Origin of hypergene and technogene minerals in mining technogene systems (a case study of the dalnegorsk Region, Primorye)

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The paper displays results of modeling the physical-chemical parameters of crystallization for hypergene minerals in mine, slurry and drainage waters within mining technogene systems of sulfide-bearing ore deposits of the Dalnegorsk district. The modeling has been carried out with the software package «Selector». Eh and pH parameters were calculated, thermal conditions of the saturation of hypergenic minerals from solutions were determined, and mineral assemblages have been distinguished. It is shown that hypergenic and technogenic minerals crystallize in the wide range of temperatures (from –25º to +40ºC) with significant variations of Eh (from 0.6 to 1.2 V) and pH (0.3—13.7) values. The principal role in the formation of mineral parageneses belongs to the composition of ores and host rocks. The greater is grade of sulfides in tails of processing, the more acid solutions they are producing, and the greater is the number of newly formed secondary minerals.

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作者简介

V. Zvereva

Far East Geological Institute, Far Eastern Branch RAS

编辑信件的主要联系方式.
Email: zvereva@fegi.ru
俄罗斯联邦, Vladivostok

A. Kostina

Far Eastern Federal University

Email: zvereva@fegi.ru
俄罗斯联邦, Vladivostok

A. Lysenko

Far East Geological Institute, Far Eastern Branch RAS

Email: zvereva@fegi.ru
俄罗斯联邦, Vladivostok

参考

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