Removal of magnesium from interstitial waters in reducing environments-the problem reconsidered

L. Heller-Kallai; I. Rozenson

doi:10.1016/0016-7037(78)90247-8

Removal of magnesium from interstitial waters in reducing environments-the problem reconsidered

L. Heller-Kallai^*, I. Rozenson

^*Corresponding author for this work

Fredy & Nadine Herrmann Institute of Earth Sciences

Research output: Contribution to journal › Article › peer-review

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Abstract

Iron-containing smectites are not affected significantly by Mg-containing dilute sulphide solutions. Concentrated solutions reduce most of the Fe in montmorillonites; Fe is partially extracted from nontronite with concomitant disintegration of the structure. It is concluded that direct Mg → Fe exchange in clays seems improbable, but that depletion of Mg in interstitial waters of anoxic sediments may be due to reaction of Mg-containing solutions with partially disintegrated clay.

Original language	English
Pages (from-to)	1907-1909
Number of pages	3
Journal	Geochimica et Cosmochimica Acta
Volume	42
Issue number	12
DOIs	https://doi.org/10.1016/0016-7037(78)90247-8
State	Published - Dec 1978

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abstract = "Iron-containing smectites are not affected significantly by Mg-containing dilute sulphide solutions. Concentrated solutions reduce most of the Fe in montmorillonites; Fe is partially extracted from nontronite with concomitant disintegration of the structure. It is concluded that direct Mg → Fe exchange in clays seems improbable, but that depletion of Mg in interstitial waters of anoxic sediments may be due to reaction of Mg-containing solutions with partially disintegrated clay.",

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AB - Iron-containing smectites are not affected significantly by Mg-containing dilute sulphide solutions. Concentrated solutions reduce most of the Fe in montmorillonites; Fe is partially extracted from nontronite with concomitant disintegration of the structure. It is concluded that direct Mg → Fe exchange in clays seems improbable, but that depletion of Mg in interstitial waters of anoxic sediments may be due to reaction of Mg-containing solutions with partially disintegrated clay.

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JO - Geochimica et Cosmochimica Acta

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Removal of magnesium from interstitial waters in reducing environments-the problem reconsidered

Abstract

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