Fate of silicate minerals in a peat bog

P. C. Bennett; D. I. Siegel; B. M. Hill; P. H. Glaser

doi:10.1130/0091-7613(1991)019<0328:FOSMIA>2.3.CO;2

Fate of silicate minerals in a peat bog

P. C. Bennett, D. I. Siegel, B. M. Hill, P. H. Glaser

Earth and Environmental Sciences-Twin Cities

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Abstract

An investigation of silicate weathering in a Minnesota mire indicates that quartz and aluminosilicates rapidly dissolve in anoxic, organic-rich, neutral-pH environments. The increasing silica concentrations at circum-neutral pH are consistent with a system where silicate solubility is influenced by silica-organic-acid complexes. Silica-organic-acid complexes therefore may be the cause of the almost complete absence of diatoms in decomposed peat and contribute to the formation of silica-depleted underclays commonly found beneath coal. -from Authors

Original language	English (US)
Pages (from-to)	328-331
Number of pages	4
Journal	Geology
Volume	19
Issue number	4
DOIs	https://doi.org/10.1130/0091-7613(1991)019<0328:FOSMIA>2.3.CO;2
State	Published - Jan 1 1991

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N2 - An investigation of silicate weathering in a Minnesota mire indicates that quartz and aluminosilicates rapidly dissolve in anoxic, organic-rich, neutral-pH environments. The increasing silica concentrations at circum-neutral pH are consistent with a system where silicate solubility is influenced by silica-organic-acid complexes. Silica-organic-acid complexes therefore may be the cause of the almost complete absence of diatoms in decomposed peat and contribute to the formation of silica-depleted underclays commonly found beneath coal. -from Authors

AB - An investigation of silicate weathering in a Minnesota mire indicates that quartz and aluminosilicates rapidly dissolve in anoxic, organic-rich, neutral-pH environments. The increasing silica concentrations at circum-neutral pH are consistent with a system where silicate solubility is influenced by silica-organic-acid complexes. Silica-organic-acid complexes therefore may be the cause of the almost complete absence of diatoms in decomposed peat and contribute to the formation of silica-depleted underclays commonly found beneath coal. -from Authors

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Fate of silicate minerals in a peat bog

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