Radiocarbon Dating and Oxygen Isotope Variations in Late Pleistocene Syngenetic Ice-Wedges, Northern Siberia

The occurrence of well-preserved redeposited organic material is the main limitation for radio-carbon dating of syngenetic permafrost sediments. Only radiocarbon dating of (1) auto-chthonous organic remains or (2) a series of non-inverted radiocarbon dates, in the case of allochthonous organic mater...

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Bibliographic Details
Main Authors: Vasil'chuk, Yurij K, Vasil'chuk, Alla Constantinovna
Format: Dataset
Language:English
Published: PANGAEA 2020
Subjects:
Late Pleistocene
northern Eurasia
Oxygen isotopes
radiocarbon dating
syngenetic ice-wedges
Arctic
Ice
permafrost
Permafrost and Periglacial Processes
wedge*
Siberia
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.919810
https://doi.org/10.1594/PANGAEA.919810
Description
Summary:The occurrence of well-preserved redeposited organic material is the main limitation for radio-carbon dating of syngenetic permafrost sediments. Only radiocarbon dating of (1) auto-chthonous organic remains or (2) a series of non-inverted radiocarbon dates, in the case of allochthonous organic material in permafrost thicknesses, is valid. An interpretation of oxygen isotope values from syngenetic ice-wedges is considered in the context of several syngenetic permafrost sequences for northern Eurasia. Radiocarbon dating of organic matter from the host sediments which accumulated synchronously to the ice-wedges provides an age attachment for the oxygen isotope determinations.

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