Vegetation history of the marine isotope stage 7 interglacial complex at Ioannina, NW Greece
A new pollen record of the penultimate interglacial complex, corresponding approximately to marine isotope stage (MIS) 7 (ca 186,000245,000 years before present), has been generated in core I-284 from the Ioannina basin in northwest Greece. It represents the highest resolution terrestrial record for...
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2008
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Online Access: | http://sro.sussex.ac.uk/id/eprint/11860/ https://doi.org/10.1016/j.quascirev.2008.04.002 |
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ftunivsussex:oai:sro.sussex.ac.uk:11860 2023-07-30T04:05:33+02:00 Vegetation history of the marine isotope stage 7 interglacial complex at Ioannina, NW Greece Roucoux, K H Tzedakis, P C Frogley, M R Lawson, I T Preece, R C 2008-07-01 http://sro.sussex.ac.uk/id/eprint/11860/ https://doi.org/10.1016/j.quascirev.2008.04.002 unknown Roucoux, K H, Tzedakis, P C, Frogley, M R, Lawson, I T and Preece, R C (2008) Vegetation history of the marine isotope stage 7 interglacial complex at Ioannina, NW Greece. Quaternary Science Reviews, 27 (14). pp. 1378-1395. ISSN 0277-3791 Article PeerReviewed 2008 ftunivsussex https://doi.org/10.1016/j.quascirev.2008.04.002 2023-07-11T20:09:20Z A new pollen record of the penultimate interglacial complex, corresponding approximately to marine isotope stage (MIS) 7 (ca 186,000245,000 years before present), has been generated in core I-284 from the Ioannina basin in northwest Greece. It represents the highest resolution terrestrial record for this interval available to date, with a mean sampling interval of 200 years. The sequence records four forested intervals, correlated with MIS 7e, 7c, 7a and a sub-orbital-scale event following 7a but within MIS 7. The longest and most complete warm stage in terms of vegetational succession is MIS 7c, while the succession in MIS 7e appears to be truncated by a shift to colder, drier climatic conditions. The results of biomisation suggest that during all of these intervals winter temperatures in NW Greece remained lower than during the Eemian or Holocene, while smaller populations of sclerophyllous taxa indicate that summers may have been wetter. Intervening intervals of open vegetation are correlated with MIS 7d, 7b and an oscillation following 7a. Low tree pollen percentages during MIS 7d are interpreted as reflecting very cold and dry conditions, concomitant with a period of low northern hemisphere insolation which resulted from a rare combination of minimum obliquity and maximum precession. Higher tree pollen percentages throughout MIS 7b, by contrast, are indicative of relatively mild conditions, in agreement with marine temperature and ice volume records. Sub-orbital scale oscillations in tree population extent are also recorded in the new I-284 record suggesting that, just as in the last climatic cycle, NW Greece was affected by rapid climatic oscillations that are associated with changes in the North Atlantic. Article in Journal/Newspaper North Atlantic University of Sussex: Sussex Research Online Quaternary Science Reviews 27 13-14 1378 1395 |
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Open Polar |
collection |
University of Sussex: Sussex Research Online |
op_collection_id |
ftunivsussex |
language |
unknown |
description |
A new pollen record of the penultimate interglacial complex, corresponding approximately to marine isotope stage (MIS) 7 (ca 186,000245,000 years before present), has been generated in core I-284 from the Ioannina basin in northwest Greece. It represents the highest resolution terrestrial record for this interval available to date, with a mean sampling interval of 200 years. The sequence records four forested intervals, correlated with MIS 7e, 7c, 7a and a sub-orbital-scale event following 7a but within MIS 7. The longest and most complete warm stage in terms of vegetational succession is MIS 7c, while the succession in MIS 7e appears to be truncated by a shift to colder, drier climatic conditions. The results of biomisation suggest that during all of these intervals winter temperatures in NW Greece remained lower than during the Eemian or Holocene, while smaller populations of sclerophyllous taxa indicate that summers may have been wetter. Intervening intervals of open vegetation are correlated with MIS 7d, 7b and an oscillation following 7a. Low tree pollen percentages during MIS 7d are interpreted as reflecting very cold and dry conditions, concomitant with a period of low northern hemisphere insolation which resulted from a rare combination of minimum obliquity and maximum precession. Higher tree pollen percentages throughout MIS 7b, by contrast, are indicative of relatively mild conditions, in agreement with marine temperature and ice volume records. Sub-orbital scale oscillations in tree population extent are also recorded in the new I-284 record suggesting that, just as in the last climatic cycle, NW Greece was affected by rapid climatic oscillations that are associated with changes in the North Atlantic. |
format |
Article in Journal/Newspaper |
author |
Roucoux, K H Tzedakis, P C Frogley, M R Lawson, I T Preece, R C |
spellingShingle |
Roucoux, K H Tzedakis, P C Frogley, M R Lawson, I T Preece, R C Vegetation history of the marine isotope stage 7 interglacial complex at Ioannina, NW Greece |
author_facet |
Roucoux, K H Tzedakis, P C Frogley, M R Lawson, I T Preece, R C |
author_sort |
Roucoux, K H |
title |
Vegetation history of the marine isotope stage 7 interglacial complex at Ioannina, NW Greece |
title_short |
Vegetation history of the marine isotope stage 7 interglacial complex at Ioannina, NW Greece |
title_full |
Vegetation history of the marine isotope stage 7 interglacial complex at Ioannina, NW Greece |
title_fullStr |
Vegetation history of the marine isotope stage 7 interglacial complex at Ioannina, NW Greece |
title_full_unstemmed |
Vegetation history of the marine isotope stage 7 interglacial complex at Ioannina, NW Greece |
title_sort |
vegetation history of the marine isotope stage 7 interglacial complex at ioannina, nw greece |
publishDate |
2008 |
url |
http://sro.sussex.ac.uk/id/eprint/11860/ https://doi.org/10.1016/j.quascirev.2008.04.002 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Roucoux, K H, Tzedakis, P C, Frogley, M R, Lawson, I T and Preece, R C (2008) Vegetation history of the marine isotope stage 7 interglacial complex at Ioannina, NW Greece. Quaternary Science Reviews, 27 (14). pp. 1378-1395. ISSN 0277-3791 |
op_doi |
https://doi.org/10.1016/j.quascirev.2008.04.002 |
container_title |
Quaternary Science Reviews |
container_volume |
27 |
container_issue |
13-14 |
container_start_page |
1378 |
op_container_end_page |
1395 |
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1772817531064549376 |