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Werner, Kirstin; Tarasov, Pavel E; Andreev, Andrei A; Müller, Stefanie; Kienast, Frank; Zech, Michael; Zech, Wolfgang; Diekmann, Bernhard (2010): Results of the pollen analysis of the Dyanushka peat sediments K7/P2. doi:10.1594/PANGAEA.716835,
Supplement to: Werner, K et al. (2010): A 12.5-kyr history of vegetation dynamics and mire development with evidence of Younger Dryas larch presence in the Verkhoyansk Mountains, East Siberia, Russia. Boreas, 39, 56-68, doi:10.1111/j.1502-3885.2009.00116.x

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Abstract:
A 415cm thick permafrost peat section from the Verkhoyansk Mountains was radiocarbon-dated and studied using palaeobotanical and sedimentological approaches. Accumulation of organic-rich sediment commenced in a former oxbow lake, detached from a Dyanushka River meander during the Younger Dryas stadial, at ~12.5 kyr BP. Pollen data indicate that larch trees, shrub alder and dwarf birch were abundant in the vegetation at that time. Local presence of larch during the Younger Dryas is documented by well-preserved and radiocarbon-dated needles and cones. The early Holocene pollen assemblages reveal high percentages of Artemisia pollen, suggesting the presence of steppe-like communities around the site, possibly in response to a relatively warm and dry climate ~11.4-11.2 kyr BP. Both pollen and plant macrofossil data demonstrate that larch woods were common in the river valley. Remains of charcoal and pollen of Epilobium indicate fire events and mark a hiatus ~11.0-8.7 kyr BP. Changes in peat properties, C31/C27 alkane ratios and radiocarbon dates suggest that two other hiatuses occurred ~8.2-6.9 and ~6.7-0.6 kyr BP. Prior to 0.6 kyr BP, a major fire destroyed the mire surface. The upper 60 cm of the studied section is composed of aeolian sands modified in the uppermost part by the modern soil formation. For the first time, local growth of larch during the Younger Dryas has been verified in the western foreland of the Verkhoyansk Mountains (~170km south of the Arctic Circle), thus increasing our understanding of the quick reforestation of northern Eurasia by the early Holocene.
Coverage:
Latitude: 65.039330 * Longitude: 125.036830
Minimum DEPTH, sediment/rock: 0.050 m * Maximum DEPTH, sediment/rock: 4.150 m
Event(s):
K7/P2 * Latitude: 65.039330 * Longitude: 125.036830 * Elevation: 123.0 m * Location: Siberia, Russia * Device: Profile sampling (PROFILE)
Comment:
Empty fields in Age column indicate an undated hiatus horizon.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1DEPTH, sediment/rockDepthmGeocode
2AGEAgeka BPGeocode
3Alnus fruticosa-typeAln.f-T#Werner, KirstinCounting, palynology
4Alnus glutinosaAln.g#Werner, KirstinCounting, palynology
5Betula alba-typeBet.a-T#Werner, KirstinCounting, palynology
6Betula nana-typeBet.n-T#Werner, KirstinCounting, palynology
7JuniperusJun#Werner, KirstinCounting, palynology
8LarixLar#Werner, KirstinCounting, palynology
9PiceaPic#Werner, KirstinCounting, palynology
10Pinus pumilaPin.m#Werner, KirstinCounting, palynology
11Stomata pinaceaeS. pinaceae#Werner, KirstinCounting, palynology
12SalixSal#Werner, KirstinCounting, palynology
13ApiaceaeApiae#Werner, KirstinCounting, palynology
14ArtemisiaArt#Werner, KirstinCounting, palynology
15AsteraceaeAstae#Werner, KirstinCounting, palynology
16BrassicaceaeBraae#Werner, KirstinCounting, palynology
17CallitricheClt#Werner, KirstinCounting, palynology
18CaryophyllaceaeCphae#Werner, KirstinCounting, palynology
19ChenopodiaceaeCheae#Werner, KirstinCounting, palynology
20CichoriaceaeCchae#Werner, KirstinCounting, palynology
21CyperaceaeCypae#Werner, KirstinCounting, palynology
22DroseraDro#Werner, KirstinCounting, palynology
23EphedraEph#Werner, KirstinCounting, palynology
24EpilobiumEpl#Werner, KirstinCounting, palynology
25EricalesErl#Werner, KirstinCounting, palynology
26IndeterminataIndet#Werner, KirstinCounting, palynology
27LamiaceaeLamae#Werner, KirstinCounting, palynology
28LinumLin#Werner, KirstinCounting, palynology
29Menyanthes trifoliataMey.t#Werner, KirstinCounting, palynology
30MyriophyllumMyo#Werner, KirstinCounting, palynology
31PoaceaePoac#Werner, KirstinCounting, palynology
32Polygonum bistorta-typePol.b-T#Werner, KirstinCounting, palynology
33Polygonum lapathifolium-typePol.l-T#Werner, KirstinCounting, palynology
34PotamogetonPot#Werner, KirstinCounting, palynology
35RanunculaceaeRanae#Werner, KirstinCounting, palynology
36RosaceaeRosae#Werner, KirstinCounting, palynology
37RumexRum#Werner, KirstinCounting, palynology
38Sanguisorba officinalisSan.o#Werner, KirstinCounting, palynology
39SaxifragaSax#Werner, KirstinCounting, palynology
40ScrofulariaceaeScrofu#Werner, KirstinCounting, palynology
41SparganiumSpa#Werner, KirstinCounting, palynology
42ThalictrumTha#Werner, KirstinCounting, palynology
43UrticaUrt#Werner, KirstinCounting, palynology
44BotrychiumBot#Werner, KirstinCounting, palynology
45Botrychium lunaria-typeBot.l-T#Werner, KirstinCounting, palynology
46EquisetumEqu#Werner, KirstinCounting, palynology
47HuperziaHup#Werner, KirstinCounting, palynology
48Lycopodium annotinumLyc.a#Werner, KirstinCounting, palynology
49Lycopodium clavatumLyc.c#Werner, KirstinCounting, palynology
50PolypodiumPpd#Werner, KirstinCounting, palynology
51RicciaRic#Werner, KirstinCounting, palynology
52Selaginella rupestrisSel.r#Werner, KirstinCounting, palynology
53SphagnumSph#Werner, KirstinCounting, palynology
54PinaceaePinae#Werner, KirstinCounting, palynology
55Pollen, redepositedPollen redep#Werner, KirstinCounting, palynology
56CosmariumCoi#Werner, KirstinCounting, palynology
57PediastrumPdi#Werner, KirstinCounting, palynology
58GlomusGlomus#Werner, KirstinCounting, palynology
59Podospora-typePod-T#Werner, KirstinCounting, palynology
60SordariaSor#Werner, KirstinCounting, palynology
61SporormiellaSro#Werner, KirstinCounting, palynology
62Bryozoa, statoblastStatoblast#Werner, KirstinCounting, palynology
63Chironomidae remainsCha.rem#Werner, KirstinCounting, palynology
64CladoceraCladocera#Werner, KirstinCounting, palynology
65Insect remainsInsect rem#Werner, KirstinCounting, palynology
66NeorhabdocoelaNeorhabdocoela#Werner, KirstinCounting, palynology
67TardigradaTardigrada#Werner, KirstinCounting, palynologyM3
68TardigradaTardigrada#Werner, KirstinCounting, palynologyM5
69TardigradaTardigrada#Werner, KirstinCounting, palynologyM6
70TardigradaTardigrada#Werner, KirstinCounting, palynologyunknown
71ZygosporeZygospore#Werner, KirstinCounting, palynology
72LycopodiumLyc#Werner, KirstinCounting, palynology
73Pollen totalPollen tot#Werner, Kirstin
74Pollen per unit sediment massPollen/sed#/gWerner, Kirstin
Size:
5400 data points

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