Aluminum extracts in Antarctic paleosols: Proxy data for organic compounds and bacteria and implications for Martian paleosols
International audience Pyrophosphate-extractable Al has been used to establish the presence of organically-complexed compounds in middle latitude and tropical soils and paleosols on Earth. As proxy data used to establish the presence of organic molecules and trace movement within profiles, it has pr...
Published in: | Sedimentary Geology |
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Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2011
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Online Access: | https://insu.hal.science/insu-00680931 https://doi.org/10.1016/j.sedgeo.2011.02.007 |
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ftinsu:oai:HAL:insu-00680931v1 |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
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language |
English |
topic |
Antarctic and Martian paleosols Fe-Al extracts Alp vs. C Organic proxy data [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
spellingShingle |
Antarctic and Martian paleosols Fe-Al extracts Alp vs. C Organic proxy data [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology Mahaney, William C. Hart, Kris M. Dohm, James M. Hancock, Ronald G.V. Costa, Pedro O'Reilly, Shane S. Kelleher, Brian P. Schwartz, Stéphane Lanson, Bruno Aluminum extracts in Antarctic paleosols: Proxy data for organic compounds and bacteria and implications for Martian paleosols |
topic_facet |
Antarctic and Martian paleosols Fe-Al extracts Alp vs. C Organic proxy data [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
description |
International audience Pyrophosphate-extractable Al has been used to establish the presence of organically-complexed compounds in middle latitude and tropical soils and paleosols on Earth. As proxy data used to establish the presence of organic molecules and trace movement within profiles, it has proved an accurate indicator of downward translocation in Spodosols (podzols). Antarctic paleosols, dating from Middle to Early Miocene age (15-20 Ma), are mineralic weathering profiles lacking A and B horizons. These profiles exhibit pavement/Cox/Cz/Cu horizons, largely with sandy silt textures, little clay, and exceedingly low concentrations of organic matter. Recent chemical investigations of 33 soil samples from the New Mountain and Aztec Mountain areas near the Inland Ice, adjacent to the Taylor Glacier, show that pyrophosphate-extractable Al concentrations vary in phase with organic carbon as determined by loss-on-ignition. While Al-extract concentrations in selected samples are low (< 0.15%), increasing values above nil approximately correlate positively with increases in bacterial populations of several common phylum, the extreme high numbers with more advanced biota including fossil Coleoptera. Available data suggest Alp extracts may target samples which may have undergone minor chelation, and which over long periods of time might have a cumulative weathering effect resulting in the accumulation of small concentrations of organic matter. |
author2 |
Quaternary Surveys School of Chemical Sciences Dublin Dublin City University Dublin (DCU) Department of Hydrology and Water Resources (HWR) University of Arizona Department of Medical Physics and Applied Radiation Sciences and Department of Anthropology McMaster University Hamilton, Ontario Departmento de Geologia Universidade de Lisboa = University of Lisbon (ULISBOA) Tectonique reliefs et bassins Institut des Sciences de la Terre (ISTerre) Université Joseph Fourier - Grenoble 1 (UJF)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement IRD : UR219-PRES Université de Grenoble-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement IRD : UR219-PRES Université de Grenoble-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Minéralogie et environnements Funded by Quaternary Surveys, Toronto and the New Zealand Antarctic Programme--KIWI-105. + the Irish Environmental Protection Agency (STRIVE program), the Science Foundation of Ireland (GEOF509) and the Geological Survey of Ireland. |
format |
Article in Journal/Newspaper |
author |
Mahaney, William C. Hart, Kris M. Dohm, James M. Hancock, Ronald G.V. Costa, Pedro O'Reilly, Shane S. Kelleher, Brian P. Schwartz, Stéphane Lanson, Bruno |
author_facet |
Mahaney, William C. Hart, Kris M. Dohm, James M. Hancock, Ronald G.V. Costa, Pedro O'Reilly, Shane S. Kelleher, Brian P. Schwartz, Stéphane Lanson, Bruno |
author_sort |
Mahaney, William C. |
title |
Aluminum extracts in Antarctic paleosols: Proxy data for organic compounds and bacteria and implications for Martian paleosols |
title_short |
Aluminum extracts in Antarctic paleosols: Proxy data for organic compounds and bacteria and implications for Martian paleosols |
title_full |
Aluminum extracts in Antarctic paleosols: Proxy data for organic compounds and bacteria and implications for Martian paleosols |
title_fullStr |
Aluminum extracts in Antarctic paleosols: Proxy data for organic compounds and bacteria and implications for Martian paleosols |
title_full_unstemmed |
Aluminum extracts in Antarctic paleosols: Proxy data for organic compounds and bacteria and implications for Martian paleosols |
title_sort |
aluminum extracts in antarctic paleosols: proxy data for organic compounds and bacteria and implications for martian paleosols |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://insu.hal.science/insu-00680931 https://doi.org/10.1016/j.sedgeo.2011.02.007 |
genre |
Antarc* Antarctic Taylor Glacier |
genre_facet |
Antarc* Antarctic Taylor Glacier |
op_source |
ISSN: 0037-0738 Sedimentary Geology https://insu.hal.science/insu-00680931 Sedimentary Geology, 2011, 237 (1-2), pp.84-94. ⟨10.1016/j.sedgeo.2011.02.007⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.sedgeo.2011.02.007 insu-00680931 https://insu.hal.science/insu-00680931 doi:10.1016/j.sedgeo.2011.02.007 |
op_doi |
https://doi.org/10.1016/j.sedgeo.2011.02.007 |
container_title |
Sedimentary Geology |
container_volume |
237 |
container_issue |
1-2 |
container_start_page |
84 |
op_container_end_page |
94 |
_version_ |
1797572513483456512 |
spelling |
ftinsu:oai:HAL:insu-00680931v1 2024-04-28T08:00:09+00:00 Aluminum extracts in Antarctic paleosols: Proxy data for organic compounds and bacteria and implications for Martian paleosols Mahaney, William C. Hart, Kris M. Dohm, James M. Hancock, Ronald G.V. Costa, Pedro O'Reilly, Shane S. Kelleher, Brian P. Schwartz, Stéphane Lanson, Bruno Quaternary Surveys School of Chemical Sciences Dublin Dublin City University Dublin (DCU) Department of Hydrology and Water Resources (HWR) University of Arizona Department of Medical Physics and Applied Radiation Sciences and Department of Anthropology McMaster University Hamilton, Ontario Departmento de Geologia Universidade de Lisboa = University of Lisbon (ULISBOA) Tectonique reliefs et bassins Institut des Sciences de la Terre (ISTerre) Université Joseph Fourier - Grenoble 1 (UJF)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement IRD : UR219-PRES Université de Grenoble-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement IRD : UR219-PRES Université de Grenoble-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Minéralogie et environnements Funded by Quaternary Surveys, Toronto and the New Zealand Antarctic Programme--KIWI-105. + the Irish Environmental Protection Agency (STRIVE program), the Science Foundation of Ireland (GEOF509) and the Geological Survey of Ireland. 2011-05-15 https://insu.hal.science/insu-00680931 https://doi.org/10.1016/j.sedgeo.2011.02.007 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.sedgeo.2011.02.007 insu-00680931 https://insu.hal.science/insu-00680931 doi:10.1016/j.sedgeo.2011.02.007 ISSN: 0037-0738 Sedimentary Geology https://insu.hal.science/insu-00680931 Sedimentary Geology, 2011, 237 (1-2), pp.84-94. ⟨10.1016/j.sedgeo.2011.02.007⟩ Antarctic and Martian paleosols Fe-Al extracts Alp vs. C Organic proxy data [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology info:eu-repo/semantics/article Journal articles 2011 ftinsu https://doi.org/10.1016/j.sedgeo.2011.02.007 2024-04-05T00:22:56Z International audience Pyrophosphate-extractable Al has been used to establish the presence of organically-complexed compounds in middle latitude and tropical soils and paleosols on Earth. As proxy data used to establish the presence of organic molecules and trace movement within profiles, it has proved an accurate indicator of downward translocation in Spodosols (podzols). Antarctic paleosols, dating from Middle to Early Miocene age (15-20 Ma), are mineralic weathering profiles lacking A and B horizons. These profiles exhibit pavement/Cox/Cz/Cu horizons, largely with sandy silt textures, little clay, and exceedingly low concentrations of organic matter. Recent chemical investigations of 33 soil samples from the New Mountain and Aztec Mountain areas near the Inland Ice, adjacent to the Taylor Glacier, show that pyrophosphate-extractable Al concentrations vary in phase with organic carbon as determined by loss-on-ignition. While Al-extract concentrations in selected samples are low (< 0.15%), increasing values above nil approximately correlate positively with increases in bacterial populations of several common phylum, the extreme high numbers with more advanced biota including fossil Coleoptera. Available data suggest Alp extracts may target samples which may have undergone minor chelation, and which over long periods of time might have a cumulative weathering effect resulting in the accumulation of small concentrations of organic matter. Article in Journal/Newspaper Antarc* Antarctic Taylor Glacier Institut national des sciences de l'Univers: HAL-INSU Sedimentary Geology 237 1-2 84 94 |