JOURNAL OF MINERALOGY, PETROLOGY AND ECONOMIC GEOLOGY
Online ISSN : 1881-3275
Print ISSN : 0914-9783
ORIGINAL ARTICLES
A coprecipitation experiment on the chalcopyrite disease texture involving Fe-bearing sphalerite
Shoji KOJIMAToshiro NAGASEToru INOUE
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1995 Volume 90 Issue 8 Pages 261-267

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Abstract

Hydrothermal coprecipitation experiments were performed at 350 and 300°C, in order to reproduce the “chalcopyrite disease” texture involving Fe-bearing sphalerite. Sector-zoned chalcopyrite disease textures were obtained in some runs using a hydrothermal transporting method, and this shows that coprecipitation is responsible for formation of the texture in Fe-bearing sphalerite. These chalcopyrite disease textures with compositions similar to the run products occur in Fe-bearing sphalerite ores from the modern seafloor deposits at the Okinawa Trough and North Fiji Basin, suggesting a possibility that the chalcopyrite disease textures in the deposits were caused by the process of coprecipitation in short spans of time.

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© 1995 Japan Association of Mineralogical Sciences
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