Macro- to nanoscale study of the effect of aqueous sulphate on calcite growth
Calcite growth rates were measured in the presence of sulphate using mixed-flow reactors and in situ Atomic Force Microscopy. Preliminary observations reveal that the kinetics and mechanism of the calcite growth was altered by the presence of sulphate. Calcite growth rates in the presence of sulphat...
| Main Authors: | , , , , |
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| Format: | Conference Paper |
| Published: |
2008
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| Online Access: | http://hdl.handle.net/20.500.11937/11291 |
| _version_ | 1848747766511042560 |
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| author | Vavouraki, A. Putnis, Christine Putnis, Andrew Oelkers, E. Koutsoukos, P. |
| author_facet | Vavouraki, A. Putnis, Christine Putnis, Andrew Oelkers, E. Koutsoukos, P. |
| author_sort | Vavouraki, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Calcite growth rates were measured in the presence of sulphate using mixed-flow reactors and in situ Atomic Force Microscopy. Preliminary observations reveal that the kinetics and mechanism of the calcite growth was altered by the presence of sulphate. Calcite growth rates in the presence of sulphate (= 5 mM) were decreased and two-dimensional nuclei tend to grow on top of existing nuclei, rather than spreading. The height of new nuclei was ~4 Å, 1 Å greater than that of pure calcite growth. This difference reflects the incorporation of tetrahedral SO42- anions into the calcite lattice. © 2008 The Mineralogical Society. |
| first_indexed | 2025-11-14T06:54:22Z |
| format | Conference Paper |
| id | curtin-20.500.11937-11291 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:54:22Z |
| publishDate | 2008 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-112912017-09-13T14:56:21Z Macro- to nanoscale study of the effect of aqueous sulphate on calcite growth Vavouraki, A. Putnis, Christine Putnis, Andrew Oelkers, E. Koutsoukos, P. Calcite growth rates were measured in the presence of sulphate using mixed-flow reactors and in situ Atomic Force Microscopy. Preliminary observations reveal that the kinetics and mechanism of the calcite growth was altered by the presence of sulphate. Calcite growth rates in the presence of sulphate (= 5 mM) were decreased and two-dimensional nuclei tend to grow on top of existing nuclei, rather than spreading. The height of new nuclei was ~4 Å, 1 Å greater than that of pure calcite growth. This difference reflects the incorporation of tetrahedral SO42- anions into the calcite lattice. © 2008 The Mineralogical Society. 2008 Conference Paper http://hdl.handle.net/20.500.11937/11291 10.1180/minmag.2008.072.1.141 restricted |
| spellingShingle | Vavouraki, A. Putnis, Christine Putnis, Andrew Oelkers, E. Koutsoukos, P. Macro- to nanoscale study of the effect of aqueous sulphate on calcite growth |
| title | Macro- to nanoscale study of the effect of aqueous sulphate on calcite growth |
| title_full | Macro- to nanoscale study of the effect of aqueous sulphate on calcite growth |
| title_fullStr | Macro- to nanoscale study of the effect of aqueous sulphate on calcite growth |
| title_full_unstemmed | Macro- to nanoscale study of the effect of aqueous sulphate on calcite growth |
| title_short | Macro- to nanoscale study of the effect of aqueous sulphate on calcite growth |
| title_sort | macro- to nanoscale study of the effect of aqueous sulphate on calcite growth |
| url | http://hdl.handle.net/20.500.11937/11291 |