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Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Amazonian chemical weathering rate derived from stony meteorite finds at Meridiani Planum on Mars (Forthcoming)
Authors: Schröder, Christian
Bland, Phil
Golombek, Matthew
Ashley, James
Warner, Nicholas
Grant, John
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Issue Date: 2016
Publisher: Springer Nature
Citation: Schröder C, Bland P, Golombek M, Ashley J, Warner N & Grant J Amazonian chemical weathering rate derived from stony meteorite finds at Meridiani Planum on Mars (Forthcoming), Nature Communications.
Abstract: Spacecraft exploring Mars, notably 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 currently ongoing 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.
Type: Journal Article
Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Biological and Environmental Sciences
Curtin University Australia
California Institute of Technology
California Institute of Technology
State University of New York at Geneseo

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