Hydrothermal alteration of granitoids associated with little Dungarvon tin deposit, New Brunswick

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Date
1985
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University of New Brunswick
Abstract
The occurrence of cassiterite at the southern end of the Dungarvon Granite is a product of late stage hydrothermal activity. The alteration of the granitoids and country rocks has been studied using thin sections and the x - ray diffractometer. Five alteration products have been recognized: chloritization of biotite , sericitization of plagioclase, illitization of feldspar, carbonitization and epidotization . Use of the alteration products for exploration is limited as alteration is apparent mainly at the microscopic level.
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