Pollen counts of sediment core MD95-2039
Pollen and oceanographic data from deep ocean core MD95-2039 provide a centennial to millennial scale record of conditions offshore and of the vegetation of north-west Iberia for the period 10–65 ka. The planktonic oxygen isotope record of this core, reflecting predominantly sea surface temperature...
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2005
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.484979 2023-05-15T16:28:42+02:00 Pollen counts of sediment core MD95-2039 Roucoux, Katherine H de Abreu, Lucia Shackleton, Nicholas J Tzedakis, Polychronis C LATITUDE: 40.578500 * LONGITUDE: -10.348500 * DATE/TIME START: 1995-07-07T00:00:00 * DATE/TIME END: 1995-07-07T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.850 m * MAXIMUM DEPTH, sediment/rock: 14.685 m 2005-08-16 text/tab-separated-values, 7319 data points https://doi.pangaea.de/10.1594/PANGAEA.484979 https://doi.org/10.1594/PANGAEA.484979 en eng PANGAEA Roucoux, Katherine H; Shackleton, Nicholas J; de Abreu, Lucia; Schönfeld, Joachim; Tzedakis, Polychronis C (2001): Combined Marine Proxy and Pollen Analyses Reveal Rapid Iberian Vegetation Response to North Atlantic Millennial-Scale Climate Oscillations. Quaternary Research, 56(1), 128-132, https://doi.org/10.1006/qres.2001.2218 https://doi.pangaea.de/10.1594/PANGAEA.484979 https://doi.org/10.1594/PANGAEA.484979 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Roucoux, Katherine H; de Abreu, Lucia; Shackleton, Nicholas J; Tzedakis, Polychronis C (2005): The response of NW Iberian vegetation to North Atlantic climate oscillations during the last 65 kyr. Quaternary Science Reviews, 24(14-15), 1637-1653, https://doi.org/10.1016/j.quascirev.2004.08.022 Abies Adonis Alnus Androsace Apium Armeria maritima-type Artemisia Betula Bryophyte spores Buxus Callitriche Calluna CALYPSO Calypso Corer Cannabis-type Caryophyllaceae Castanea Cedrus Centaurea cf. Alchemilla cf. Chelidonium majus cf. Lithospermum cf. Myrica cf. Quercus Chenopodiaceae Chrysosplenium Cistaceae Compositae Liguliflorae Compositae Tubuliflorae Consolida ambigua Cornaceae Corylus Counting palynology Crassulaceae Crithmum maritimum Cruciferea Cyperaceae DEPTH sediment/rock Empetrum Ephedra distachya Ephedra fragilis Ericaceae undifferentiated Euphorbia Exotic grains Fabaceae Fagus Filipendula Frangula alnus Dataset 2005 ftpangaea https://doi.org/10.1594/PANGAEA.484979 https://doi.org/10.1016/j.quascirev.2004.08.022 https://doi.org/10.1006/qres.2001.2218 2023-01-20T08:21:52Z Pollen and oceanographic data from deep ocean core MD95-2039 provide a centennial to millennial scale record of conditions offshore and of the vegetation of north-west Iberia for the period 10–65 ka. The planktonic oxygen isotope record of this core, reflecting predominantly sea surface temperature (SST), shows a pattern of millennial-scale oscillations that is very similar to climatic changes recorded by the Greenland ice core records over the same interval. In turn, tree populations show a pattern of rapid expansions and contractions that follow the pronounced and abrupt isotopic shifts recorded offshore. Through Marine Isotope Stage (MIS) 3, this millennial-scale pattern of vegetation change, alternating between steppe and open woodland, is superimposed on a longer-term pattern of shrinking ericaceous heathland and decreasing size of successive interstadial tree populations. Trees persisted during the Last Glacial Maximum (LGM), at greater abundance than during many of the coldest episodes of MIS 3. This agrees with the marine data which indicate that LGM sea surface temperatures here were significantly warmer than the minima recorded in MIS 3. Our combined marine-terrestrial record, together with data from nearby sequences, provides a stepping stone between terrestrial sequences and the Greenland ice core and North Atlantic marine records. This will permit a better understanding of the behaviour of vegetation across different regions at several scales of climatic forcing. Dataset Greenland Greenland ice core ice core North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Greenland ENVELOPE(-10.348500,-10.348500,40.578500,40.578500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Abies Adonis Alnus Androsace Apium Armeria maritima-type Artemisia Betula Bryophyte spores Buxus Callitriche Calluna CALYPSO Calypso Corer Cannabis-type Caryophyllaceae Castanea Cedrus Centaurea cf. Alchemilla cf. Chelidonium majus cf. Lithospermum cf. Myrica cf. Quercus Chenopodiaceae Chrysosplenium Cistaceae Compositae Liguliflorae Compositae Tubuliflorae Consolida ambigua Cornaceae Corylus Counting palynology Crassulaceae Crithmum maritimum Cruciferea Cyperaceae DEPTH sediment/rock Empetrum Ephedra distachya Ephedra fragilis Ericaceae undifferentiated Euphorbia Exotic grains Fabaceae Fagus Filipendula Frangula alnus |
spellingShingle |
Abies Adonis Alnus Androsace Apium Armeria maritima-type Artemisia Betula Bryophyte spores Buxus Callitriche Calluna CALYPSO Calypso Corer Cannabis-type Caryophyllaceae Castanea Cedrus Centaurea cf. Alchemilla cf. Chelidonium majus cf. Lithospermum cf. Myrica cf. Quercus Chenopodiaceae Chrysosplenium Cistaceae Compositae Liguliflorae Compositae Tubuliflorae Consolida ambigua Cornaceae Corylus Counting palynology Crassulaceae Crithmum maritimum Cruciferea Cyperaceae DEPTH sediment/rock Empetrum Ephedra distachya Ephedra fragilis Ericaceae undifferentiated Euphorbia Exotic grains Fabaceae Fagus Filipendula Frangula alnus Roucoux, Katherine H de Abreu, Lucia Shackleton, Nicholas J Tzedakis, Polychronis C Pollen counts of sediment core MD95-2039 |
topic_facet |
Abies Adonis Alnus Androsace Apium Armeria maritima-type Artemisia Betula Bryophyte spores Buxus Callitriche Calluna CALYPSO Calypso Corer Cannabis-type Caryophyllaceae Castanea Cedrus Centaurea cf. Alchemilla cf. Chelidonium majus cf. Lithospermum cf. Myrica cf. Quercus Chenopodiaceae Chrysosplenium Cistaceae Compositae Liguliflorae Compositae Tubuliflorae Consolida ambigua Cornaceae Corylus Counting palynology Crassulaceae Crithmum maritimum Cruciferea Cyperaceae DEPTH sediment/rock Empetrum Ephedra distachya Ephedra fragilis Ericaceae undifferentiated Euphorbia Exotic grains Fabaceae Fagus Filipendula Frangula alnus |
description |
Pollen and oceanographic data from deep ocean core MD95-2039 provide a centennial to millennial scale record of conditions offshore and of the vegetation of north-west Iberia for the period 10–65 ka. The planktonic oxygen isotope record of this core, reflecting predominantly sea surface temperature (SST), shows a pattern of millennial-scale oscillations that is very similar to climatic changes recorded by the Greenland ice core records over the same interval. In turn, tree populations show a pattern of rapid expansions and contractions that follow the pronounced and abrupt isotopic shifts recorded offshore. Through Marine Isotope Stage (MIS) 3, this millennial-scale pattern of vegetation change, alternating between steppe and open woodland, is superimposed on a longer-term pattern of shrinking ericaceous heathland and decreasing size of successive interstadial tree populations. Trees persisted during the Last Glacial Maximum (LGM), at greater abundance than during many of the coldest episodes of MIS 3. This agrees with the marine data which indicate that LGM sea surface temperatures here were significantly warmer than the minima recorded in MIS 3. Our combined marine-terrestrial record, together with data from nearby sequences, provides a stepping stone between terrestrial sequences and the Greenland ice core and North Atlantic marine records. This will permit a better understanding of the behaviour of vegetation across different regions at several scales of climatic forcing. |
format |
Dataset |
author |
Roucoux, Katherine H de Abreu, Lucia Shackleton, Nicholas J Tzedakis, Polychronis C |
author_facet |
Roucoux, Katherine H de Abreu, Lucia Shackleton, Nicholas J Tzedakis, Polychronis C |
author_sort |
Roucoux, Katherine H |
title |
Pollen counts of sediment core MD95-2039 |
title_short |
Pollen counts of sediment core MD95-2039 |
title_full |
Pollen counts of sediment core MD95-2039 |
title_fullStr |
Pollen counts of sediment core MD95-2039 |
title_full_unstemmed |
Pollen counts of sediment core MD95-2039 |
title_sort |
pollen counts of sediment core md95-2039 |
publisher |
PANGAEA |
publishDate |
2005 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.484979 https://doi.org/10.1594/PANGAEA.484979 |
op_coverage |
LATITUDE: 40.578500 * LONGITUDE: -10.348500 * DATE/TIME START: 1995-07-07T00:00:00 * DATE/TIME END: 1995-07-07T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.850 m * MAXIMUM DEPTH, sediment/rock: 14.685 m |
long_lat |
ENVELOPE(-10.348500,-10.348500,40.578500,40.578500) |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice core ice core North Atlantic |
genre_facet |
Greenland Greenland ice core ice core North Atlantic |
op_source |
Supplement to: Roucoux, Katherine H; de Abreu, Lucia; Shackleton, Nicholas J; Tzedakis, Polychronis C (2005): The response of NW Iberian vegetation to North Atlantic climate oscillations during the last 65 kyr. Quaternary Science Reviews, 24(14-15), 1637-1653, https://doi.org/10.1016/j.quascirev.2004.08.022 |
op_relation |
Roucoux, Katherine H; Shackleton, Nicholas J; de Abreu, Lucia; Schönfeld, Joachim; Tzedakis, Polychronis C (2001): Combined Marine Proxy and Pollen Analyses Reveal Rapid Iberian Vegetation Response to North Atlantic Millennial-Scale Climate Oscillations. Quaternary Research, 56(1), 128-132, https://doi.org/10.1006/qres.2001.2218 https://doi.pangaea.de/10.1594/PANGAEA.484979 https://doi.org/10.1594/PANGAEA.484979 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.484979 https://doi.org/10.1016/j.quascirev.2004.08.022 https://doi.org/10.1006/qres.2001.2218 |
_version_ |
1766018377785016320 |