A mineralogical and geochemical study of arsenic in alteration products of sulfide-rich, arsenopyrite-bearing mine waste, Snow Lake, Manitoba
- 出版日期：2004.
- 页数：1 v. :
- 第一责任说明：Kristin Andrea Salzsauler.
- 分类号：a484
- ISBN：0612912051(ebk.) :
MARC全文
02h0030013 20120629163501.0 cr un||||||||| 120629s2004 xx ||||f|||d||||||||eng | MQ91205 0612912051(ebk.) : CNY371.35 NGL NGL NGL a484 Salzsauler, Kristin Andrea. A mineralogical and geochemical study of arsenic in alteration products of sulfide-rich, arsenopyrite-bearing mine waste, Snow Lake, Manitoba [electronic resource] / Kristin Andrea Salzsauler. 2004. 1 v. : digital, PDF file. Adviser: Sherriff, Barbara. Thesis (M.Sc.)--University of Manitoba (Canada), 2004. The Snow Lake Arsenopyrite Stockpile is the legacy of inefficient processing of refractory ore at the Nor-Acme Mine, Snow Lake, Manitoba, Canada. Between 1948 and 1959, 250 000 tonnes of cyanide treated, high sulfide refractory ore concentrate were stored in an uncapped waste rock impoundment for future retreatment. Over 40 years of exposure resulted in the development of a supergene alteration profile in the waste. In 2000, the pile was capped by layers of waste rock, clay and silt to prevent water infiltration and the oxidative release of arsenic. The oxidation front is now located approximately 2.3 m below the original surface of the waste, as the waste is preserved from further oxidation by the waste rock cap. The refractory sulfide residue contained up to 55% arsenopyrite, 10% pyrrhotite, and 5% pyrite. Gangue minerals include quartz, feldspar, biotite, amphibole and minor calcite. Arsenic Environmental aspects. Electronic dissertations. aeBook. aCN bNGL http://pqdt.bjzhongke.com.cn/Detail.aspx?pid=JW4gH7Kzyc8%3d NGL Bs1646 rCNY371.35 ; h1 bs1204