Silica: Role in the Buffering of Natural Waters
Abstract
In the oceans, dissolved silica and degraded silicates appear to participate in a reaction which fixes silica and alkali metal cations and releases hydrogen ions, resulting in maintenance of the p H.
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High dissolved seawater silica and pH are hypothesized to promote reverse weathering and create clay minerals.
“High dissolved seawater silica and pH are hypothesized to promote RW and create clay minerals.”
From The Archean atmosphere (2020) · cites this paper as [176]
Reverse weathering consumes aqueous SiO2 and uses cations to make aluminosilicate clays instead of carbonates that consume carbon, so that CO2 stays in the atmosphere.
“This reaction consumes aqueous SiO2 and uses cations to make aluminosilicate clays instead of carbonates that consume carbon, so that CO2 stays in the atmosphere.”
From The Archean atmosphere (2020) · cites this paper as [176]
Two negative feedbacks potentially control long-term pCO2.
“Potentially, two negative feedbacks control long-term pCO2.”
From The Archean atmosphere (2020) · cites this paper as [176]
Reverse weathering reactions have been proposed.
“Second, “reverse weathering” (RW) reactions have been proposed (176).”
From The Archean atmosphere (2020) · cites this paper as [176]
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- Authors
- Garrels, R. M.
- Affiliations
- Harvard University (US)
- Corresponding author
- Garrels, Robert M.
- Venue
- Science
- Published
- 1965-04-02
- Volume
- 148
- Issue
- 3666
- Pages
- 69-69
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2019637945
- Cited by
- 82
- References
- 3
- Citations by year
- 2025: 2 · 2024: 6 · 2023: 1 · 2022: 2 · 2021: 2 · 2020: 3 · 2019: 3 · 2018: 1 · 2017: 1 · 2016: 1 · 2015: 1
- FWCI
- 19.19
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
- Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Groundwater and Isotope Geochemistry
- Keywords
- silica, dissolved silica, silicate, natural waters, pH buffering, seawater chemistry, alkali metal cations, hydrogen ion release
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