Data Description

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Citation:
Werner, K et al. (2010): Results of the pollen analysis of the Dyanushka peat sediments K7/P2. doi:10.1594/PANGAEA.716835,
Supplement to: Werner, Kirstin; Tarasov, Pavel E; Andreev, Andrei A; Müller, Stefanie; Kienast, Frank; Zech, Michael; Zech, Wolfgang; Diekmann, Bernhard (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
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.
Project(s):
Coverage:
Latitude: 65.039330 * Longitude: 125.036830
Minimum Age: 0.070 ka BP * Maximum Age: 12.532 ka BP
Minimum DEPTH, sediment/rock: 0.0 m * Maximum DEPTH, sediment/rock: 4.2 m
Event(s):
K7/P2 * * Latitude: 65.039330 * Longitude: 125.036830 * Elevation: 123.0 m * Location: Siberia, Russia * * Device: Profile sampling *
Comment:
Empty fields in Age column indicate an undated hiatus horizon.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1DEPTH, sediment/rock *DepthmGeocode
2AGE *Ageka BPGeocode
3Alnus fruticosa-type *Aln.f-T#Werner, Kirstin *Counting, palynology *
4Alnus glutinosa *Aln.g#Werner, Kirstin *Counting, palynology *
5Betula alba-type *Bet.a-T#Werner, Kirstin *Counting, palynology *
6Betula nana-type *Bet.n-T#Werner, Kirstin *Counting, palynology *
7Juniperus *Jun#Werner, Kirstin *Counting, palynology *
8Larix *Lar#Werner, Kirstin *Counting, palynology *
9Picea *Pic#Werner, Kirstin *Counting, palynology *
10Pinus pumila *Pin.m#Werner, Kirstin *Counting, palynology *
11Stomata pinaceae *S. pinaceae#Werner, Kirstin *Counting, palynology *
12Salix *Sal#Werner, Kirstin *Counting, palynology *
13Apiaceae *Apiae#Werner, Kirstin *Counting, palynology *
14Artemisia *Art#Werner, Kirstin *Counting, palynology *
15Asteraceae *Astae#Werner, Kirstin *Counting, palynology *
16Brassicaceae *Braae#Werner, Kirstin *Counting, palynology *
17Callitriche *Clt#Werner, Kirstin *Counting, palynology *
18Caryophyllaceae *Cphae#Werner, Kirstin *Counting, palynology *
19Chenopodiaceae *Cheae#Werner, Kirstin *Counting, palynology *
20Cichoriaceae *Cchae#Werner, Kirstin *Counting, palynology *
21Cyperaceae *Cypae#Werner, Kirstin *Counting, palynology *
22Drosera *Dro#Werner, Kirstin *Counting, palynology *
23Ephedra *Eph#Werner, Kirstin *Counting, palynology *
24Epilobium *Epl#Werner, Kirstin *Counting, palynology *
25Ericales *Erl#Werner, Kirstin *Counting, palynology *
26Indeterminata *Indet#Werner, Kirstin *Counting, palynology *
27Lamiaceae *Lamae#Werner, Kirstin *Counting, palynology *
28Linum *Lin#Werner, Kirstin *Counting, palynology *
29Menyanthes trifoliata *Mey.t#Werner, Kirstin *Counting, palynology *
30Myriophyllum *Myo#Werner, Kirstin *Counting, palynology *
31Poaceae *Poaae#Werner, Kirstin *Counting, palynology *
32Polygonum bistorta-type *Pol.b-T#Werner, Kirstin *Counting, palynology *
33Polygonum lapathifolium-type *Pol.l-T#Werner, Kirstin *Counting, palynology *
34Potamogeton *Pot#Werner, Kirstin *Counting, palynology *
35Ranunculaceae *Ranae#Werner, Kirstin *Counting, palynology *
36Rosaceae *Rosae#Werner, Kirstin *Counting, palynology *
37Rumex *Rum#Werner, Kirstin *Counting, palynology *
38Sanguisorba officinalis *San.o#Werner, Kirstin *Counting, palynology *
39Saxifraga *Sax#Werner, Kirstin *Counting, palynology *
40Scrofulariaceae *Scrofu#Werner, Kirstin *Counting, palynology *
41Sparganium *Spa#Werner, Kirstin *Counting, palynology *
42Thalictrum *Tha#Werner, Kirstin *Counting, palynology *
43Urtica *Urt#Werner, Kirstin *Counting, palynology *
44Botrychium *Bot#Werner, Kirstin *Counting, palynology *
45Botrychium lunaria-type *Bot.l-T#Werner, Kirstin *Counting, palynology *
46Equisetum *Equ#Werner, Kirstin *Counting, palynology *
47Huperzia *Hup#Werner, Kirstin *Counting, palynology *
48Lycopodium annotinum *Lyc.a#Werner, Kirstin *Counting, palynology *
49Lycopodium clavatum *Lyc.c#Werner, Kirstin *Counting, palynology *
50Polypodium *Ppd#Werner, Kirstin *Counting, palynology *
51Riccia *Ric#Werner, Kirstin *Counting, palynology *
52Selaginella rupestris *Sel.r#Werner, Kirstin *Counting, palynology *
53Sphagnum *Sph#Werner, Kirstin *Counting, palynology *
54Pinaceae *Pinae#Werner, Kirstin *Counting, palynology *
55Pollen, redeposited *Pollen redep#Werner, Kirstin *Counting, palynology *
56Cosmarium *Coi#Werner, Kirstin *Counting, palynology *
57Pediastrum *Pdi#Werner, Kirstin *Counting, palynology *
58Glomus *Glomus#Werner, Kirstin *Counting, palynology *
59Podospora-type *Pod-T#Werner, Kirstin *Counting, palynology *
60Sordaria *Sor#Werner, Kirstin *Counting, palynology *
61Sporormiella *Sro#Werner, Kirstin *Counting, palynology *
62Bryozoa, statoblast *Statoblast#Werner, Kirstin *Counting, palynology *
63Chironomidae remains *Cha.rem#Werner, Kirstin *Counting, palynology *
64Cladocera *Clad#Werner, Kirstin *Counting, palynology *
65Insect remains *Insect rem#Werner, Kirstin *Counting, palynology *
66Neorhabdocoela *Neorhabdocoela#Werner, Kirstin *Counting, palynology *
67Tardigrada *Tardigrada#Werner, Kirstin *Counting, palynology *M3
68Tardigrada *Tardigrada#Werner, Kirstin *Counting, palynology *M5
69Tardigrada *Tardigrada#Werner, Kirstin *Counting, palynology *M6
70Tardigrada *Tardigrada#Werner, Kirstin *Counting, palynology *unknown
71Zygospore *Zygospore#Werner, Kirstin *Counting, palynology *
72Lycopodium *Lyc#Werner, Kirstin *Counting, palynology *
73Pollen total *Pollen tot#Werner, Kirstin *
74Pollen per unit sediment mass *Pollen/sed#/gWerner, Kirstin *
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Size:
5400 data points

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