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Browsing by Author "LaRiviere, Sarah"

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    Fluid characteristics of a quartz-carbonate vein in the Canadian Rocky Mountains
    (2016) LaRiviere, Sarah; Enggist, Andreas
    Different vein generations can be identified within a hand specimen of a quartz-carbonate vein system from the Rocky Mountains. Textural analysis of thin sections reveals a relative age of the veins. Analyses of calcite minerals of the older vein yield relatively low SrO contents of 0.22 wt% with little variation and relatively low MgO contents of 0.43 wt%. The calcite of a younger vein contain SrO contents ranging from 0.18 to 0.41 wt% and higher MgO contents ranging from 0.58 to 0.64 wt%. Melting temperatures of ice of primary fluid inclusions in calcite range between -3.7 to -4.2°C and -2.1 to -2.7°C for the older and younger vein, respectively.
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    Fluid inclusions of quartz-carbonate veins in the Canadian Rocky Mountains
    (2015) LaRiviere, Sarah; Enggist, Andreas
    Vein systems in crustal rocks record a variety of processes, including fluid migration and extensive mass transfer, and they preserve information about the composition, temperature, and pressure conditions that mitigate rock-fluid interaction during vein formation. This study will attempt to characterize the formational sequence and origin of fluid inclusions observed in several samples extracted from a quartz-carbonate vein system in the Canadian Rocky Mountains, and explore the role of fluid-rock interaction in the formation of these veins. Preliminary observations of thin sections taken from vein samples are detailed conjointly with petrographic images and a brief review of the formation and significance of fluid inclusions in rock-hosted vein systems.