Alkenone and foraminiferal carbon isotope data from Site 999 (NERC grant NE/H006273/1)
Dataset description
Temperature reconstructions indicate that the Pliocene was ~3 degrees C warmer globally than today, and several recent reconstructions of Pliocene atmospheric CO2 indicate that it was above pre-industrial levels and similar to those likely to be seen this century. However, many of these reconstructions have been of relatively low temporal resolution, meaning that these records may have failed to capture variations associated with the 41 Kyr glacial-interglacial cycles thought to operate in the Pliocene. These data represent new, high temporal resolution alkenone carbon isotope based record of pCO2 spanning 0 to 0.2 and 2.6 to 3.3 million years ago from ODP Site 999 (supplementing our other data repository focused on 2.8 to 3.3 million years ago). Our record allows a) direct comparison of alkenone-derived pCO2 from the Pleistocene to that of the Pliocene and b) comparison of the former to the ice core record. The raw data are sea surface temperature estimates from the Uk?37 proxy, foraminiferal and alkenone d13C values, from which carbon isotope fractionation during photosynthesis (ep) can be calculated. Using nutrient concentrations (growth rate correction) and SSTs, these ep values can be converted into [CO2(aq)] which in turn can be used to calculate pCO2.
Further information
For more information please contact:
Enquiries
British Geological Survey
Environmental Science Centre, Nicker Hill, Keyworth
Nottingham
NG12 5GG
Tel : +44 (0)115 936 3143
Fax :+44 (0)115 936 3276
Email :enquiries@bgs.ac.uk
Dataset details
| Author(s) | Not available |
|---|---|
| Principal Investigator(s) | Not available |
| Language | English |
| Curator | British Geological Survey |
| Supply media/format | MS Excel; Version: |
| Storage format | Not available |
| Frequency of update | not applicable |
| Start of capture | {ts '2010-08-01 00:00:00'} Not known |
| End of capture | {ts '2014-10-31 00:00:00'} 31st October 2014 |
| Contact details | |
| Department | Enquiries |
| Organisation | British Geological Survey |
| Address | Environmental Science Centre, Nicker Hill, Keyworth |
| City | Nottingham |
| County | Nottinghamshire |
| Country | United Kingdom |
| Postcode | NG12 5GG |
| enquiries@bgs.ac.uk | |
| Telephone | +44 (0)115 936 3143 |
| Fax | +44 (0)115 936 3276 |
| Keywords | |
| Topic category code (ISO) | geoscientificInformation (information pertaining to earth sciences) |
| Keywords | CARBON DIOXIDE
CLIMATOLOGY PLIOCENE |
| Keyword source | BGS Keyphrases |
| Spatial details | |
| Spatial Reference System | Latitude and Longitudes on undefined datum and spheroid [] |
| Dataset extent | |
| Coverage (Lat/Long) | North boundary : 12.75 East boundary : -78.73 South boundary : 12.74 West boundary : -78.74 |
| Metadata | |
| Metadata language | English |
| Metadata last updated | 8th March 2018 |
| Metadata standard compliance | NERC profile of ISO19115:2003 |
| Copyright and IPR | |
| The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused. | |
