Geochemistry of organic-rich river waters in Amazonia: Insights on weathering processes of intertropical cratonic terrain
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- 作者：Adriana Maria Coimbra Horbea ; b ; ahorbe@unb.br" class="auth_mail" title="E-mail the corresponding author ; Anderson da Silva Lagesb ; as.lages@hotmail.com" class="auth_mail" title="E-mail the corresponding author ; Jean-Sé ; bastien Moquetc ; d ; js.moquet@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Roberto Ventura Santosa ; Patrick Seylerd ; patrick.seyler@ird.fr" class="auth_mail" title="E-mail the corresponding author ; Gerard Cochonneaue ; gerard.cochonneau@ird.fr" class="auth_mail" title="E-mail the corresponding author
- 关键词：Trace elements ; Sr isotopes ; O and D isotopes ; Weathering rates ; CO2 consumption rate
- 刊名：Applied Geochemistry
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：65
- 期：Complete
- 页码：22-35
- 全文大小：4541 K
文摘
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Were studied rivers flowing the Brazilian craton covered by lateritic soils.
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The river waters are highly diluted and dominated by TAlk, SiO2 and K+.
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There is spatial and temporal variability in the chemical composition.
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The rain amount and recycled water vapor affect the O and D isotopes.
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Geology, weathering, discharge and seasonality highlight a singular composition.