-04-02T11:40-2555160-967B-8H-2,2464.0469.590002213.011-5.3166093810.000231
160-967B34.068332.72531995-04-02T11:40-2555160-967B-8H-2,4964.2969.840002222.793-6.0644587410.000063
160-967C34.071132.72561995-04-03T00:40-2553160-967C-7H-5,463.0475.839002480.322-5.7582836230.000026
160-967C34.071132.72561995-04-03T00:40-2553160-967C-7H-5,2663.2676.060002490.094-8.3510547400.000961
160-967B34.068332.72531995-04-02T11:40-2555160-967B-9H-5,12479.0485.576002926.362-6.2424127750.000051
160-967B34.068332.72531995-04-02T11:40-2555160-967B-9H-5,14479.2485.791002936.021-6.0217404870.000026
160-967B34.068332.72531995-04-02T11:40-2555160-967B-10H-1,7782.0790.506003156.013-5.0051381290.000020
160-967B34.068332.72531995-04-02T11:40-2555160-967B-10H-1,10382.3390.813003169.444-5.6002890930.000020
160-967C34.071132.72561995-04-03T00:40-2553160-967C-9H-6,10884.5899.990003556.143-4.4862554080.000021
160-967C34.071132.72561995-04-03T00:40-2553160-967C-9H-6,13484.84100.250003566.857-8.0201467700.000120
160-967C34.071132.72561995-04-03T00:40-2553160-967C-10H-3,11789.67105.570003829.975-7.9971324790.000037
160-967C34.071132.72561995-04-03T00:40-2553160-967C-11H-1,1395.13112.120004243.630-6.3404624710.000073
160-967C34.071132.72561995-04-03T00:40-2553160-967C-11H-1,2595.25112.240004251.515-5.5334056390.000053
160-967C34.071132.72561995-04-03T00:40-2553160-967C-11H-7,56104.56121.560004908.058-6.2277728140.000045
160-967C34.071132.72561995-04-03T00:40-2553160-967C-11H-7,64121.64121.640004919.077-6.1887901400.000027