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A 60 000 year Greenland stratigraphic ice core chronology

A Svensson, K. K Andersen, M Bigler, H. B Clausen, D Dahl-Jensen, S. M Davies, S. J Johnsen, R Muscheler, F Parrenin, S. O Rasmussen, R Röthlisberger, I Seierstad, J. P Steffensen, B. M Vinther, Siwan Davies Orcid Logo

Climate of the Past, Volume: 4, Issue: 1, Pages: 47 - 57

Swansea University Author: Siwan Davies Orcid Logo

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DOI (Published version): 10.5194/cp-4-47-2008

Abstract

The Greenland Ice Core Chronology 2005 (GICC05) is a time scale based on annual layer counting of high-resolution records from Greenland ice cores. Whereas the Holocene part of the time scale is based on various records from the DYE-3, the 5 GRIP, and the NorthGRIP ice cores, the glacial part is sol...

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Published in: Climate of the Past
ISSN: 1814-9324
Published: 2008
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URI: https://cronfa.swan.ac.uk/Record/cronfa963
first_indexed 2013-07-23T11:49:53Z
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spelling 2015-09-29T15:42:57.4829300 v2 963 2011-10-01 A 60 000 year Greenland stratigraphic ice core chronology b628382c97124173dd283bf7b83f1eec 0000-0003-0999-7233 Siwan Davies Siwan Davies true false 2011-10-01 BGPS The Greenland Ice Core Chronology 2005 (GICC05) is a time scale based on annual layer counting of high-resolution records from Greenland ice cores. Whereas the Holocene part of the time scale is based on various records from the DYE-3, the 5 GRIP, and the NorthGRIP ice cores, the glacial part is solely based on NorthGRIP records. Here we present an 18 kyr extension of the time scale such that GICC05 continuously covers the past 60 kyr. The new section of the time scale places the onset of Greenland Interstadial 12 (GI-12) at 46.9±1.0 kyr b2k (before year AD 2000), the North Atlantic Ash Zone 2 layer in GI-15 at 55.4±1.2 kyr b2k, and the onset of GI-1710 at 59.4±1.3 kyr b2k. The error estimates are derived from the accumulated number of uncertain annual layers and can be regarded as 1σ uncertainties. In the 40–60 kyr interval the new time scale has a discrepancy with the Meese-Sowers GISP2 time scale of up to 2.4 kyr, whereas GICC05 compares well to the dating of the Hulu Cave record with absolute age differences of less than 800 years throughout the 60 kyr period. The 15 new time scale is generally in close agreement with other independently dated records and reference horizons, such as the Laschamp geomagnetic excursion and the Kleegruben speleothem record from the Austrian Alps, suggesting high accuracy of both event durations and absolute age estimates. Journal Article Climate of the Past 4 1 47 57 1814-9324 31 12 2008 2008-12-31 10.5194/cp-4-47-2008 http://www.clim-past-discuss.net/3/1235/2007/cpd-3-1235-2007.pdf COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University 2015-09-29T15:42:57.4829300 2011-10-01T00:00:00.0000000 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography A Svensson 1 K. K Andersen 2 M Bigler 3 H. B Clausen 4 D Dahl-Jensen 5 S. M Davies 6 S. J Johnsen 7 R Muscheler 8 F Parrenin 9 S. O Rasmussen 10 R Röthlisberger 11 I Seierstad 12 J. P Steffensen 13 B. M Vinther 14 Siwan Davies 0000-0003-0999-7233 15
title A 60 000 year Greenland stratigraphic ice core chronology
spellingShingle A 60 000 year Greenland stratigraphic ice core chronology
Siwan Davies
title_short A 60 000 year Greenland stratigraphic ice core chronology
title_full A 60 000 year Greenland stratigraphic ice core chronology
title_fullStr A 60 000 year Greenland stratigraphic ice core chronology
title_full_unstemmed A 60 000 year Greenland stratigraphic ice core chronology
title_sort A 60 000 year Greenland stratigraphic ice core chronology
author_id_str_mv b628382c97124173dd283bf7b83f1eec
author_id_fullname_str_mv b628382c97124173dd283bf7b83f1eec_***_Siwan Davies
author Siwan Davies
author2 A Svensson
K. K Andersen
M Bigler
H. B Clausen
D Dahl-Jensen
S. M Davies
S. J Johnsen
R Muscheler
F Parrenin
S. O Rasmussen
R Röthlisberger
I Seierstad
J. P Steffensen
B. M Vinther
Siwan Davies
format Journal article
container_title Climate of the Past
container_volume 4
container_issue 1
container_start_page 47
publishDate 2008
institution Swansea University
issn 1814-9324
doi_str_mv 10.5194/cp-4-47-2008
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography
url http://www.clim-past-discuss.net/3/1235/2007/cpd-3-1235-2007.pdf
document_store_str 0
active_str 0
description The Greenland Ice Core Chronology 2005 (GICC05) is a time scale based on annual layer counting of high-resolution records from Greenland ice cores. Whereas the Holocene part of the time scale is based on various records from the DYE-3, the 5 GRIP, and the NorthGRIP ice cores, the glacial part is solely based on NorthGRIP records. Here we present an 18 kyr extension of the time scale such that GICC05 continuously covers the past 60 kyr. The new section of the time scale places the onset of Greenland Interstadial 12 (GI-12) at 46.9±1.0 kyr b2k (before year AD 2000), the North Atlantic Ash Zone 2 layer in GI-15 at 55.4±1.2 kyr b2k, and the onset of GI-1710 at 59.4±1.3 kyr b2k. The error estimates are derived from the accumulated number of uncertain annual layers and can be regarded as 1σ uncertainties. In the 40–60 kyr interval the new time scale has a discrepancy with the Meese-Sowers GISP2 time scale of up to 2.4 kyr, whereas GICC05 compares well to the dating of the Hulu Cave record with absolute age differences of less than 800 years throughout the 60 kyr period. The 15 new time scale is generally in close agreement with other independently dated records and reference horizons, such as the Laschamp geomagnetic excursion and the Kleegruben speleothem record from the Austrian Alps, suggesting high accuracy of both event durations and absolute age estimates.
published_date 2008-12-31T12:04:21Z
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score 11.048149

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