| Title | Record of delta 18O and 17O-excess in ice from Vostok Antarctica during the last 150,000 years @discussion |
| Author | Miller, M.F. |
| Author Affil | Miller, M.F., British Antarctic Survey, Cambridge, United Kingdom |
| Source | Geophysical Research Letters, 35(23), Citation L23708. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0094-8276 |
| Publication Date | 2008 |
| Notes | In English. For reference to original see Landais, A., Barkan, E. and Luz, B., Geophys. Res. Lett., Vol. 35, L02709, 2008. 20 refs. GeoRef Acc. No: 299794. CRREL Acc. No: 64004345 |
| Index Terms | glacial geology; ice sheets; isotopes; oxygen; Pleistocene; snow; Antarctica-- Antarctic ice sheet; Antarctica--Dome C; Antarctica--Terra Nova Bay; Antarctica-- Vostok Station; Antarctic ice sheet; Antarctica; Cenozoic; chemostratigraphy; cores; Dome C; glacial environment; Holocene; interglacial environment; isotope ratios; O- 17/O-16; O-18/O-16; paleoenvironment; Quaternary; stable isotopes; Terra Nova Bay; upper Pleistocene; Victoria Land; Vostok Station; Wilkes Land |
| Abstract | Abstract from the original article: We measured delta 17O and delta 18O in recent Antarctic snow and down the Vostok ice core and calculated the excess of 17O with respect to VSMOW. The magnitude of the 1717O excess in the Holocene and the last interglacial is approx. 45 per meg, and it remains constant in a transect from the coast to the continental interior. Analysis of the transect data shows that the 17O-excess is not sensitive to temperature variations over the continent. There are significant shifts in 17O-excess from low values in glacial to high values in interglacial times. The observed shifts suggest higher normalized relative humidity and/or wind speeds over the source oceanic regions in glacial times. |
| URL | http://hdl.handle.net/10.1029/2008GL034505 |
| Publication Type | journal article |
| Record ID | 88292 |