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iron ore of volcanic origin

New research supports volcanic origin of Kiruna-type iron ...

The origin of giant apatite-iron oxide ores of the so-called Kiruna-type has been the topic of a long standing debate that has lasted for over 100 years. In a new article, published in Nature Communications, a team of scientists presents new and unambiguous data in favour of a magmatic origin for these important iron ores.

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New research supports volcanic origin of Kiruna-type iron ...

By comparing their data from Kiruna-type iron ores with an extensive set of magnetite samples from volcanic rocks as well as from known low-temperature hydrothermal iron ore deposits, the researchers were able to show that more than 80 % of their magnetite samples from Kiruna-type apatite-iron oxide ores were formed by high-temperature magmatic processes in what must represent volcanic to shallow sub-volcanic settings. The new results constitute an important advance in our understanding of ...

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New research supports volcanic origin of Kiruna-type iron ...

The origin of giant apatite-iron oxide ores of the so-called 'Kiruna-type' has been the topic of a long standing debate that has lasted for over 100 years. In a new article, published in Nature...

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Geology and geochemistry of the submarine volcanism-related ...

Introduction. Volcanic-hosted Fe (unmetamorphosed) deposits, a sub-type of magmatic iron deposits in the classification scheme by Dill (2010), are one of the most important types of Fe deposits in China and host high-grade Fe ores (Li et al., 2012).

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A large part of Swedish iron ore was formed in volcanic ...

The origin and mode of formation of Kiruna-type iron ore have been much debated among researchers for more than 100 years and several very contrasting forms of education have been proposed. To approach a solution, the Uppsala-led research group systematically analyzed the isotopic compounds in the two elements - iron and oxygen - which build up ...

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New research supports volcanic origin of Kiruna-type iron ores

type apatite-iron oxide ores were formed by high-temperature magmatic processes in what must represent volcanic to shallow sub-volcanic settings. The new results constitute an important advance in

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Volcanic Minerals - Volcano World

Aluminum ore, called bauxite, is most commonly formed in deeply weathered rocks. In some locations, deeply weather volcanic rocks, usually basalt, form bauxite deposits. This sample of bauxite ore is from Western Australia. Uses for Aluminum. Aluminum has a wide range of common uses.

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A large part of Swedish iron ore was formed in volcanic ...

The origin and mode of formation of Kiruna-type iron ore have been much debated among researchers for more than 100 years and several very contrasting forms of education have been proposed. To approach a solution, the Uppsala-led research group systematically analyzed the isotopic compounds in the two elements - iron and oxygen - which build up ...

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ResearchGate | Find and share research

Natural History, Box 50007, SE-104 05 Stockholm, Sweden. ... surface in many apatite iron ore provinces of different age, in various ... are two other provinces with volcanic iron ore in Chile: (1 ...

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New research supports volcanic origin of Kiruna-type iron ...

The origin of giant apatite-iron oxide ores of the so-called Kiruna-type has been the topic of a long standing debate that has lasted for over 100 years. In a new article, published in Nature Communications, a team of scientists presents new and unambiguous data in favour of a magmatic origin for these important iron ores.

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History - Iron Ore Heritage Trail

Why Iron Ore Is Here When and How Did Iron Compounds Form? Deposition of iron was followed by a period of intense mountain building. During this period the iron rich sediments were folded and faulted, subjected to heat and pressure, and intruded with volcanic material.

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The Chinese Iron Ore Deposits and Ore Production | IntechOpen

Volcanic intrusive type iron ore deposits. This type of deposit is associated with volcanic rocks and sub-volcanic rocks in a genetic relationship, with a proven reserve of 2 billion tons, accounting for 4% of the countrys total reserves. It would be divided into continental volcano-intrusive iron ore and marine volcano-intrusive iron ...

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The Chinese Iron Ore Deposits and Ore Production | IntechOpen

Volcanic intrusive type iron ore deposits. This type of deposit is associated with volcanic rocks and sub-volcanic rocks in a genetic relationship, with a proven reserve of 2 billion tons, accounting for 4% of the countrys total reserves. It would be divided into continental volcano-intrusive iron ore and marine volcano-intrusive iron ...

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The origin, emplacement, and eruption of ore magmas

Iron-apatite ores formed by the hydrothermal replacement of volcanic rocks may mimic some of the features of ores derived from iron-oxide magmas, but are likely to be of laterally variable composition and thickness with gradational upper and lower boundaries.

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Research: New research supports volcanic origin of Kiruna ...

The origin of giant apatite-iron oxide ores of the so-called Kiruna-type has been the topic of a long standing debate that has lasted for over 100 years. In a new article, published in Nature Communications , a team of scientists presents new and unambiguous data in favour of a magmatic origin for these important iron ores.

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Iron I - Michigan State University

Iron ore was first "discovered" by European settlers when the early land surveyor, William Austin Burt, was shown iron ore by an Indian chieftain near what is now Negaunee, Michigan, in 1844. He had noticed a strange movement of his compass needle while surveying near where the present town of Ishpeming is located.

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Volcanic Origin of the Proterozoic Itabira Iron Formation ...

Theories on the origin of the Itabira iron formation (itabirite) in Quadrilátero Ferrífero (QF), as elsewhere in the world, are restricted by the apparent lack of adjoining volcanic units, severe syndeformational metamorphism and deep weathering. Besides the three types of iron formations at QF (siliceous, dolomitic and amphibolitic; Dorr, 1969) we include a fourth type...

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New research supports volcanic origin of Kiruna-type iron ...

By comparing their data from Kiruna-type iron ores with an extensive set of magnetite samples from volcanic rocks as well as from known low-temperature hydrothermal iron ore deposits, the researchers were able to show that more than 80 % of their magnetite samples from Kiruna-type apatite-iron oxide ores were formed by high-temperature magmatic processes in what must represent volcanic to ...

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Origin of the volcanic-hosted Yamansu Fe deposit, Eastern ...

Günther T, Klemd R, Zhang X, Horn I, Weyer S (2017) In-situ trace element and Fe-isotope studies on magnetite of the volcanic-hosted Zhibo and Chagangnuoer iron ore deposits in the Western Tianshan, NW China. Chem Geol 453:111127. Google Scholar

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History - Iron Ore Heritage Trail

Why Iron Ore Is Here When and How Did Iron Compounds Form? Deposition of iron was followed by a period of intense mountain building. During this period the iron rich sediments were folded and faulted, subjected to heat and pressure, and intruded with volcanic material.

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