Vegetation history of the marine isotope stage 7 interglacial complex at Ioannina, NW Greece

Roucoux, Katherine H.; Tzedakis, Polychronis C.; Frogley, Michael R.; Lawson, Ian T.; Preece, Richard C.

doi:10.1016/j.quascirev.2008.04.002

Cited by 72 publications

(70 citation statements)

References 69 publications

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“…4). A possible explanation for the high thermophilous oak percentages within MIS 7a is the persistence of relatively large tree populations through the cold period equivalent to MIS 7b, which was also established in pollen records by Lac du Bouchet (Reille et al, 2000) and at the Ioannina basin (Roucoux et al, 2008).…”

Section: Forested Periodsmentioning

confidence: 64%

“…All three forested stages of the penultimate interglacial complex are clearly recorded in other long terrestrial pollen sequences from Lebanon and southern Europe: (i) the Yammoûneh record (Gasse et al, 2015), (ii) the Tenaghi Philippon sequence (Tzedakis et al, 2003b), (iii) the Ioannina basin (Roucoux et al, 2008), and (iv) the Lake Ohrid sequence (Sadori et al, 2016). Figure 5 shows that the Lake Van pollen record generally agrees with the vegetation development of the Mediterranean region.…”

Section: Forested Periodsmentioning

confidence: 64%

“…In general, the second warm stage shows the highest amplitude of deciduous Quercus (peaked at 212.6 ka; Fig. 3f) of the entire sequence, which corresponds to the occurrence of the most floristically diverse and complete forest succession in southern European pollen diagrams at the same time (Follieri et al, 1988;Roucoux et al, 2008;Tzedakis et al, 2003b). In fact, deciduous Quercus percentages (ca.…”

Section: Forested Periodsmentioning

confidence: 92%

“…Preliminary comparison with the pollen records of Tenaghi Philippon (Tzedakis et al, 2003b) and the Ioannina basin (Roucoux et al, 2008) suggests that the extent and diversity of vegetation development is clearly controlled by insolation forcing and associated climate regimes (high summer temperatures, high winter precipitation). At Lake Van, the interglacial forest expansion is closely associated with the timing of the mid-June insolation peak (Tzedakis, 2005).…”

Section: Forested Periodsmentioning

confidence: 99%

“…This enables us to provide new detailed documentation of multiple vegetation and environmental changes in eastern Anatolia with a centennial-to millennial-scale temporal resolution of ∼ 180 to 780 years. Our record is placed in its regional context by the comparison with several archives from the Mediterranean region, e.g., Lake Ohrid (between the former Yugoslav republics of Macedonia and Albania; Sadori et al, 2016), the Ioannina basin (NW Greece; Frogley et al, 1999;Roucoux et al, 2008Roucoux et al, , 2011Tzedakis et al, 2003a), Tenaghi Philippon (NE Greece; Tzedakis et al, 2003bTzedakis et al, , 2006, and the Yammoûneh basin (Lebanon; Gasse et al, 2011Gasse et al, , 2015.…”

Section: Introductionmentioning

confidence: 99%

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A new high-resolution pollen sequence at Lake Van, Turkey: insights into penultimate interglacial–glacial climate change on vegetation history

Pickarski

Litt

2017

Clim. Past

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Abstract.A new detailed pollen and oxygen isotope record of the penultimate interglacial-glacial cycle, corresponding to the marine isotope stage (MIS) 7-6, has been generated from the Ahlat Ridge (AR) sediment core at Lake Van, Turkey. The presented Lake Van pollen record (ca. 250.2-128.8 ka) displays the highest temporal resolution in this region with a mean sampling interval of ∼ 540 years.The integration of all available proxies shows three temperate intervals of high effective soil moisture availability. This is evidenced by the predominance of steppe-forested landscapes (oak steppe-forest) similar to the present interglacial vegetation in this sensitive semiarid region between the Black Sea, the Caspian Sea, and the Mediterranean Sea.The wettest and warmest stage, as indicated by highest temperate tree percentages, can be broadly correlated with MIS 7c, while the amplitude of the tree population maximum during the oldest penultimate interglacial (MIS 7e) appears to be reduced due to warm but drier climatic conditions. The detailed comparison of the penultimate interglacial complex (MIS 7) to the last interglacial (Eemian, MIS 5e) and the current interglacial (Holocene, MIS 1) provides a vivid illustration of possible differences in the successive climatic cycles. Intervening periods of treeless vegetation can be correlated with MIS 7d and 7a, in which open landscapes favor local erosion and detrital sedimentation. The predominance of steppe elements (e.g., Artemisia, Chenopodiaceae) during MIS 7d indicates very dry and cold climatic conditions. In contrast, the occurrence of higher temperate tree percentages (mainly deciduous Quercus) throughout MIS 7b points to relatively humid and mild conditions, which is in agreement with other pollen sequences in southern Europe.Despite the general dominance of dry and cold desertsteppe vegetation during the penultimate glacial (broadly equivalent to MIS 6), this period can be divided into two parts: an early stage (ca. 193-157 ka) with higher oscillations in tree percentages and a later stage (ca. 157-131 ka) with lower tree percentages and subdued oscillations. This subdivision of the penultimate glacial is also seen in other pollen records from southern Europe (e.g., MD01-2444 and I-284;Margari et al., 2010;Roucoux et al., 2011). The occurring vegetation pattern is analogous to the division of MIS 3 and MIS 2 during the last glacial in the same sediment sequence. Furthermore, we are able to identify the MIS 6e event (ca. 179-159 ka) as described in marine pollen records, which reveals clear climate variability due to rapid alternation in the vegetation cover.In comparison with long European pollen archives, speleothem isotope records from the Near East, and global climate parameters (e.g., insolation, atmospheric CO 2 content), the new high-resolution Lake Van record presents an improved insight into regional vegetation dynamics and climate variability in the eastern Mediterranean region.

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Section: Forested Periodsmentioning

confidence: 64%

Section: Forested Periodsmentioning

confidence: 64%

Section: Forested Periodsmentioning

confidence: 92%

Section: Forested Periodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A new high-resolution pollen sequence at Lake Van, Turkey: insights into penultimate interglacial–glacial climate change on vegetation history

Pickarski

Litt

2017

Clim. Past

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A 249 kyr stack of eight loess grain size records from northern China documenting millennial‐scale climate variability

Yang

Ding

2014

Geochem Geophys Geosyst

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In order to construct a stacked climatic record of millennial-scale variability for northern China, grain size was measured for 12,330 samples from eight thick loess sections. Between section correlation of these grain size records shows that, although small depositional hiatuses may be present within a single section, most parts of the sections display continuous dust deposition. By correlating the eight records with the precisely dated Chinese stalagmite d 18 O record, a stacked 249 kyr-long grain size time series was constructed, termed the ''CHILOMOS'' record, which is the first high-resolution stack documenting millennialscale variability in northern China. This stack shows millennial-scale climatic events superimposed on a prominent cooling trend during the last and penultimate glaciations, consistent with the pattern of increasing global ice volume. However, this cooling trend is dampened in the stalagmite record and totally suppressed in the low-latitude ocean record. It follows that the Loess Plateau, far from the low-latitude ocean, is largely influenced by the northern high-latitude ice sheets, while the proximal stalagmites of southern China primarily document signals from the low-latitude ocean. Cross correlations of climatic records from high and low latitudes demonstrate that the millennial-scale abrupt changes originated in the northern polar area and were propagated into East Asia largely through the East Asian winter monsoon. The CHILO-MOS record also confirms that the driest and coldest interval of the last 249 kyr occurred in the late MIS 6, and that MIS 7d was extremely cold and dry, similar to the stadial conditions of MIS 6.

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The position and context of Middle Palaeolithic industries from the Ebbsfleet Valley, Kent, UK

Scott

Ashton

Penkman

et al. 2010

J Quaternary Science

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The late Middle Pleistocene sites in the Ebbsfleet Valley, Kent, UK, have yielded archaeological assemblages critical to understanding the early Middle Palaeolithic of northwestern Europe. Despite a long history of research, the nature and context of these assemblages are still poorly understood. This paper clarifies the stratigraphic, environmental and archaeological records at Ebbsfleet. These reflect a cold-warm-cold sequence of climatic events, preserved within part of the Taplow/ Mucking Formation of the Thames (Marine Isotope Stage (MIS) 8/7/6). Levallois artefacts are shown to be restricted to the lower part of the Ebbsfleet Channel sequence (Phases I and II) and are assigned to late MIS 8/early MIS 7. This material is associated with fauna indicative of open environments during both cool and temperate conditions. Handaxe assemblages are recorded from higher up the sequence (Phases III-V), but have been redeposited from higher terrace units nearby. No primary context archaeology is apparent during these later phases of aggradation. This may indicate that humans abandoned the site once available raw material became inaccessible, and may also reflect a decline in human presence in Britain during the latter part of MIS 7.

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Vegetation history of the marine isotope stage 7 interglacial complex at Ioannina, NW Greece

Cited by 72 publications

References 69 publications

A new high-resolution pollen sequence at Lake Van, Turkey: insights into penultimate interglacial–glacial climate change on vegetation history

A new high-resolution pollen sequence at Lake Van, Turkey: insights into penultimate interglacial–glacial climate change on vegetation history

A 249 kyr stack of eight loess grain size records from northern China documenting millennial‐scale climate variability

The position and context of Middle Palaeolithic industries from the Ebbsfleet Valley, Kent, UK

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