Some remarks on the stability of sphene in diagenetic environments

A. A. Aldahan; S. Morad

doi:10.1016/0009-2541(88)90096-4

Some remarks on the stability of sphene in diagenetic environments

A. A. Aldahan, S. Morad

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

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Abstract

Equilibrium diagrams showing the chemical stability of sphene and the assemblage rutile-quartz-calcite in the range 25-300°C and 1-2000 bar were constructed from mineral reactions that likely occur in diagenetic environments. The results reveal that stability of sphene depends on activities of HCO^-₃, Ca²⁺, SiO_2(aq) and H⁺. Given appropriate conditions, sphene is predicted to be stable even in surficial environments.

Original language	English
Pages (from-to)	249-255
Number of pages	7
Journal	Chemical Geology
Volume	70
Issue number	3
DOIs	https://doi.org/10.1016/0009-2541(88)90096-4
Publication status	Published - Sept 15 1988
Externally published	Yes

ASJC Scopus subject areas

Geology
Geochemistry and Petrology

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10.1016/0009-2541(88)90096-4

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abstract = "Equilibrium diagrams showing the chemical stability of sphene and the assemblage rutile-quartz-calcite in the range 25-300°C and 1-2000 bar were constructed from mineral reactions that likely occur in diagenetic environments. The results reveal that stability of sphene depends on activities of HCO-3, Ca2+, SiO2(aq) and H+. Given appropriate conditions, sphene is predicted to be stable even in surficial environments.",

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AB - Equilibrium diagrams showing the chemical stability of sphene and the assemblage rutile-quartz-calcite in the range 25-300°C and 1-2000 bar were constructed from mineral reactions that likely occur in diagenetic environments. The results reveal that stability of sphene depends on activities of HCO-3, Ca2+, SiO2(aq) and H+. Given appropriate conditions, sphene is predicted to be stable even in surficial environments.

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Some remarks on the stability of sphene in diagenetic environments

Abstract

ASJC Scopus subject areas

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