Barker, Stephen (2021): Planktic foraminiferal and Ice Rafted Debris (IRD) counts from ODP Site 981 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.929741
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Abstract:
This dataset contains counts of Neogloboquadrina pachyderma, whole foraminifera and Ice Rafted Debris from ODP Site 981 covering the period 0.95-1.1Ma. Sediment samples from the splice of ODP Site 983 [Jansen et al., 1996] were spun overnight and washed with deionised water through a 6 μm sieve before being dried at 40°C. IRD and foraminiferal counts were made on the >150 μm fraction after splitting to yield approximately 300 entities. IRD was considered as the total number of lithogenic/terrigenous grains counted. Only left coiling specimens of N. pachyderma were counted and all 5 morphotypes of N. pachyderma found in recent Arctic sediments [Eynaud, 2011] were counted.
Supplement to:
Barker, Stephen; Zhang, Xu; Jonkers, Lukas; Lordsmith, Sian; Conn, Stephen; Knorr, Gregor (2021): Strengthening Atlantic Inflow Across the Mid‐Pleistocene Transition. Paleoceanography and Paleoclimatology, 36(4), e2020PA004200, https://doi.org/10.1029/2020PA004200
Further details:
Eynaud, Frédérique (2011): Planktonic foraminifera in the Arctic: a paleoceanographic view. IOP Conference Series: Earth and Environmental Science, 14, 1-12, https://doi.org/10.1088/1755-1315/14/1/012005
Jansen, Eystein; Raymo, Maureen E; Blum, Peter; et al. (1996): Proceedings of the Ocean Drilling Program, 162 Initial Reports. Proceedings of the Ocean Drilling Program, Ocean Drilling Program, 162, https://doi.org/10.2973/odp.proc.ir.162.1996
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 55.477350 * Median Longitude: -14.650800 * South-bound Latitude: 55.477200 * West-bound Longitude: -14.650800 * North-bound Latitude: 55.477500 * East-bound Longitude: -14.650800
Date/Time Start: 1995-07-12T01:20:00 * Date/Time End: 1995-07-15T03:15:00
Minimum DEPTH, sediment/rock: 64.00 m * Maximum DEPTH, sediment/rock: 70.51 m
Event(s):
162-981A * Latitude: 55.477200 * Longitude: -14.650800 * Date/Time Start: 1995-07-12T01:20:00 * Date/Time End: 1995-07-13T07:00:00 * Elevation: -2184.0 m * Penetration: 320 m * Recovery: 327.51 m * Location: South Atlantic Ocean * Campaign: Leg162 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 34 cores; 320 m cored; 0 m drilled; 102.3 % recovery
162-981C * Latitude: 55.477500 * Longitude: -14.650800 * Date/Time Start: 1995-07-13T22:55:00 * Date/Time End: 1995-07-15T03:15:00 * Elevation: -2464.0 m * Penetration: 281.2 m * Recovery: 293.81 m * Location: South Atlantic Ocean * Campaign: Leg162 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 30 cores; 281.2 m cored; 0 m drilled; 104.5 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Barker, Stephen | |||
| 2 | Sample code/label | Sample label | Barker, Stephen | DSDP/ODP/IODP sample designation | ODP | |
| 3 | DEPTH, sediment/rock | Depth sed | m | Barker, Stephen | Geocode – MCD_TOP | |
| 4 | AGE | Age | ka BP | Barker, Stephen | Geocode – U1385 age | |
| 5 | Mass | Mass | g | Barker, Stephen | > 63 µm | |
| 6 | Mass | Mass | g | Barker, Stephen | < 63 µm | |
| 7 | Fraction | Frac | % | Barker, Stephen | Coarse | |
| 8 | Split | Split | # | Barker, Stephen | ||
| 9 | Factor | Factor | Barker, Stephen | |||
| 10 | Number | n | # | Barker, Stephen | Counting >150 µm fraction | Entities |
| 11 | Number | n | # | Barker, Stephen | Counting >150 µm fraction | Whole shells |
| 12 | Neogloboquadrina pachyderma sinistral | N. pachyderma s | # | Barker, Stephen | Counting >150 µm fraction | |
| 13 | Foraminifera, planktic, other | Foram plankt oth | # | Barker, Stephen | Counting >150 µm fraction | |
| 14 | Ice rafted debris | IRD | # | Barker, Stephen | Counting >150 µm fraction | |
| 15 | Neogloboquadrina pachyderma sinistral | N. pachyderma s | % | Barker, Stephen | ||
| 16 | Ice rafted debris | IRD | #/g | Barker, Stephen |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
8258 data points
Download Data
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