Abstract:
Sediment cores were collected from the 3 sites (approx. 6m from Moutonnee Valley, 2.5m from Ablation Valley and 5m from Citadel Bastion on Alexander Island). They were analysed for physical property data including: magnetic susceptibility, wet weight, loss on ignition, grain size, isotopic content, bulk carbon, CHN, diatom content, forams, Authigenic carbonate, radiocarbon ages, Strontium and Neodymium content, major, trace and rare earth elements of sediments and clasts and clast lithological analysis. Analyses were carried out at Durham and Edinburgh with isotopic analysis conducted at NIGL (NERC Isotopic Geoscience Laboratory).
Keywords:
Ablation Valley, Citadel-Bastion Lake, Moutonnee Valley, glacial transport, sediment core analysis
| Access Constraints: | Requests for data can be made via the UK Polar Data Centre (UK PDC) at BAS. |
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| Creation Date: | 2012-02-22 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Prof Michael Bentley |
| Role(s) | Investigator |
| Organisation | Durham University |
| Name | Dr Dominic Hodgson |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Dr Steve Roberts |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Dr James Smith |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Prof David Sugden |
| Role(s) | Investigator |
| Organisation | University of Edinburgh |
| Parent Dataset: | N/A |
| Reference: | Hodgson, D.A., Roberts, S.J., Bentley, M.J., Smith, J.A., Johnson, J.S., Verleyen, E., Vyverman, W., Leng, M.J., Cziferszky, A., Fox, A.J., Sanderson, D.C.W. and Sugden, D.E. 2009. Exploring former subglacial Hodgson Lake. Paper I: site description, geomorphology and limnology. Quaternary Science Reviews, 28, 2295-2309. Hodgson, D.A., Roberts, S.J., Bentley, M.J., Carmichael, E.L., Smith, J.A., Verleyen, E., Vyverman, W., Geissler, P., Leng, M.J., Sanderson, D.C.W. and Sugden, D.E. 2009. Exploring former subglacial Hodgson Lake. Paper II: Palaeolimnology. Quaternary Science Reviews. 28, 2310-2325. Roberts, S.J., Hodgson, D.A., Bentley, M.J., Sanderson, D.C.W., Milne, G., Smith, J.A., Verleyen E., Balbo, A. and Sugden, D.E 2009. New constraints on deglaciation and relative sea-level change on Alexander Island, Antarctic Peninsula from elevated lake deltas,Geomorphology,112,122-134, doi:10.1016/j.geomorph.2009.05.011 Bentley, M.J., Hodgson, D.A., Smith, J.A., O Cofaigh, C. , Domack, E.W., Larter, R.D., Roberts, S.J. , Brachfeld, S., Leventer, A., Hjort, C., Hillenbrand, C-D., and Evans, J. 2009. Mechanisms of Holocene palaeoenvironmental change in the Antarctic Peninsula region, The Holocene, 19(1), 51-69 doi: 10.1177/0959683608096603. Roberts, S.J., Hodgson, D.A., Bentley, M.J., Smith, J.A., Millar, I.L., Olive, V., and Sugden, D. E. 2008. The Holocene history of George VI Ice Shelf, Antarctic Peninsula from clast-provenance analysis of epishelf lake sediments, Palaeogeography, Palaeoclimatology, Palaeoecology. 259 (2-3), 258-283. doi:10.1016/j.palaeo.2007.10.010. Bassett, S.E., Milne, G.A., Bentley, M.J. and Huybrechts, P. 2007. Modeling Antarctic Sea-Level Data to Explore the Possibility of a Dominant Antarctic Contribution to Meltwater Pulse IA, Quaternary Science Reviews, 26(17-18), 2113-2127. doi:10.1016/j.quascirev.2007.06.011. Smith, J.A, Bentley, M.J., Hodgson, D.A. and Cook, A.J., 2007. George VI Ice Shelf past history, present behaviour and potential mechanisms for future collapse, Antarctic Science, 19(1), 131-142. doi: 10.1017/S0954102007000193. Smith, J.A., Bentley, M.J., Hodgson, D.A., Roberts, S.J. Verleyen, E., Leng, M.J., Lloyd, J.M., Barrett, M.J, Bryant, C. and Sugden, D.E., 2007. Oceanic and atmospheric forcing of Early Holocene ice shelf retreat, George VI Ice Shelf, Antarctic Peninsula Quaternary Science Reviews, 26, 500-516, doi: 10.1016/j.quascirev.2006.05.006. Bentley, M.J., Fogwill, C.J., Kubik, P.W. and Sugden, D.E. 2006. Geomorphological evidence and cosmogenic 10Be/26Al exposure ages for the Last Glacial Maximum configuration and deglaciation history of the Antarctic Peninsula Ice Sheet, Geological Society of America Bulletin, 118, 1149-1159. DOI: 10.1130/B25735.1 Hodgson, D. A., Bentley, M. J., Roberts, S. J., Smith, J. A., Sugden, D. E. and Domack, E. W. 2006. Examining Holocene Stability of Antarctic Peninsula Ice Shelves, Eos Transactions, 87(31), 305-312. Sugden, D.E., Bentley, M.J., OCofaigh, C. 2006. Geological and geomorphological insights into Antarctic Ice Sheet evolution, Philosophical Transactions of the Royal Society A. DOI: 10.1098/rsta.2006.1791 Smith, J.A., Hodgson, D.A., Bentley, M.J., Verleyen, E., Leng, M.J. and Roberts, S.J., 2006. Limnology of two Antarctic epishelf lakes and their potential to record periods of ice shelf loss, Journal of Paleolimnology, 35, 373-394. doi: 10.1007/s10933-005-1333-8. Bentley, M.J., Hodgson, D.A., Sugden, D.E., Roberts, S.J., Smith, J.A., Leng, M.J. and Bryant, C., 2005. Early Holocene retreat of the George VI Ice Shelf, Antarctic Peninsula, Geology, 33(3), 173-176. DOI: 10.1130/G21203.1 Bentley, M.J., Hodgson, D.A., Smith, J.A. and Cox, N.J. 2005. Relative sea level curves for the South Shetlands and Marguerite Bay regions, Antarctic Peninsula, Quaternary Science Reviews, 24(10-11) 1203-1216. DOI: 10.1016/j.quascirev.2004.10.004. Project ref: AFI 02/69 Millennial-scale variability of George VI Ice Shelf, Antarctic Peninsula |
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| Lineage: | ||
| Temporal Coverage: | |
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| Start Date | 2001-08-01 |
| End Date | 2004-07-31 |
| Paleo Temporal Coverage: | |
| Paleo Start Date | ~0.01 Ma |
| Paleo End Date | ~0.00 Ma |
| Chronostratigraphic Unit | HOLOCENE |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -72.00915 |
| Northernmost | -70.85 |
| Longitude | |
| Westernmost | -68.4618 |
| Easternmost | -68.33333 |
| Altitude | |
| Min Altitude | 0m |
| Max Altitude | 500m |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Antarctica |
| Detailed Location | Moutonnee Valley, Ablation Valley, Citadel Bastion |
| Sensor(s): |
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| Source(s): |
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| Data Collection: | Several high-quality sediment cores were extracted from the Moutonnee (ML), Ablation (AL) and Citadel Lakes (CL). |
| Distribution: | |
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| Distribution Media | Various Online Data Transfer method |
| Distribution Size | A few GB |
| Distribution Format | EXCEL |
| Fees | N/A |
| Data Storage: | Electronic data and remaining sediment samples stored at BAS. |