Chemical Industry Questions and Answers – Copper
Explanation: The predominant ore of copper is chalcopyrite (CuFeS 2). Hematite, magnetite and siderite are ores of iron. Hematite, magnetite and siderite are ores of iron. 2.
Magnetite chemistry and implications for the magmatic …
This paper presents new data of magnetite compositions, acquired using LA–ICP–MS analyses coupled with detailed classification and texture investigation from …
Element mobility patterns in magnetite-group IOCG systems: …
This paper documents element mobility patterns from a magnetite-group Iron Oxide Copper–Gold (IOCG) prospect in the Northwest Territories of Canada and explores …
A Continuum from Iron Oxide Copper-Gold to Iron …
A Continuum from Iron Oxide Copper-Gold to Iron Oxide-Apatite Deposits: ... ore ˚uid(s). There are multiple competing hypotheses for the formation of IOA deposits, with models that range ... Trace element concentrations in magnetite systemati-cally increase with depth in both deposits and decrease from core to rim within magnetite grains in ...
Trace element geochemistry of magnetite from the giant …
Magnetite is a common accessory mineral and forms over a wide range of geologic conditions (sedimentary, magmatic or hydrothermal) and can incorporate various trace elements in its cubic spinel structure (Dare et al., 2014, Dupuis and Beaudoin, 2011, Nadoll et al., 2012).In-situ magnetite analysis and comparison between magmatic and hydrothermal magnetite …
Trace element catalyses mineral replacement reactions and …
In some important deposit classes, including iron oxide copper gold (IOCG) and rare earth element (REE) deposits, it is commonly observed that early magnetite is replaced …
The Phalabowra (Palabora) carbonatite-hosted magnetite-copper sulfide
In other words, if the recognised ore-bodies are magmatic-hydrothermal, they must be classified as distal deposits. The magnetite copper-phosphate-rare earth element pipe-like carbonatite-hosted orebody at Loolekop, within the larger Phalabowra Carbonatite Complex, has many features to suggest that it represents an end member of the Olympic Dam ...
(PDF) Trace element fractionation in magnetite as …
Trace element and isotope investigations of the different ore types reveal two major groups of magnetite: Group I, represented by the massive, partly brecciated ores from both deposits, is ...
Geothermometry using minor and trace elements in …
The temperature (T) and oxygen fugacity (fO 2) dependence of minor and trace elements (Mg, Al, Mn, Cr, Ni) in magnetite (Mag) in equilibrium with water-bearing silicate liquids varying in composition from basalt to rhyolite (49–77 wt% SiO 2) is examined in a compilation of experimental data (n = 299) from 700 to 1050 °C, 50–900 MPa and five order of magnitude …
Insight into the Origin of Iron Ore Based on Elemental …
The Bipindi iron ore district is located in the central section of the Nyong Complex at the northwestern margin of the Congo Craton in Southwest Cameroon. This iron district contains numerous iron mineralization hosted by the Mewongo, Bibole, Kouambo, and Zambi banded iron formations (BIFs). These BIFs contain magnetite as the main iron ore mineral …
Iron Ores (Hematite and Magnetite)
An ore is a mineral deposit that contains a metal that can be extracted using existing technological methods. Iron can be extracted from two types of iron ores: Magnetite and hematite. Magnetite is composed of iron in the form of Fe 3 O 4. Hematite is a mineral that contains iron in the form of Fe 2 O 3. The primary distinction between ...
Magnetite chemistry and implications for the magmatic-hydrothermal ore
Although magnetite crystals of a single type may accommodate a wide range of trace elements, general trend among elements in various types of magnetite can still be related to their forming conditions, such as temperature, fO 2, coexisting mineral assemblages, and fluid compositions.In this study, the incorporation of Ti, Si, Al, Ba, Ta, and Sc into magnetite is …
Trace Element Geochemistry of Magnetite from the Fe(‐Cu) …
The trace element contents in magnetite generally vary less than one order of magnitude. The subtle variations of trace element concentrations within a magnetite grain …
Textural and chemical evolution of magnetite from the …
We present detailed textural and compositional data on magnetite from the Paleozoic Shuanglong Fe-Cu deposit to constrain the formation of iron oxides and the evolution of the ore-forming fluids and thus define the genesis of the Fe-Cu ores.
Recent advances in the application of mineral chemistry to …
Dare et al., Nadoll et al. and Pisiak et al. acquired major and trace element analyses of magnetite from a variety of igneous, porphyry and skarn environments. They used element ratios and statistical data exploration to demonstrate how magnetite compositions can effectively discriminate magnetite of diverse origins (e.g. Fig. 8).
Crustal magma oxidation state and endowments in porphyry copper …
Porphyry copper deposits (PCDs) supply the majority of the world's copper (Cu) as well as significant amounts of molybdenum (Mo) and gold (Au). The formation of these deposits is controlled by a variety of geological factors, among which the magmatic oxidation is one of the focuses of current research. This study investigates the redox characteristics of arc magmas …
Hydrothermal alteration and elemental mass balance for the Surda Copper
This paper explores the geological relationships, mineralogical and geochemical characteristics, and quantitative elemental mass balance constraints of the hydrothermal alteration zones within the uraniferous Surda copper deposit in the Singhbhum Shear Zone in eastern India, which is affiliated with an iron oxide–copper–gold system.
Trace elements in magnetite from porphyry Cu–Mo–Au
2.1. Island Copper. Island Copper is a Cu–Mo–Au deposit hosted in a Jurassic (165 Ma) calc-alkaline monzonite stock and rhyodacite dykes that intrude Bonanza Group volcanic rocks of the Wrangellia Terrane (Perelló et al., 1995, Friedman and Nixon, 1995).Skarn and vein-style mineralization is locally prominent. Most ore at Island Copper is associated …
The Geochemistry of Magnetite and Apatite from the El …
Minor and trace element compositions of magnetite in these samples are similar to magnetite from igneous rocks and magmatic-hydrothermal systems. Magnetite grains from deeper zones of the orebodies contain >1 wt % titanium, as well as ilmenite oxyexsolution lamellae and interstitial ilmenite. ... The ore-forming magnetite-fluid suspension would ...
Trace element fractionation in magnetite as a function of Fe …
Magnetite is common in various magmatic and hydrothermal ore deposit types, and its trace element geochemistry has become increasingly used in ore genesis studies and mineral exploration. While fractional crystallization has been shown to influence the chemistry of igneous magnetite, the extent to which this process regulates the trace element ...
Monica Zhang on LinkedIn: we need magnetite with total Fe …
we need magnetite with total Fe more than 54% and FeO more than 15% to qingdao port,china in large qty, if you can supply,pls email me zzzybiz1@recycles
Trace Element Geochemistry of Magnetite and Its
These results provide the first database for geochemically characterized magnetite from different stages of IOCG alteration and illustrate the potential use of magnetite as an …
Calamine and Malachite respectively, are the ores of
Metal Ore Composition Aluminium Bauxite A l O x (O H) (3 − 2 x) Iron Kaonilite(a form of clay),Haematite,Magnetite,Siderite,Iron pyrities A l 2 (O H) 4 S i 2 O 5, F e 2 O 3, F e 2 O 4, F e C O 3, F e S 2 copper Copper pyrites, Malachite, Cuprite,Copper glance C u F e S 2, C u C O 3 C u (O H) 2, C u 2 O, C u 2 S Zinc Zinc blende or Sphalerite ...
Recent advances in the application of mineral …
Porphyry-related copper, gold and molybdenum deposits, and their related epithermal gold, silver ± copper ore zones, continue to be attractive exploration targets for major mining companies, with a notable increase in discoveries …
Magnetite crisis and copper gold mineralization | Request PDF
The physico-chemical conditions of the magmatic evolution estimated from amphibole, biotite, magnetite-ilmenite mineral thermobarometer indicate that the monzonite and porphyritic granite magma ...
The Magnetite-series and Ilmenite-series Granitic Rocks
Opaque minerals of common granitic rocks were studied microscopically. The granitoids were divided into (i) a magnetite-bearing magnetite-series and (ii) a magnetite-free ilmenite-series. Each series has the following characteristic assemblages of accessary minerals: Magnetite-series: Magnetite (0.1-2 vol.%), ilmenite, hematite, pyrite, sphene, epidote, high ferric/ferrous …
Discrimination of deposit types using magnetite …
Of the determined elements in magnetite, S, Si, Na, K, Ca, and Cu were monitored to exclude the analyses from impure magnetite and inclusions of silicate and/or sulfide minerals. ... Magnetite chemistry by LA-ICP-MS records Sulfide fractional crystallization in massive nickel-copper-platinum group element ores from the norilsk-Talnakh Mining ...
Magnetite geochemistry and mineralogy of iron skarn in the …
The trace element composition of primary magnetite from 2 samples of the Newcastle Porphyry provides an important comparison to magnetite from calcic Fe skarn and massive magnetite. For example, the concentrations of Ti, Al, V, Cr, and Ni in porphyry samples average 10,500, 16,500, 3000, 160, and 18 ppm, respectively.
Trace elements in magnetite from porphyry Cu–Mo–Au
In this paper, we expand the study of trace elements in hydrothermal magnetite from porphyry and skarn deposits by examining settings in the Canadian Cordillera, one of …
Machine Learning Prediction of Ore Deposit Genetic Type Using Magnetite
Magnetite geochemistry is crucial for the discrimination of ore deposit genetic type. Traditional two-dimensional discrimination diagrams based on particular data for limited deposits cannot meet the requirements of high-precision classification. The continuous compilation of magnetite geochemical big data and high-precision machine learning …