Stable water isotope data from segregation ice of the Bol'shoy Lyakhovsky Island 1999 ...

Late Quaternary permafrost deposits on Big Lyakhovsky Island (New Siberian Islands, Russian Arctic) were studied with the aim of reconstructing the palaeoclimatic and palaeoenvironmental conditions of northern Siberia. Hydrogen and oxygen stable isotope analyses are presented for six different gener...

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Bibliographic Details
Main Authors: Meyer, Hanno, Schirrmeister, Lutz
Format: Dataset
Language:English
Published: PANGAEA 2017
Subjects:
Event label
Latitude of event
Longitude of event
Number
Sample code/label
ELEVATION
pH
Conductivity, electrolytic
δ Deuterium, water
δ Deuterium, standard deviation
δ Deuterium, standard error
δ18O, water
δ18O, standard deviation
δ18O, standard error
Deuterium excess
Sampling/measurement on land
Multiple investigations
Sampling by hand
RU-Land_1999_Lyakhovsky
AWI Arctic Land Expedition
Permafrost Research AWI_Perma
Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn
Polar Terrestrial Environmental Systems @ AWI AWI_Envi
Ice
New Siberian Islands
permafrost
wedge*
Siberia
Online Access:https://dx.doi.org/10.1594/pangaea.883615
https://doi.pangaea.de/10.1594/PANGAEA.883615
Description
Summary:Late Quaternary permafrost deposits on Big Lyakhovsky Island (New Siberian Islands, Russian Arctic) were studied with the aim of reconstructing the palaeoclimatic and palaeoenvironmental conditions of northern Siberia. Hydrogen and oxygen stable isotope analyses are presented for six different generations of ice wedges as well as for recent ice wedges and precipitation. An age of about 200 ka BP was determined for an autochtonous peat layer in ice-rich deposits by U/Th method, containing the oldest ice wedges ever analysed for hydrogen and oxygen isotopes. The palaeoclimatic reconstruction revealed a period of severe winter temperatures at that time. After a gap in the sedimentation history of several tens of thousands of years, ice-wedge growth was re-initiated around 50 ka BP by a short period of extremely cold winters and rapid sedimentation leading to ice-wedge burial and characteristic ice-soil wedges ('polosatics'). This corresponds to the initial stage for the Late Weichselian Ice Complex, a peculiar ... : Supplement to: Meyer, Hanno; Dereviagin, Alexander Yu; Siegert, Christine; Schirrmeister, Lutz; Hubberten, Hans-Wolfgang (2002): Palaeoclimate reconstruction on Big Lyakhovsky Island, North Siberia - Hydrogen and oxygen isotopes in ice wedges. Permafrost and Periglacial Processes, 13, 91-105 ...

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