magmatic iron deposit

Mineral deposit Iron deposits | Britannica

Mineral deposit Mineral deposit Iron deposits: By far the most important metal from an economic and technical point of view is iron. Sedimentary iron deposits, from which almost all iron is obtained, can therefore be viewed as one of the world’s great mineral treasures. There are two major types of deposit. The first, and by far the most important, is banded iron formations (BIFs), so

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A Deposit Model for Magmatic Iron-Titanium-Oxide Deposits

A Deposit Model for Magmatic Iron-Titanium-Oxide Deposits Related to Proterozoic Massif Anorthosite Plutonic Suites. By Laurel G. Woodruff, Suzanne W. Nicholson, and David L. Fey. Scientific Investigations Report 2013–5091. U.S. Department of the Interior U.S. Geological Survey

Magmatic Deposits | Article about Magmatic Deposits by The

Much less frequently magmatic deposits may occur in the form of flows that issue from volcanic vents (for example, volcanic sulfur flows). The most important beds in magmatic deposits are those of iron, titanium, vanadium, chromium, platinum, copper, nickel, cobalt, apatite, diamonds, niobium-tantalum, zirconium, and hafnium.

Magmatic Ore Deposits | Magma | Rock (Geology) | Free 30

Magmatic ore deposits are those which are formed during crystallization of a magma, deep underground. The host rock for the mineralization can range from ultramafic to felsic. The deposit can consist of massive ores in some cases, a nd disseminations of rare minerals in others.

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Triple oxygen isotope variations in magnetite from iron

The available iron isotope data for magnetite from the deposits in the Yazd and Sirjan areas (δ 56 Fe = 0.2‰–0.5‰) indicate a high-temperature magmatic (e.g., ≥800 °C) rather than a low-temperature hydrothermal origin for the magnetite (Troll et al., 2019; Alibabaie et al., 2019, personal commun.). We therefore propose two geological

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Review of magmatic iron-ore mineralization in central

Jan 01, 2020· Magmatic mineralization. The skarn deposits are typically known for their variety of ore and alteration minerals within the exo- and endo-contact. In the Las Truchas district, Fe deposits are present in three different types of skarn viz., calcic, magnesian and sodium–chlorine Fe skarns. Most iron deposits are located in the surroundings

Tin stable isotopes in magmatic-affected coal deposits

Tin (Sn) could be used as a proxy for magmatic intrusion in coal deposit. Sn is a redox-sensitive element with two main oxidized states Sn (II) and Sn (IV) and able to behave as a chalcophile or lithophile element in magmatic intruded coal deposits (Qu et al., 2016; Teng et al., 2017; Wang et al., 2018; Witt-Eickschen et al., 2009).

Kambalda type komatiitic nickel ore deposits Wikipedia

Kambalda type komatiitic nickel ore deposits are a class of magmatic iron-nickel-copper-platinum-group element ore deposit in which the physical processes of komatiite volcanology serve to deposit, concentrate and enrich a Fe-Ni-Cu-(PGE) sulfide melt within the lava flow environment of an erupting komatiite volcano

Magmatic origin of giant ‘Kiruna-type’ apatite-iron-oxide

Apr 10, 2013· These include direct magmatic segregation or crystallization, magmatic hydrothermal replacement and hydrothermal precipitation in the sense of iron-oxide-copper-gold (IOCG-type) deposits

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Magmatic Ore Deposits in Layered Intrusions—Descriptive

(figs. 1 and 2). These deposits are mined primarily for their platinum, palladium, and rhodium contents (table 1). Magmatic ore deposits are derived from accumulations of crystals of metallic oxides, or immiscible sulfide, or oxide liquids that formed during the cooling and crystallization of magma, typically with mafic to ultramafic compositions.

Triple oxygen isotope variations in magnetite from iron

The formation of iron-oxide–apatite (IOA) deposits is much debated. Studies on the origin of IOA deposits have often focused on the δ 18 O values of magnetite, which were suggested to reflect isotopic equilibrium with magmas or with magmatic water; i.e., H 2 O in equilibrium with magma (e.g., Jami et al., 2007; Nyström et al., 2008; Knipping et al., 2015; Bilenker et al., 2016; Johnson et

Mineral deposit Magmatic cumulates | Britannica

Mineral deposit Mineral deposit Magmatic cumulates: Magmatic segregation is a general term referring to any process by which one or more minerals become locally concentrated (segregated) during the cooling and crystallization of a magma. Rocks formed as a result of magmatic segregation are called magmatic cumulates. While a magma may start as a homogeneous liquid, magmatic segregation

Review of magmatic iron-ore mineralization in central

Jan 01, 2020· Magmatic mineralization. The skarn deposits are typically known for their variety of ore and alteration minerals within the exo- and endo-contact. In the Las Truchas district, Fe deposits are present in three different types of skarn viz., calcic, magnesian and sodium–chlorine Fe skarns. Most iron deposits are located in the surroundings

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Magmatic Ore Deposits Sede Medellin

Magmatic Ore Deposits Magmatic ore deposits are those which are formed during crystallization of a magma, deep underground. The host rock for the mineralization can range from ultramafic to felsic. The deposit can consist of massive ores in some cases, a nd disseminations of rare minerals in others.

The Productora Cu-Au-Mo Deposit, Chile: A Mesozoic

Previous studies at Productora concluded the deposit had strong affinities with the iron oxide copper-gold (IOCG) clan and likened the deposit to Candelaria. Based on new information, we document the deposit geology in detail and propose a new genetic model and alternative classification as a magmatic-hydrothermal breccia complex with closer

Magmatic ore deposits Part 1

Oct 24, 2015· Magmatic ore deposits Part 1 Jesse's Vids. LoadingUnsubscribe from Jesse's Vids? Where are the largest iron ore deposits in India Duration: 4:35. Amit Sengupta 80,488 views.

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Kambalda type komatiitic nickel ore deposits Wikipedia

Kambalda type komatiitic nickel ore deposits are a class of magmatic iron-nickel-copper-platinum-group element ore deposit in which the physical processes of komatiite volcanology serve to deposit, concentrate and enrich a Fe-Ni-Cu-(PGE) sulfide melt within the lava flow environment of an erupting komatiite volcano

Global Fe–O isotope correlation reveals magmatic origin of

Apr 12, 2019· The origin of giant Kiruna-type iron ores has been debated for nearly 100 years. This study employs extensive stable isotope data from Kiruna-type ores worldwide and magmatic

Magmatic origin of giant ‘Kiruna-type’ apatite-iron-oxide

These include direct magmatic segregation or crystallization, magmatic hydrothermal replacement, and hydrothermal precipitation in the sense of iron-oxide-copper-gold (IOCG-type) deposits 9,10,11,12,13,14,15. Here we address the primary question, using oxygen isotopes, whether the GMD iron oxides formed through direct magmatic precipitation

Ore genesis Wikipedia

Iron ores are overwhelmingly derived from ancient sediments known as banded iron formations (BIFs). These sediments are composed of iron oxide minerals deposited on the sea floor. Particular environmental conditions are needed to transport enough iron in sea water to form these deposits, such as acidic and oxygen-poor atmospheres within the Proterozoic Era.

(PDF) Magmatic-hydrothermal processes within an evolving

Iron oxide-copper-gold (IOCG) deposits formed by magmatic-hydrothermal fluids (MH-IOCG) share many similarities with, but have important differences from, porphyry Cu +/- Mo +/- Au (porphyry

20.1 Metal Deposits – Physical Geology

Magmatic Nickel Deposits . A magmatic deposit is one in which the metal concentration takes place primarily at the same time as the formation and emplacement of the magma. Most of the nickel mined in Canada comes from magmatic deposits such as those in Sudbury (Ontario), Thompson (Manitoba) (Figure 20.4), and Voisey’s Bay (Labrador).

Special Issue "Magmatic-Hydrothermal Ore Deposits"

The deposit is forming around a hot spring, which is part of a large active metallogenetic hydrothermal system depositing ore-bearing travertines. The native iron occurs in two shapes: nodules with diameter 0.4 and 0.45 cm, and angular grains with length up to tens of μm.

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Magmatic Ore Deposits

Magmatic Ore Deposits: A number of processes that occur during cooling and crystallization of magmatic bodies can lead to the separation and concentration of minerals. 1-Pegmatites 2-Layered intrusions 3-Kimberlites Examples of Magmatic ore deposits: 1-Chromite deposits 2-Nickel ŒCopper deposits 3-Platinum group metal (PGM) deposits

MAGMATIC DEPOSITS Earth Science

The most important magmatic deposits are restricted to mafia and ultramafic rocks which represent the crystallization products of basaltic or ultramafic liquids. These deposit types include: 1.Chromite Deposits Chromite deposits are the end product of the separation of

20.1 Metal Deposits – Physical Geology – 2nd Edition

A magmatic deposit is one in which the metal concentration takes place primarily at the same time as the formation and emplacement of the magma. Most of the nickel mined in Canada comes from magmatic deposits such as those in Sudbury (Ontario), Thompson (Manitoba) (Figure 20.1.2), and Voisey’s Bay (Labrador).

Magmatic origin of giant ‘Kiruna-type’ apatite-iron-oxide

These include direct magmatic segregation or crystallization, magmatic hydrothermal replacement, and hydrothermal precipitation in the sense of iron-oxide-copper-gold (IOCG-type) deposits 9,10,11,12,13,14,15. Here we address the primary question, using oxygen isotopes, whether the GMD iron oxides formed through direct magmatic precipitation

Suzanne W Nicholson, Ph.D.

A deposit model for magmatic iron-titanium-oxide deposits related to Proterozoic massif anorthosite plutonic suites: Chapter K in Mineral Deposit Models for Resource Assessment This descriptive model for magmatic iron-titanium-oxide (Fe-Ti-oxide) deposits hosted by Proterozoic age massif-type anorthosite and related rock types presents their

Special Issue "Magmatic-Hydrothermal Ore Deposits"

The deposit is forming around a hot spring, which is part of a large active metallogenetic hydrothermal system depositing ore-bearing travertines. The native iron occurs in two shapes: nodules with diameter 0.4 and 0.45 cm, and angular grains with length up to tens of μm.

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Magmatic Ore Deposits

Magmatic Ore Deposits: A number of processes that occur during cooling and crystallization of magmatic bodies can lead to the separation and concentration of minerals. 1-Pegmatites 2-Layered intrusions 3-Kimberlites Examples of Magmatic ore deposits: 1-Chromite deposits 2-Nickel ŒCopper deposits 3-Platinum group metal (PGM) deposits

New Mineral Deposit Models for Gold, Phosphate Rare Earth

A deposit model for magmatic iron-titanium-oxide deposits related to Proterozoic massif anorthosite plutonic suites: Chapter K in Mineral Deposit Models for Resource Assessment This descriptive model for magmatic iron-titanium-oxide (Fe-Ti-oxide) deposits hosted by Proterozoic age massif-type anorthosite and related rock types presents their

Global Fe–O isotope correlation reveals magmatic origin of

Apr 12, 2019· The origin of giant Kiruna-type iron ores has been debated for nearly 100 years. This study employs extensive stable isotope data from Kiruna-type ores worldwide and magmatic

Ruby Deposits: A Review and Geological Classification

Corundum is not uncommon on Earth but the gem varieties of ruby and sapphire are relatively rare. Gem corundum deposits are classified as primary and secondary deposits. Primary deposits contain corundum either in the rocks where it crystallized or as xenocrysts and xenoliths carried by magmas to the Earth’s surface. Classification systems for corundum deposits are based on different

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Iron and Manganese Ore Deposits: Mineralogy, Geochemistry

2. Iron Ore Deposits Iron ore deposits are known to occur in sedimentary, hydrothermal, and magmatic environments, but production today is almost entirely from three types of deposit: deposits related to Precambrian banded iron formations provide about 90% of all iron ore mined, and the remainder is derived from metasomatic skarn and magmatic

EU H2020 Project "IRON_DEPOSITS (The role of volatiles in

The formation of magmatic iron oxide deposit is closely related to the role of volatiles in magmas, especially in low-Ti magmatic systems (Kiruna-type). Volatiles have strong effect on phase equilibria, saturation of Fe-Ti oxides, and liquid immiscibility. They also control the magmatic-hydrothermal transition with implications for the

(PDF) Magmatic-hydrothermal processes within an evolving

Iron oxide-copper-gold (IOCG) deposits formed by magmatic-hydrothermal fluids (MH-IOCG) share many similarities with, but have important differences from, porphyry Cu +/- Mo +/- Au (porphyry

IOCG Iron Oxide Copper Gold Ore Deposits

IOCG Iron Oxide Copper Gold Ore Deposits goes with porphyries as they are also loosely associated with a large felsic intrusions and form at moderate depths, unlike the dominantly tertiary porphyries IOCG’s tend to be much older and are generally protoizoic in age from 1.1 to 1.8 billion years ago.

Mineral Ore Deposits: Meaning, Origin and Types | Geology

ADVERTISEMENTS: In this article we will discuss about:- 1. Introduction to Ore Deposits 2. Origin of Ore Deposits 3. Types. Introduction to Ore Deposits: Minerals form chief source of all the industrial metals and non-metals. The commonly used metals like aluminum, copper, iron, lead, zinc etc. are all manufactured using minerals as raw materials. Similarly []

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