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.
| Original language | British English |
|---|---|
| Pages (from-to) | 249-255 |
| Number of pages | 7 |
| Journal | Chemical Geology |
| Volume | 70 |
| Issue number | 3 |
| DOIs | |
| State | Published - 15 Sep 1988 |