Skip to Main Content
Skip Nav Destination
GEOREF RECORD

High-PT study of solid solutions in the system ZrO (sub 2) -TiO (sub 2) ; the stability of srilankite

Ulrike Troitzsch and David J. Ellis
High-PT study of solid solutions in the system ZrO (sub 2) -TiO (sub 2) ; the stability of srilankite
European Journal of Mineralogy (August 2004) 16 (4): 577-584

Abstract

The ZrO (sub 2) -TiO (sub 2) phase diagram was studied in experiments between 1200 and 1650 degrees C and 1 atm to 28 kbar, investigating the effect of pressure on the compositions of rutile, zirconia and zirconium titanate [(Zr,Ti) (sub 2) O (sub 4) ] solid solutions. All three phases became more Ti-rich with increasing pressure, in agreement with ionic radii and cell volume. The range of zirconium titanate solid solution, which is limited to X (sub Ti) < 0.58 at room pressure, is extended to X (sub Ti) 0.68 at 1500 degrees C and 28 kbar. Thus (Zr,Ti) (sub 2) O (sub 4 ) and ZrTi (sub 2) O (sub 6) (srilankite) which were previously regarded as the high- and low-temperature forms, respectively, are both stable at high temperatures (< 1200 degrees C) and are part of the same solid solution that is continuous with pressure. Srilankite formed at 1440 degrees C and 28 kbar in equilibrium with rutile. These results are consistent with the natural occurrence of srilankite in high-grade rocks such as eclogites, granulites, lamprophyres and chromitites.


ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 16
Serial Issue: 4
Title: High-PT study of solid solutions in the system ZrO (sub 2) -TiO (sub 2) ; the stability of srilankite
Affiliation: Australian National University, Geology Department, Canberra, A.C.T., Australia
Pages: 577-584
Published: 200408
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 32
Accession Number: 2007-037362
Categories: Igneous and metamorphic petrologyMineralogy of non-silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 200720
Close Modal

or Create an Account

Close Modal
Close Modal