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

Earth Science

Uppsala University

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

11 Scopus citations

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	British 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
State	Published - 15 Sep 1988

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title = "Some remarks on the stability of sphene in diagenetic environments",

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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AU - Morad, S.

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N2 - 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.

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

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