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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
1Event labelEventAmarathunga, Udara
2Latitude of eventLatitudeAmarathunga, Udara
3Longitude of eventLongitudeAmarathunga, Udara
4Date/Time of eventDate/TimeAmarathunga, Udara
5Elevation of eventElevationmAmarathunga, Udara
6Sample code/labelSample labelAmarathunga, Udara
7DEPTH, sediment/rockDepth sedmAmarathunga, UdaraGeocode
8Depth, compositeDepth compmcdAmarathunga, Udara
9AGEAgeka BPAmarathunga, UdaraGeocode
10ε-Neodymiumε-NdAmarathunga, UdaraCalculated from 143Nd/144Nd ratio
11ε-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

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