Climatic and geochemical implications of Archean pedogenic gypsum in the Moodies Group (∼3.2 Ga), Barberton Greenstone Belt, South Africa
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- 作者：Sami Nabhana ; sami.nabhan@fu-berlin.de" class="auth_mail" title="E-mail the corresponding author ; Tim Lubera ; 1 ; tim.luber@postgrad.manchester.ac.uk" class="auth_mail" title="E-mail the corresponding author ; Franziska Schefflerc ; fscheffl@uni-potsdam.de" class="auth_mail" title="E-mail the corresponding author ; Christoph Heubeckb ; christoph.heubeck@uni-jena.de" class="auth_mail" title="E-mail the corresponding author
- 关键词：Barberton Greenstone Belt ; Archean ; Moodies Group ; Evaporites ; Sulfate ; Paleosol
- 刊名：Precambrian Research
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：275
- 期：Complete
- 页码：119-134
- 全文大小：9821 K
文摘
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Sulfates and carbonates precipitated in Archean fluvial sediments.
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Pedogenic gypsum, barite and calcite formed concretions in several Aridisols beds.
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Rapid concretion formation preserved original structures of the paleosol.
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Paleosols formed under semiarid climate but aggressive weathering conditions.
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Moodies concretions may represent the oldest terrestrial evaporites known to date.