mparison of oxide and sulphide gypsum ore deposits

  • What is mined in Arizona Lowell Institute for Mineral

    Clockwise from left geologist at outcrop of copper oxide ore drill core of copper sulphide ore lead jacket circuit board Arizona is home to valuable deposits of several important metals but copper often takes center stage. Arizona has ten active copper mines which

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  • Oxidation Zone of Mineral Deposits Article about

    The coverings of oxidation products that form under such circumstances at mineral deposits are called mineral caps. So-called gossan which is deposited primarily by bog iron ore is distinguished in the case of sulfide ore deposits for salt and sulfur deposits the "gypsum cap" is distinguished.

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  • Oil shales evaporites and ore depositsNASA/ADS

    The relationships between oil shales evaporites and sedimentary ore deposits can be classified in terms of stratigraphic and geochemical coherence. Oil shale and black shale deposition commonly follows

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  • AN INVESTIGATION OF COPPER RECOVERY FROM A

    Current copper deposits contain significant amounts of secondary non-sulphide minerals and newly discovered deposits are increasingly complex. As a result research into the improvement of sulphide-oxide copper ores processing through the use of mixed collector systems has surged.

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  • Minerals Flashcards Quizlet

    Is the most important source of zinc and it belongs to the sulfide group of minerals. There is a wide range of color for sphalerite (yellow brown black red) resulting from variable iron content. The most diagnostic property is its 6 directions of cleavage. It is a very common mineral in ore deposits commonly associated with galena.

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  • Geology ch. 15 Flashcards Quizlet

    Start studying Geology ch. 15. Learn vocabulary terms and more with flashcards games and other study tools. Search. The location of the origin of many ore deposits are believed to be related to plate tectonic boundaries. t. Sulfide deposits of copper and iron form through seawater circulation at _____ plate boundaries.

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  • pyritic lead zinc sulfide ore flotation

    comparison of oxide and sulphide copper ore deposits. ore concentrator crusher grinding mill and froth flotation comparison of oxide and sulphide copper ore deposits Best results were flotation procedure for an oxide copper ore in the Get Price copper oxide and silica flux to remove iron from gold ore sulfide

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  • pyrite Properties Facts Britannica

    Pyrite a naturally occurring iron disulfide mineral. The name comes from the Greek word pyr fire because pyrite emits sparks when struck by metal. Pyrite is called fool s gold to the novice its color is deceptively similar to that of a gold nugget.

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  • 28. COMPARISON OF THE TAG MOUND AND STOCKWORK

    28. COMPARISON OF THE TAG MOUND AND STOCKWORK COMPLEX WITH CYPRUS-TYPE MASSIVE SULFIDE DEPOSITS 1 Mark D. Hannington 2 Alan G. Galley 2 Peter M. Herzig 3 and Sven Petersen 3 ABSTRACT. Drilling of the active Trans-Atlantic Geotraverse (TAG) deposit indicates that the size of the mound-stockwork complex is approximately 3.9 million t including 2.7 million t of massive

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  • What is Gypsum How Gypsum is Processed M C

    The gypsum in the oxidation zone of sulphide deposits is mainly caused by sulfides. Distribution of Gypsum. The world s largest producer of gypsum is the United States. In the United States gypsum deposits are distributed in 22 states with a total of 69 mines with the largest producing area in Fort Dodge Iowa followed by Canada.

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  • (PDF) Sulfur Ore DepositsResearchGate

    Deposits of sulfur ores can occur as sheet-like lenticular or pocket formations and can be simple or complex (with rock intercalated). Deposits can vary in extent from tens of centimeters to

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  • Surficial weathering of iron sulfide mine tailings under

    Sep 15 2014 · 2. SITE DESCRIPTION. Between 1906 and 1915 the IKMHSS (Dewey-Humboldt Arizona USA) was subject to mining of oxide ores of Au Ag and Cu (Creasey 1952).Extraction began again during World War I to exploit the underlying massive sulfide deposit for base metals including Cu Zn and Pb and smaller amounts of precious metals Au and Ag (Fig. 1).

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  • Surficial weathering of iron sulfide mine tailings under

    Sep 15 2014 · 2. SITE DESCRIPTION. Between 1906 and 1915 the IKMHSS (Dewey-Humboldt Arizona USA) was subject to mining of oxide ores of Au Ag and Cu (Creasey 1952).Extraction began again during World War I to exploit the underlying massive sulfide deposit

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  • What is Gypsum How Gypsum is Processed M C

    The gypsum in the oxidation zone of sulphide deposits is mainly caused by sulfides. Distribution of Gypsum. The world s largest producer of gypsum is the United States. In the United States gypsum deposits are distributed in 22 states with a total of 69 mines with the largest producing area in Fort Dodge Iowa followed by Canada.

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  • Iron oxide copper-gold deposits geology space-time

    Many diverse ore systems are classified together as iron oxide copper-gold (lOCG) deposits based on an empirical definition arising primarily from geochemical features that do not specify tectonic setting geologic environment or sources of ore-forming fluid metals or other ore components. Such deposits have (1) Cu with or without Au as economic metals (2) hydrothermal ore styles and

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  • Oxide Minerals Image Gallery and Descriptions

    Mar 17 2017 · The oxide minerals are compounds of metallic elements plus oxygen with two prominent exceptions ice and quartz. Ice (H 2 O) always gets left out of the mineral books. Quartz (SiO 2) is treated as one of the silicate minerals.Some of them are primary minerals that solidify deep in the Earth in magmas but the most common oxide minerals

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  • Sulphide magma as a source of metals Nature Geoscience

    Jun 27 2010 · Whether the oxidation produced a mixture of oxide mineral and pyrite or oxide mineral alone would have depended on the ambient fO 2 the activity

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  • EXTRA CREDIT (GEOLOGIC RESOURCES)

    Oxide and Hydroxide ores of aluminum were produced by intense tropical weathering in the geological past the largest iron ore deposits are of hydrothermal origin. In an economic sense extraction of groundwater in areas where natural recharge is very slow is similar to mining a nonrenewable resource.

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  • High-Tech Elements in Minerals of Massive Sulfide Deposits

    The inclusions of authigenic mineral such as Pb Ag Au-tellurides Ag and Pb-selenides In Cu Ag Sn Ge-sulfides and Sn-oxide are increased in sizes in the enrichment submarine supergene zones of massive sulfide deposits. In many massive sulfide deposits sulphide nodules have a zonal structure the nucleus of the poikilite pyrite (zone A

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  • Genesis of nonsulfide zinc deposits and their future

    4 A. Nuspl FIG. 2 Models for the genesis of supergene nonsulfide zinc deposits (after Heyl and Bozion 1962 and Hitzman et al. 2003) a. Direct-replacement-deposit generated by zinc oxides and zinc carbonates by replacement of a former sulfide ore body (or zinc silicate ore

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  • copper oxide and silica flux to remove iron from gold ore

    Answer Silica (SiO2) is used in the processes of smelting of copper pyrite (CuFeS2) ore and in conversion of produced copper matte (refined copper sulfide) into a crude metal as a flux (purifying agent). It reacts with solid impurities such as iron oxide and forms a liquid slag with density smaller than the copper matte.

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  • Types of Copper Deposits in the World An Investor s

    There are two distinct types of copper deposits sulfide ore and oxide ore. Currently the most common source of copper ore is the sulfide ore mineral chalcopyrite which accounts for about 50

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  • Sulfide Ore Treatment GoldSilverCopperCobalt

    The Turner-Albright deposit in southwestern Oregon is an example of a massive sulfide ore that contains both base and precious metals (Strickler 1986). Diamond drilling has identified a resource of 3 million tons that grades at 0.05 pct Co 1.46 pct Cu 3.32 pct Zn 3.9 g/t (0.114 oz/st) Au and 15.2 g/t (0.443 oz/st) Ag (Allen 1986).

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  • Sulfide Ore Treatment GoldSilverCopperCobalt

    The Turner-Albright deposit in southwestern Oregon is an example of a massive sulfide ore that contains both base and precious metals (Strickler 1986). Diamond drilling has identified a resource of

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  • The leaching and adsorption behaviour of gold ores

    and seven carbon-in-leach tanks. The effect of processing the oxide and sulphide ores studied was examined and the model shown to satisfactorily describe the extraction of gold from the Telfer oxide ore. A sensitivity analysis of the effect of process changes on this ore was then undertaken where the correct operating response to preg-robbing

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  • 28. COMPARISON OF THE TAG MOUND AND STOCKWORK

    Three main zones of sulfide deposits have been mapped including the actively venting TAG mound and two fossil high-temperature vent fields known as the Mir zone and the Alvin zone (Rona et al. 1993a 1993b). Low-temperature Fe-Mn–oxide deposits occur on top of the east wall between 2300 and 3100 m depth (Rona et al. 1986 Thompson et al

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  • Sulphates and sulphides GeoProperties product

    When sulphide minerals break down to form sulphates the reaction is accompanied by an increase in volume (heave) that may be large enough to cause structural damage. If calcium carbonate is available for example from fossils then gypsum may be formed which can give rise to an eight-fold increase in volume over the original sulphide

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  • Oil shales evaporites and ore depositsNASA/ADS

    The relationships between oil shales evaporites and sedimentary ore deposits can be classified in terms of stratigraphic and geochemical coherence. Oil shale and black shale deposition commonly follows continental red beds and is in turn followed by evaporite deposition. This transgressive-regressive sequence represents an orderly succession of depositional environments in space and time and

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  • GEOLOGY Chapter 15 Flashcards Quizlet

    an ore deposit formed when sulfide ore minerals accumulate at the bottom of a magma chamber massive-sulfide deposit the igneous body resulting from a magmatic deposit that contains a solid mass of sulfide minerals at its base

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  • copper oxide and silica flux to remove iron from gold ore

    Answer Silica (SiO2) is used in the processes of smelting of copper pyrite (CuFeS2) ore and in conversion of produced copper matte (refined copper sulfide) into a crude metal as a flux (purifying agent). It reacts with solid impurities such as iron oxide and forms a liquid slag with density smaller than the copper matte.

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  • Preliminary Model of Porphyry Copper Deposits

    The general attributes of porphyry copper deposits are summarized below. Brief Description In hypogene parts of porphyry copper deposits the copper occurs predominantly in chalcopyrite other important copper ore minerals may include bornite and enargite. Ore minerals occur as disseminations and in stockworks of veins in hydrother-

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  • Sulfate mineral Britannica

    Sulfate mineral any naturally occurring salt of sulfuric acid. About 200 distinct kinds of sulfates are recorded in mineralogical literature but most of them are of rare and local occurrence. Abundant deposits

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  • nefication process for oxide and sulphide copper

    Oxide–sulfide copper ore was sampled from the ore body Cerovo C1 (south deposit) and used in this study. The chemical composition of the ore sample is pre-sented in Table 1. From Table 1 it can be seen that the high copper concentration is in the sample as well as the high copper oxide content while the sulfide copper concentration is lower.

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  • Why the world is demanding more cobalt and why new

    Sep 29 2017 · The most well-known and mined ores are nickel cobalt sulfide copper cobalt sulfide copper cobalt oxide nickel cobalt laterite and cobalt arsenic ores. Cobalt arsenides are processed using a roasting stage followed by a pressure leach. Due to health and environmental issues almost all mines recovering these cobalt ores have been closed down.

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  • GypsumWikipedia

    Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate with the chemical formula CaSO 4 ·2H 2 O. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster blackboard/sidewalk chalk and drywall.A massive fine-grained white or lightly tinted variety of gypsum called alabaster has been used for sculpture by many cultures including

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