Implications from inclusions in topaz for greisenisation and mineralisation in the Hensbarrow topaz granite, Cornwall, England
Article Abstract:
The composition of natural magmatic fluids that mediate late stage greisening and mineralisation was analyzed based on textural and geochemical studies of the Hensbarrow topaz granite stock in St. Austen, Cornwall, U.K. Analysis of the inclusions in the topaz of the greisens that were collected from the Hensbarrow topaz granite stock indicated the presence of quartz, zinnwaldite, albite and apatite. The topaz from the Hensbarrow stock also exhibited high ore carrying potentials due to the presence of varlamoffite.
Publication Name: Contributions to Mineralogy and Petrology
Subject: Earth sciences
ISSN: 0010-7999
Year: 1997
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Statistical microthermometry of synthetic fluid inclusions in quartz during decompression reequilibration
Article Abstract:
A study was performed to determine the interaction between inclusion statistical microthermometric data and geologic P-T-t history through reequilibration of synthetic fluid exclusions in natural quartz along a decompression P-T path. The samples were studied under microthermometric analysis. Results revealed that fluid inclusions deformed plastically at constant loading rate. There was a weak relationship between size and homogenization temperature observed in inclusions reequilibrated for seven days.
Publication Name: Contributions to Mineralogy and Petrology
Subject: Earth sciences
ISSN: 0010-7999
Year: 1998
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Textural evolution of synthetic fluid inclusions during reequilibration, with applications to tectonic reconstruction
Article Abstract:
A study shows that textures change during reequilibration of synthetic fluid inclusions in natural quartz. The change in reequilibration textures depends on the P-T path of the inclusion process. Information on textural evolution helps in understanding the process of rock formation. The study is conducted on reequilibration of synthetic 10 weight% NaCl-H2O inclusions in natural quartz. The experimental details and analysis of the results are given.
Publication Name: Contributions to Mineralogy and Petrology
Subject: Earth sciences
ISSN: 0010-7999
Year: 1995
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