Interlaboratory Comparison of Branched GDGT Temperature and pH Proxies Using Soils and Lipid Extracts
Abstract Ratios of glycerol dialkyl glycerol tetraethers (GDGT), which are membrane lipids of bacteria and archaea, are at the base of several paleoenvironmental proxies. They are frequently applied to soils as well as lake‐ and marine sediments to generate records of past temperature and soil pH. T...
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2024-07-01
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| Online Access: | https://doi.org/10.1029/2024GC011583 |
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| author | Cindy De Jonge Francien Peterse Klaas G. J. Nierop Thomas M. Blattmann Marcelo Alexandre Salome Ansanay‐Alex Thomas Austin Mathieu Babin Edouard Bard Thorsten Bauersachs Jerome Blewett Brenna Boehman Isla S. Castañeda Junhui Chen Martina L. G. Conti Sergio Contreras Julia Cordes Nina Davtian Bart vanDongen Bella Duncan Felix J. Elling Valier Galy Shaopeng Gao Jens Hefter Kai‐Uwe Hinrichs Mitchell R. Helling Mariska Hoorweg Ellen Hopmans Juzhi Hou Yongsong Huang Arnaud Huguet Guodong Jia Cornelia Karger Brendan J. Keely Stephanie Kusch Hui Li Jie Liang Julius S. Lipp Weiguo Liu Hongxuan Lu Kai Mangelsdorf Hayley Manners Alfredo Martinez Garcia Guillemette Menot Gesine Mollenhauer B. David A. Naafs Sebastian Naeher Lauren K. O'Connor Ethan M. Pearce Ann Pearson Zhiguo Rao Marta Rodrigo‐Gámiz Chris Rosendahl Frauke Rostek Rui Bao Prasanta Sanyal Florence Schubotz Wesley Scott Rahul Sen Appy Sluijs Rienk Smittenberg Ioana Stefanescu Jia Sun Paul Sutton Jess Tierney Eduardo Tejos Joan Villanueva Huanye Wang Josef Werne Masanobu Yamamoto Huan Yang Aifeng Zhou |
| author_facet | Cindy De Jonge Francien Peterse Klaas G. J. Nierop Thomas M. Blattmann Marcelo Alexandre Salome Ansanay‐Alex Thomas Austin Mathieu Babin Edouard Bard Thorsten Bauersachs Jerome Blewett Brenna Boehman Isla S. Castañeda Junhui Chen Martina L. G. Conti Sergio Contreras Julia Cordes Nina Davtian Bart vanDongen Bella Duncan Felix J. Elling Valier Galy Shaopeng Gao Jens Hefter Kai‐Uwe Hinrichs Mitchell R. Helling Mariska Hoorweg Ellen Hopmans Juzhi Hou Yongsong Huang Arnaud Huguet Guodong Jia Cornelia Karger Brendan J. Keely Stephanie Kusch Hui Li Jie Liang Julius S. Lipp Weiguo Liu Hongxuan Lu Kai Mangelsdorf Hayley Manners Alfredo Martinez Garcia Guillemette Menot Gesine Mollenhauer B. David A. Naafs Sebastian Naeher Lauren K. O'Connor Ethan M. Pearce Ann Pearson Zhiguo Rao Marta Rodrigo‐Gámiz Chris Rosendahl Frauke Rostek Rui Bao Prasanta Sanyal Florence Schubotz Wesley Scott Rahul Sen Appy Sluijs Rienk Smittenberg Ioana Stefanescu Jia Sun Paul Sutton Jess Tierney Eduardo Tejos Joan Villanueva Huanye Wang Josef Werne Masanobu Yamamoto Huan Yang Aifeng Zhou |
| author_sort | Cindy De Jonge |
| collection | DOAJ |
| description | Abstract Ratios of glycerol dialkyl glycerol tetraethers (GDGT), which are membrane lipids of bacteria and archaea, are at the base of several paleoenvironmental proxies. They are frequently applied to soils as well as lake‐ and marine sediments to generate records of past temperature and soil pH. To derive meaningful environmental information from these reconstructions, high analytical reproducibility is required. Based on submitted results by 39 laboratories from across the world, which employ a diverse range of analytical and quantification methods, we explored the reproducibility of brGDGT‐based proxies (MBT′5ME, IR, and #ringstetra) measured on four soil samples and four soil lipid extracts. Correct identification and integration of 5‐ and 6‐methyl brGDGTs is a prerequisite for the robust calculation of proxy values, but this can be challenging as indicated by the large inter‐interlaboratory variation. The exclusion of statistical outliers improves the reproducibility, where the remaining uncertainty translates into a temperature offset from median proxy values of 0.3–0.9°C and a pH offset of 0.05–0.3. There is no apparent systematic impact of the extraction method and sample preparation steps on the brGDGT ratios. Although reported GDGT concentrations are generally consistent within laboratories, they vary greatly between laboratories. This large variability in brGDGT quantification may relate to variations in ionization efficiency or specific mass spectrometer settings possibly impacting the response of brGDGTs masses relative to that of the internal standard used. While ratio values of GDGT are generally comparable, quantities can currently not be compared between laboratories. |
| format | Article |
| id | doaj-art-587be2a71e1b4e3fbbdf758ac4016432 |
| institution | DOAJ |
| issn | 1525-2027 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geochemistry, Geophysics, Geosystems |
| spelling | doaj-art-587be2a71e1b4e3fbbdf758ac40164322025-08-20T03:10:10ZengWileyGeochemistry, Geophysics, Geosystems1525-20272024-07-01257n/an/a10.1029/2024GC011583Interlaboratory Comparison of Branched GDGT Temperature and pH Proxies Using Soils and Lipid ExtractsCindy De Jonge0Francien Peterse1Klaas G. J. Nierop2Thomas M. Blattmann3Marcelo Alexandre4Salome Ansanay‐Alex5Thomas Austin6Mathieu Babin7Edouard Bard8Thorsten Bauersachs9Jerome Blewett10Brenna Boehman11Isla S. Castañeda12Junhui Chen13Martina L. G. Conti14Sergio Contreras15Julia Cordes16Nina Davtian17Bart vanDongen18Bella Duncan19Felix J. Elling20Valier Galy21Shaopeng Gao22Jens Hefter23Kai‐Uwe Hinrichs24Mitchell R. Helling25Mariska Hoorweg26Ellen Hopmans27Juzhi Hou28Yongsong Huang29Arnaud Huguet30Guodong Jia31Cornelia Karger32Brendan J. Keely33Stephanie Kusch34Hui Li35Jie Liang36Julius S. Lipp37Weiguo Liu38Hongxuan Lu39Kai Mangelsdorf40Hayley Manners41Alfredo Martinez Garcia42Guillemette Menot43Gesine Mollenhauer44B. David A. Naafs45Sebastian Naeher46Lauren K. O'Connor47Ethan M. Pearce48Ann Pearson49Zhiguo Rao50Marta Rodrigo‐Gámiz51Chris Rosendahl52Frauke Rostek53Rui Bao54Prasanta Sanyal55Florence Schubotz56Wesley Scott57Rahul Sen58Appy Sluijs59Rienk Smittenberg60Ioana Stefanescu61Jia Sun62Paul Sutton63Jess Tierney64Eduardo Tejos65Joan Villanueva66Huanye Wang67Josef Werne68Masanobu Yamamoto69Huan Yang70Aifeng Zhou71Geological Institute ETH Zürich Zurich SwitzerlandDepartment of Earth Sciences Utrecht University Utrecht The NetherlandsDepartment of Earth Sciences Utrecht University Utrecht The NetherlandsGeological Institute ETH Zürich Zurich SwitzerlandDepartment of Earth and Planetary Science Brown University Providence RI USAENS de Lyon CNRS Univ Lyon 1 UMR 5276 LGL‐TPE Lyon FranceGNS Science Lower Hutt New ZealandISMER—Institute of Marine Sciences University of Quebec Rimouski Rimouski QC CanadaCollège de France CEREGE Aix‐Marseille University CNRS IRD INRAE Aix‐en‐Provence FranceInstitute of Geosciences Kiel University Kiel GermanyDepartment of Earth and Planetary Sciences Harvard University Cambridge MA USAWoods Hole Oceanographic Institution Woods Hole MA USADepartment of Earth, Geographic and Climate Sciences University of Massachusetts Amherst Amherst MA USAKey Laboratory of Marine Eco‐Environmental Science and Technology Marine Bioresource and Environment Research Center The First Institute of Oceanography Ministry of Natural Resources Qingdao ChinaDepartment of Chemistry University of York York UKUniversidad Católica de la Santísima Concepción Concepción ChileMARUM University of Bremen Bremen GermanyInstitut de Ciència i Tecnologia Ambientals Universitat Autònoma de Barcelona (ICTA‐UAB) Catalonia SpainDepartment of Earth and Environmental Sciences University of Manchester Manchester UKAntarctic Research Centre Victoria University of Wellington Wellington New ZealandLeibniz Laboratory for Radiometric Dating and Isotope Research Kiel University Kiel GermanyWoods Hole Oceanographic Institution Woods Hole MA USAInstitute of Tibetan Plateau Research Chinese Academy of Sciences Beijing ChinaAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research Bremerhaven GermanyMARUM University of Bremen Bremen GermanyDepartment of Chemistry University of Wyoming Laramie WY USADepartment of Earth Sciences Utrecht University Utrecht The NetherlandsNetherlands Institute of Sea Research (NIOZ) 't Horntje The NetherlandsInstitute of Tibetan Plateau Research Chinese Academy of Sciences Beijing ChinaDepartment of Earth and Planetary Science Brown University Providence RI USASorbonne Université CNRS EPHE PSL UMR METIS Paris FranceState Key Laboratory of Marine Geology Tongji University Shanghai ChinaGFZ German Research Centre for Geosciences Potsdam GermanyDepartment of Chemistry University of York York UKISMER—Institute of Marine Sciences University of Quebec Rimouski Rimouski QC CanadaState Key Laboratory of Marine Geology Tongji University Shanghai ChinaInstitute of Tibetan Plateau Research Chinese Academy of Sciences Beijing ChinaMARUM University of Bremen Bremen GermanyState Key Laboratory of Loess and Quaternary Geology Institute of Earth Environment Chinese Academy of Sciences Xi'an ChinaState Key Laboratory of Loess and Quaternary Geology Institute of Earth Environment Chinese Academy of Sciences Xi'an ChinaGFZ German Research Centre for Geosciences Potsdam GermanyUniversity of Plymouth Plymouth UKMax Planck Institute for Chemistry Mainz GermanyENS de Lyon CNRS Univ Lyon 1 UMR 5276 LGL‐TPE Lyon FranceAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research Bremerhaven GermanySchool of Chemistry University of Bristol Bristol UKGNS Science Lower Hutt New ZealandDepartment of Earth and Environmental Sciences University of Manchester Manchester UKDepartment of Chemistry University of York York UKDepartment of Earth and Planetary Sciences Harvard University Cambridge MA USAKey Laboratory of Ecological and Environmental Change in Subtropical Zone College of Geographic Science Hunan Normal University Changsha ChinaDepartment of Stratigraphy and Paleontology University of Granada Granada SpainLeibniz Laboratory for Radiometric Dating and Isotope Research Kiel University Kiel GermanyCollège de France CEREGE Aix‐Marseille University CNRS IRD INRAE Aix‐en‐Provence FranceFrontiers Science Center for Deep Ocean Multispheres and Earth System Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education Institute for Advanced Ocean Studies Ocean University of China Qingdao ChinaIndian Institute of Science Education and Research (IISER) Kolkata Mohanpur IndiaMARUM University of Bremen Bremen GermanyDepartment of Geology and Environmental Sciences University of Pittsburgh Pittsburgh PA USAIndian Institute of Science Education and Research (IISER) Kolkata Mohanpur IndiaDepartment of Earth Sciences Utrecht University Utrecht The NetherlandsDepartment of Geological Sciences Stockholm University Stockholm SwedenDepartment of Geology and Geophysics University of Wyoming Laramie WY USASchool of Chemistry University of Bristol Bristol UKUniversity of Plymouth Plymouth UKDepartment of Geosciences University of Arizona Tucson AZ USAUniversidad Católica de la Santísima Concepción Concepción ChileInstitut de Ciència i Tecnologia Ambientals Universitat Autònoma de Barcelona (ICTA‐UAB) Catalonia SpainState Key Laboratory of Loess and Quaternary Geology Institute of Earth Environment Chinese Academy of Sciences Xi'an ChinaDepartment of Geological Sciences Stockholm University Stockholm SwedenDepartment of Earth System Science Hokkaido University Sapporo JapanSchool of Geography and Information Engineering China University of Geosciences Wuhan ChinaMOE Key Laboratory of Western China's Environmental Systems Collaborative Innovation Centre for Arid Environments and Climate Change Lanzhou University Lanzhou ChinaAbstract Ratios of glycerol dialkyl glycerol tetraethers (GDGT), which are membrane lipids of bacteria and archaea, are at the base of several paleoenvironmental proxies. They are frequently applied to soils as well as lake‐ and marine sediments to generate records of past temperature and soil pH. To derive meaningful environmental information from these reconstructions, high analytical reproducibility is required. Based on submitted results by 39 laboratories from across the world, which employ a diverse range of analytical and quantification methods, we explored the reproducibility of brGDGT‐based proxies (MBT′5ME, IR, and #ringstetra) measured on four soil samples and four soil lipid extracts. Correct identification and integration of 5‐ and 6‐methyl brGDGTs is a prerequisite for the robust calculation of proxy values, but this can be challenging as indicated by the large inter‐interlaboratory variation. The exclusion of statistical outliers improves the reproducibility, where the remaining uncertainty translates into a temperature offset from median proxy values of 0.3–0.9°C and a pH offset of 0.05–0.3. There is no apparent systematic impact of the extraction method and sample preparation steps on the brGDGT ratios. Although reported GDGT concentrations are generally consistent within laboratories, they vary greatly between laboratories. This large variability in brGDGT quantification may relate to variations in ionization efficiency or specific mass spectrometer settings possibly impacting the response of brGDGTs masses relative to that of the internal standard used. While ratio values of GDGT are generally comparable, quantities can currently not be compared between laboratories.https://doi.org/10.1029/2024GC011583round robinGDGTinterlaboratory comparison |
| spellingShingle | Cindy De Jonge Francien Peterse Klaas G. J. Nierop Thomas M. Blattmann Marcelo Alexandre Salome Ansanay‐Alex Thomas Austin Mathieu Babin Edouard Bard Thorsten Bauersachs Jerome Blewett Brenna Boehman Isla S. Castañeda Junhui Chen Martina L. G. Conti Sergio Contreras Julia Cordes Nina Davtian Bart vanDongen Bella Duncan Felix J. Elling Valier Galy Shaopeng Gao Jens Hefter Kai‐Uwe Hinrichs Mitchell R. Helling Mariska Hoorweg Ellen Hopmans Juzhi Hou Yongsong Huang Arnaud Huguet Guodong Jia Cornelia Karger Brendan J. Keely Stephanie Kusch Hui Li Jie Liang Julius S. Lipp Weiguo Liu Hongxuan Lu Kai Mangelsdorf Hayley Manners Alfredo Martinez Garcia Guillemette Menot Gesine Mollenhauer B. David A. Naafs Sebastian Naeher Lauren K. O'Connor Ethan M. Pearce Ann Pearson Zhiguo Rao Marta Rodrigo‐Gámiz Chris Rosendahl Frauke Rostek Rui Bao Prasanta Sanyal Florence Schubotz Wesley Scott Rahul Sen Appy Sluijs Rienk Smittenberg Ioana Stefanescu Jia Sun Paul Sutton Jess Tierney Eduardo Tejos Joan Villanueva Huanye Wang Josef Werne Masanobu Yamamoto Huan Yang Aifeng Zhou Interlaboratory Comparison of Branched GDGT Temperature and pH Proxies Using Soils and Lipid Extracts Geochemistry, Geophysics, Geosystems round robin GDGT interlaboratory comparison |
| title | Interlaboratory Comparison of Branched GDGT Temperature and pH Proxies Using Soils and Lipid Extracts |
| title_full | Interlaboratory Comparison of Branched GDGT Temperature and pH Proxies Using Soils and Lipid Extracts |
| title_fullStr | Interlaboratory Comparison of Branched GDGT Temperature and pH Proxies Using Soils and Lipid Extracts |
| title_full_unstemmed | Interlaboratory Comparison of Branched GDGT Temperature and pH Proxies Using Soils and Lipid Extracts |
| title_short | Interlaboratory Comparison of Branched GDGT Temperature and pH Proxies Using Soils and Lipid Extracts |
| title_sort | interlaboratory comparison of branched gdgt temperature and ph proxies using soils and lipid extracts |
| topic | round robin GDGT interlaboratory comparison |
| url | https://doi.org/10.1029/2024GC011583 |
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