High-sensitivity measurement of diverse vascular plant-derived biomarkers in high-altitude ice cores
Author Posting. © American Geophysical Union, 2009. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 36 (2009): L13501, doi:10.1029/2009GL037643. Semi-volatile organi...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/3381 2023-05-15T16:39:12+02:00 High-sensitivity measurement of diverse vascular plant-derived biomarkers in high-altitude ice cores Makou, Matthew C. Thompson, Lonnie G. Montlucon, Daniel B. Eglinton, Timothy I. 2009-07-03 application/postscript application/pdf text/plain https://hdl.handle.net/1912/3381 en_US eng American Geophysical Union https://doi.org/10.1029/2009GL037643 Geophysical Research Letters 36 (2009): L13501 https://hdl.handle.net/1912/3381 doi:10.1029/2009GL037643 Geophysical Research Letters 36 (2009): L13501 doi:10.1029/2009GL037643 Biomass burning Molecular markers Article 2009 ftwhoas https://doi.org/10.1029/2009GL037643 2022-05-28T22:57:55Z Author Posting. © American Geophysical Union, 2009. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 36 (2009): L13501, doi:10.1029/2009GL037643. Semi-volatile organic compounds derived from burned and fresh vascular plant sources and preserved in high-altitude ice fields were detected and identified through use of recently developed analytical tools. Specifically, stir bar sorptive extraction and thermal desorption coupled with gas chromatography/time-of-flight mass spectrometry allowed measurement of multiple biomarkers in small sample volumes (≤30 ml). Among other compounds of interest, several diterpenoids, which suggest inputs from conifers and conifer burning, were identified in post-industrial era and older Holocene ice from the Sajama site in the Bolivian Andes, but not in a glacial period sample, consistent with aridity changes. Differences in biomarker assemblages between sites support the use of these compounds as regionally constrained recorders of vegetation and climate change. This study represents the first application of these analytical techniques to ice core research and the first indication that records of vegetation fires may be reconstructed from diterpenoids in ice. This project was supported in part by NSF-OCE (0402533), and NSF-EAR (0094475). Article in Journal/Newspaper ice core Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Geophysical Research Letters 36 13 |
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Open Polar |
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Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
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ftwhoas |
language |
English |
topic |
Biomass burning Molecular markers |
spellingShingle |
Biomass burning Molecular markers Makou, Matthew C. Thompson, Lonnie G. Montlucon, Daniel B. Eglinton, Timothy I. High-sensitivity measurement of diverse vascular plant-derived biomarkers in high-altitude ice cores |
topic_facet |
Biomass burning Molecular markers |
description |
Author Posting. © American Geophysical Union, 2009. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 36 (2009): L13501, doi:10.1029/2009GL037643. Semi-volatile organic compounds derived from burned and fresh vascular plant sources and preserved in high-altitude ice fields were detected and identified through use of recently developed analytical tools. Specifically, stir bar sorptive extraction and thermal desorption coupled with gas chromatography/time-of-flight mass spectrometry allowed measurement of multiple biomarkers in small sample volumes (≤30 ml). Among other compounds of interest, several diterpenoids, which suggest inputs from conifers and conifer burning, were identified in post-industrial era and older Holocene ice from the Sajama site in the Bolivian Andes, but not in a glacial period sample, consistent with aridity changes. Differences in biomarker assemblages between sites support the use of these compounds as regionally constrained recorders of vegetation and climate change. This study represents the first application of these analytical techniques to ice core research and the first indication that records of vegetation fires may be reconstructed from diterpenoids in ice. This project was supported in part by NSF-OCE (0402533), and NSF-EAR (0094475). |
format |
Article in Journal/Newspaper |
author |
Makou, Matthew C. Thompson, Lonnie G. Montlucon, Daniel B. Eglinton, Timothy I. |
author_facet |
Makou, Matthew C. Thompson, Lonnie G. Montlucon, Daniel B. Eglinton, Timothy I. |
author_sort |
Makou, Matthew C. |
title |
High-sensitivity measurement of diverse vascular plant-derived biomarkers in high-altitude ice cores |
title_short |
High-sensitivity measurement of diverse vascular plant-derived biomarkers in high-altitude ice cores |
title_full |
High-sensitivity measurement of diverse vascular plant-derived biomarkers in high-altitude ice cores |
title_fullStr |
High-sensitivity measurement of diverse vascular plant-derived biomarkers in high-altitude ice cores |
title_full_unstemmed |
High-sensitivity measurement of diverse vascular plant-derived biomarkers in high-altitude ice cores |
title_sort |
high-sensitivity measurement of diverse vascular plant-derived biomarkers in high-altitude ice cores |
publisher |
American Geophysical Union |
publishDate |
2009 |
url |
https://hdl.handle.net/1912/3381 |
genre |
ice core |
genre_facet |
ice core |
op_source |
Geophysical Research Letters 36 (2009): L13501 doi:10.1029/2009GL037643 |
op_relation |
https://doi.org/10.1029/2009GL037643 Geophysical Research Letters 36 (2009): L13501 https://hdl.handle.net/1912/3381 doi:10.1029/2009GL037643 |
op_doi |
https://doi.org/10.1029/2009GL037643 |
container_title |
Geophysical Research Letters |
container_volume |
36 |
container_issue |
13 |
_version_ |
1766029537540308992 |