Amazonian chemical weathering rate derived from stony meteorite finds at Meridiani Planum on Mars
Spacecraft exploring Mars such as the Mars Exploration Rovers Spirit and Opportunity, as well as the Mars Science Laboratory or Curiosity rover, have accumulated evidence for wet and habitable conditions on early Mars more than 3 billion years ago. Current conditions, by contrast, are cold, extremel...
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ftpubmed:oai:pubmedcentral.nih.gov:5114618 2023-05-15T13:31:34+02:00 Amazonian chemical weathering rate derived from stony meteorite finds at Meridiani Planum on Mars Schröder, Christian Bland, Phil A. Golombek, Matthew P. Ashley, James W. Warner, Nicholas H. Grant, John A. 2016-11-11 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5114618/ http://www.ncbi.nlm.nih.gov/pubmed/27834377 https://doi.org/10.1038/ncomms13459 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5114618/ http://www.ncbi.nlm.nih.gov/pubmed/27834377 http://dx.doi.org/10.1038/ncomms13459 Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2016 ftpubmed https://doi.org/10.1038/ncomms13459 2016-12-04T01:24:40Z Spacecraft exploring Mars such as the Mars Exploration Rovers Spirit and Opportunity, as well as the Mars Science Laboratory or Curiosity rover, have accumulated evidence for wet and habitable conditions on early Mars more than 3 billion years ago. Current conditions, by contrast, are cold, extremely arid and seemingly inhospitable. To evaluate exactly how dry today's environment is, it is important to understand the ongoing current weathering processes. Here we present chemical weathering rates determined for Mars. We use the oxidation of iron in stony meteorites investigated by the Mars Exploration Rover Opportunity at Meridiani Planum. Their maximum exposure age is constrained by the formation of Victoria crater and their minimum age by erosion of the meteorites. The chemical weathering rates thus derived are ∼1 to 4 orders of magnitude slower than that of similar meteorites found in Antarctica where the slowest rates are observed on Earth. Text Antarc* Antarctica PubMed Central (PMC) Nature Communications 7 1 |
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Article Schröder, Christian Bland, Phil A. Golombek, Matthew P. Ashley, James W. Warner, Nicholas H. Grant, John A. Amazonian chemical weathering rate derived from stony meteorite finds at Meridiani Planum on Mars |
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Spacecraft exploring Mars such as the Mars Exploration Rovers Spirit and Opportunity, as well as the Mars Science Laboratory or Curiosity rover, have accumulated evidence for wet and habitable conditions on early Mars more than 3 billion years ago. Current conditions, by contrast, are cold, extremely arid and seemingly inhospitable. To evaluate exactly how dry today's environment is, it is important to understand the ongoing current weathering processes. Here we present chemical weathering rates determined for Mars. We use the oxidation of iron in stony meteorites investigated by the Mars Exploration Rover Opportunity at Meridiani Planum. Their maximum exposure age is constrained by the formation of Victoria crater and their minimum age by erosion of the meteorites. The chemical weathering rates thus derived are ∼1 to 4 orders of magnitude slower than that of similar meteorites found in Antarctica where the slowest rates are observed on Earth. |
format |
Text |
author |
Schröder, Christian Bland, Phil A. Golombek, Matthew P. Ashley, James W. Warner, Nicholas H. Grant, John A. |
author_facet |
Schröder, Christian Bland, Phil A. Golombek, Matthew P. Ashley, James W. Warner, Nicholas H. Grant, John A. |
author_sort |
Schröder, Christian |
title |
Amazonian chemical weathering rate derived from stony meteorite finds at Meridiani Planum on Mars |
title_short |
Amazonian chemical weathering rate derived from stony meteorite finds at Meridiani Planum on Mars |
title_full |
Amazonian chemical weathering rate derived from stony meteorite finds at Meridiani Planum on Mars |
title_fullStr |
Amazonian chemical weathering rate derived from stony meteorite finds at Meridiani Planum on Mars |
title_full_unstemmed |
Amazonian chemical weathering rate derived from stony meteorite finds at Meridiani Planum on Mars |
title_sort |
amazonian chemical weathering rate derived from stony meteorite finds at meridiani planum on mars |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5114618/ http://www.ncbi.nlm.nih.gov/pubmed/27834377 https://doi.org/10.1038/ncomms13459 |
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Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5114618/ http://www.ncbi.nlm.nih.gov/pubmed/27834377 http://dx.doi.org/10.1038/ncomms13459 |
op_rights |
Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
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CC-BY |
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https://doi.org/10.1038/ncomms13459 |
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Nature Communications |
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