Measuring Quaternary time: A 50‐year perspective
ABSTRACT Over the last 50 years, there have been significant developments in the range and sophistication of the chronological tools now available to Quaternary scientists. Notable milestones include the introduction of new methods (e.g. optically stimulated luminescence, cosmogenic radionuclide dat...
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crwiley:10.1002/jqs.2764 2024-09-15T18:09:49+00:00 Measuring Quaternary time: A 50‐year perspective LOWE, JOHN WALKER, MIKE 2015 http://dx.doi.org/10.1002/jqs.2764 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2764 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2764 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 30, issue 2, page 104-113 ISSN 0267-8179 1099-1417 journal-article 2015 crwiley https://doi.org/10.1002/jqs.2764 2024-08-27T04:27:45Z ABSTRACT Over the last 50 years, there have been significant developments in the range and sophistication of the chronological tools now available to Quaternary scientists. Notable milestones include the introduction of new methods (e.g. optically stimulated luminescence, cosmogenic radionuclide dating, ice‐layer counting, molecular ‘clocks’) and the refinement of established techniques (e.g. accelerator mass spectrometry 14 C dating, 14 C calibration, high‐precision uranium‐series dating, argon–argon dating, cryptotephra analysis). Developing new techniques and methodologies for measuring Quaternary time is not an end in itself, however: it is stimulated by a parallel need, which is a deeper understanding of the mode, pattern and rates of environmental processes, and how different processes inter‐connect. Here we review some of the important limitations that continue to constrain our ability to provide coherent chronologies for Quaternary environmental reconstructions at both millennial and sub‐millennial timescales. We focus our discussion on two unique stratigraphic templates: first, the marine oxygen isotope sequence that spans the full Quaternary period; and, second, the Greenland ice‐core record, which provides a basis for dating environmental changes through the last glacial cycle. Article in Journal/Newspaper Greenland Greenland ice core ice core Wiley Online Library Journal of Quaternary Science 30 2 104 113 |
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Wiley Online Library |
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English |
description |
ABSTRACT Over the last 50 years, there have been significant developments in the range and sophistication of the chronological tools now available to Quaternary scientists. Notable milestones include the introduction of new methods (e.g. optically stimulated luminescence, cosmogenic radionuclide dating, ice‐layer counting, molecular ‘clocks’) and the refinement of established techniques (e.g. accelerator mass spectrometry 14 C dating, 14 C calibration, high‐precision uranium‐series dating, argon–argon dating, cryptotephra analysis). Developing new techniques and methodologies for measuring Quaternary time is not an end in itself, however: it is stimulated by a parallel need, which is a deeper understanding of the mode, pattern and rates of environmental processes, and how different processes inter‐connect. Here we review some of the important limitations that continue to constrain our ability to provide coherent chronologies for Quaternary environmental reconstructions at both millennial and sub‐millennial timescales. We focus our discussion on two unique stratigraphic templates: first, the marine oxygen isotope sequence that spans the full Quaternary period; and, second, the Greenland ice‐core record, which provides a basis for dating environmental changes through the last glacial cycle. |
format |
Article in Journal/Newspaper |
author |
LOWE, JOHN WALKER, MIKE |
spellingShingle |
LOWE, JOHN WALKER, MIKE Measuring Quaternary time: A 50‐year perspective |
author_facet |
LOWE, JOHN WALKER, MIKE |
author_sort |
LOWE, JOHN |
title |
Measuring Quaternary time: A 50‐year perspective |
title_short |
Measuring Quaternary time: A 50‐year perspective |
title_full |
Measuring Quaternary time: A 50‐year perspective |
title_fullStr |
Measuring Quaternary time: A 50‐year perspective |
title_full_unstemmed |
Measuring Quaternary time: A 50‐year perspective |
title_sort |
measuring quaternary time: a 50‐year perspective |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1002/jqs.2764 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2764 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2764 |
genre |
Greenland Greenland ice core ice core |
genre_facet |
Greenland Greenland ice core ice core |
op_source |
Journal of Quaternary Science volume 30, issue 2, page 104-113 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.2764 |
container_title |
Journal of Quaternary Science |
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30 |
container_issue |
2 |
container_start_page |
104 |
op_container_end_page |
113 |
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1810447410083659776 |