Raymo, Maureen E; Grant, B; Horowitz, Michael; Rau, Greg H (1996): Estimate of mid-Pliocene Paleo-pCO2 for ODP Hole 130-806 (Table 1) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.681721, Supplement to: Raymo, ME et al. (1996): Mid-Pliocene warmth: stronger greenhouse and stronger conveyor. Marine Micropaleontology, 27(1-4), 313-326, https://doi.org/10.1016/0377-8398(95)00048-8
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Three million years ago, prior to the onset of northern hemisphere glaciation, global mean temperatures may have been as much as 3.5 °C warmer than at present. We present evidence, based on the carbon isotopic composition of marine organic matter, that atmospheric CO2 levels at this time were on average only about 35% higher than the preindustrial value of 280 ppm. We also present carbon isotopic evidence for stronger thermohaline circulation in the Atlantic Ocean during the warmest intervals and propose that the North Atlantic “conveyor belt” may act as a positive feedback to global warming by enhancing sea ice retreat and decreasing high latitude albedo. Based on our results, it seems unlikely that the mid Pliocene warm period was a doubled CO, world.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 0.318667 * Longitude: 159.361000
Date/Time Start: 1990-02-17T00:00:00 * Date/Time End: 1990-02-25T00:00:00
Minimum DEPTH, sediment/rock: 0.09 m * Maximum DEPTH, sediment/rock: 82.54 m
Event(s):
130-806 * Latitude: 0.318667 * Longitude: 159.361000 * Date/Time Start: 1990-02-17T00:00:00 * Date/Time End: 1990-02-25T00:00:00 * Elevation: -2520.5 m * Penetration: 1603.2 m * Recovery: 1275.9 m * Location: North Pacific Ocean * Campaign: Leg130 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 149 cores; 1414.4 m cored; 0 m drilled; 90.2% recovery
Comment:
Depth is composite depth (mcd), age estimetes are calibrated to timescale of Shackleton et al (1990)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | AGE | Age | ka BP | Geocode | ||
| 3 | Sample code/label | Sample label | Raymo, Maureen E | DSDP/ODP/IODP sample designation | ||
| 4 | δ13C, organic carbon | δ13C Corg | ‰ PDB | Raymo, Maureen E | particultae organic matter, values determined from delta13C of Globigerinoides sacculifer minus 0.7 per mil (G. sacculifer data from Schmidt et al., 1993 and unpubl. data of E. Jansen) | |
| 5 | Carbon/Nitrogen ratio | C/N | Raymo, Maureen E | |||
| 6 | δ13C, dissolved inorganic carbon | δ13C DIC | ‰ PDB | Raymo, Maureen E | ||
| 7 | Sea surface temperature, annual mean | SST (1-12) | °C | Raymo, Maureen E | ||
| 8 | - | - | Raymo, Maureen E | epsilon p [per mil ] = delta 13C CO2(aq.) - Delta13C plant | ||
| 9 | Partial pressure of carbon dioxide (ambient atmosphere) | pCO2air | µatm | Raymo, Maureen E | Paleo-pCO2 estimates |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
571 data points