Partial melting of sulfide ore deposits

However for many ore deposits the first melting reaction would be at 500c where arsenopyrite and pyrite react to form pyrrhotite and an ass melt the melt forming between 500 and 600c depending on pressure will be enriched in ag as au bi hg sb...

$Zinc cadmium and sulfur isotope fractionation in a$

Zinc cadmium and sulfur isotope fractionation in a

Forty-nine sulfide ores hosted in sandstone from three representive ore blocks jiayashan beichang and nanchang fig 1ce and seven ore-free wallrocks sandstone from the jiayashan block in jinding were collected in this study for s zn and cd isotope anal...

Arsenopyrite melting during metamorphism

Arsenopyrite is present as a minor phase in many different types of ore deposits here we investigate a number of ore deposits metamorphosed to mid-amphibolite facies and above to show that in some environments arsenopyrite is likely to melt during metam...

Mineralogical analysis of nickelcopper polymetallic

Li gs et al phase transformation and element migration in the oxidation process of nickel-copper sulfide ore in characterization of minerals metals and materials 2015 tms 2015 144th annual meeting and exhibition march 15 2015 march 19 2015 2015...

Extensive exploration for metals in sulfide

2013-9-30extensive exploration for metals in sulfide-bearing ore exploration for metals copper nickel platinum and palladium is taking place in lies in minnesota extends from the canadian border and inland along the lake to a point well south of du...

Copper sulfide

2020-5-2copper sulfides describe a family of chemical compounds and minerals with the formula cu x s yboth minerals and synthetic materials comprise these compounds some copper sulfides are economically important ores prominent copper sulfide minerals...

The threat

2020-5-18sulfide-ore copper mining is much more toxic than minnesotas taconite mining it produces giant waste piles that when exposed to air and water leach sulfuric acid heavy metals and sulfates sulfide-ore copper mines pollute groundwater rivers...

Oxidation of sulfide minerals v galena

2007-5-2canadian mineralogist vol 18 pp 365-372 1980 oxidation of sulfide minerals v galena sphalerite and chalcogite hf stegbr eup le desjardins mineral sciences laboratories canada centre lor mineral and energy technology department ol energ...

Nickel sulfide versus laterite the hard sustainability

2009-9-22nickel is commonly present in two principal ore types sulfide or laterite ores sulfide ores are typically derived from volcanic or hydrothermal processes and...

The giant xiarihamu ni

2016-3-16sulfide deposition constrained by magma chamber geometry figures 3c and 6 show that the pinch-and-swell of the m1 orebody depends strongly on the geometry of the ultramafic portion of the xiarihamu intrusion the shapes sulfide contents and ore...

Potential controlled flotation and depression of

This is indeed the case compare data for canadian ore indian ore and cu-mo concentrates 212 processing of complex ores the presence of a plateau in the oxide recovery vs sie potential for the indian ore and possibly for the canadian ore may be attribut...

Mccollum statement on state department response

Mccollum statement on state department response to sulfide-ore copper mining impacts on canadas boundary waters february 20 2020 plans to monitor and mitigate the risk of acid mine drainage originating in the superior national forest polluting can...

A geological model for the thompson ni

Pdf on nov 18 2015 peter c lightfoot and others published a geological model for the thompson ni-co sulfide ore deposits manitoba canada find read and cite all the research you need on...

Pyrosmalite in canadian precambrian sulfide

2011-11-11pool model for ore genesis ind suggests that the precious-metal mineralization commonly associated with these sulfide deposits may have been related to cl-rich fluids keywords pyrosmalite-series minerals fei4n solid solution cl-enrichment c...

Science desk how sulfide

2020-5-5science desk how sulfide-ore copper mines pollute its a good question because in order to understand the environmental impacts to the boundary waters canoe area wilderness and voyageurs national park we must first understand all of the ways sulf...

Syngenetic models for the pyrite and polymetallic

In the low-grade metamorphic cambrian tulghe group of the east carpathians a province of conformable syngenetic massive and disseminated pyrite ore copper pyrite ore and polymetallic pyrite ore is related to a rhyolitic volcanosedimentary formation the...

Sulfide mining

Sulfide mining unfortunately poses several significant environmental risks the most significant one is the threat to water quality when sulfide ores are exposed to air and water the result is sulfuric acid which causes the leaching of potentially to...