ground-ice stable isotopes and cryostratigraphy reflect late quaternary palaeoclimate in the northeast siberian arctic (oyogos yar coast, dmitry laptev strait)
Clicks: 217
ID: 227193
2017
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This
article has not been analysed, so there is no overall score —
reader engagement is measured and shown alongside.
Reader Engagement
Emerging Content
30.0
/100
217 views
34 readers
AI Quality Assessment
Not analyzed
Readership in this journal
EmergingRanked #20 of 96 articles by views in proceedings - 16th ieee/acis international conference on computer and information science, icis 2017
Most read
Least read
Bar heights use a square-root scale.
Mint this article as an NFT
Not yet mintedCreate a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.
5
SUSD
one-off · no wallet required
Abstract
To reconstruct palaeoclimate and palaeoenvironmental conditions in the
northeast Siberian Arctic, we studied late Quaternary permafrost at the
Oyogos Yar coast (Dmitry Laptev Strait). New infrared-stimulated luminescence
ages for distinctive floodplain deposits of the Kuchchugui Suite
(112.5 ± 9.6 kyr) and thermokarst-lake deposits of the Krest Yuryakh
Suite (102.4 ± 9.7 kyr), respectively, provide new substantial
geochronological data and shed light on the landscape history of the Dmitry
Laptev Strait region during Marine Isotope Stage (MIS) 5. Ground-ice
stable-isotope data are presented together with cryolithological information
for eight cryostratigraphic units and are complemented by data from nearby
Bol'shoy Lyakhovsky Island. Our combined record of ice-wedge stable isotopes
as a proxy for past winter climate conditions covers about 200 000 years and
is supplemented by stable isotopes of pore and segregated ice which reflect
annual climate conditions overprinted by freezing processes. Our ice-wedge
stable-isotope data indicate substantial variations in northeast Siberian
Arctic winter climate conditions during the late Quaternary, in particular
between glacial and interglacial times but also over the last millennia to
centuries. Stable isotope values of ice complex ice wedges indicate cold to
very cold winter temperatures about 200 kyr ago (MIS7), very cold winter
conditions about 100 kyr ago (MIS5), very cold to moderate winter conditions
between about 60 and 30 kyr ago, and extremely cold winter temperatures
during the Last Glacial Maximum (MIS2). Much warmer winter conditions are
reflected by extensive thermokarst development during MIS5c and by Holocene
ice-wedge stable isotopes. Modern ice-wedge stable isotopes are most enriched
and testify to the recent winter warming in the Arctic. Hence,
ice-wedge-based reconstructions of changes in winter climate conditions add
substantial information to those derived from paleoecological proxies stored
in permafrost and allow a distinction between seasonal trends of past climate
dynamics. Future progress in ice-wedge dating and an improved temporal
resolution of ice-wedge-derived climate information may help to fully explore
the palaeoclimatic potential of ice wedges.
| Reference Key |
opel2017climateground-ice
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | ;T. Opel;T. Opel;S. Wetterich;H. Meyer;A. Y. Dereviagin;M. C. Fuchs;L. Schirrmeister |
| Journal | proceedings - 16th ieee/acis international conference on computer and information science, icis 2017 |
| Year | 2017 |
| DOI |
10.5194/cp-13-587-2017
|
| URL | |
| Keywords |
Citations
No citations found. To add a citation, contact the admin at info@scimatic.org
Comments
No comments yet. Be the first to comment on this article.