allard lake ilmenite magnetic separation

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Magnetization of exsolution intergrowths of hematite and .

Hemo-ilmenite ores from Allard Lake, Quebec, were first studied over 50 years ago. Interest was renewed in these coarsely exsolved oxides, based on the theory of lamellar magnetism as an explanation for the high and stable natural remanent magnetizations (NRMs), 32 to 120 A/m, reported here.

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ECO-FRIENDLY MINING PROPOSAL ILMENITE: TITANIUM .

Exploration of this deposit through means of diamond drilling and surface work has shown at least 125,000,000 tons of ore in a tabular body 3,600 feet long and 3,400 feet wide occupied an area of 134 acres (Hammond Allard Lake [Quebec] ilmenite deposits).

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Chemistry and Mineralogy of Titanium-rich Slags

separation were also investigated. Among other techniques, the magnetic separation was the most efficient, especially when performed on ground titania-rich slags (Gue´guin 1972, 2004a). The separation was based on the following facts. 1) many magnesian and

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(PDF) Reflections on ilmenite roasting and magnetic .

aim is to increase the magnetic susceptibility of ilmenite to allow magnetic separation from ... samples were compared with that from the Izok Lake and Halfmile Lake volcanogenic massive sulfide ...

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Vanadium Resources in Titaniferous Magnetite Deposits

1969; Allard, 1970), or in complex intrusive bodies, such as Taberg, Sweden (Hjelmqvist, 1950), Otanmaki, Finland (Paakkonen, 1956), and Lake Sanford, New York (Gross, 1968). Most of the titaniferous magnetite deposits exposed are in a few are 3

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(PDF) Intense remanence of hematite-ilmenite solid .

Allard Lake, Quebec, Canada contain ferrian ilmenite with exsolved titanohematite lamellae. In both cases, the final exsolved titanohematite has similar Ti content and carries dominant magnetic ...

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NTNU Open: Magnetization of exsolution intergrowths of .

Magnetization of exsolution intergrowths of hematite and ilmenite: Mineral chemistry, phase relations, and magnetic properties of hemo-ilmenite ores with micron- to nanometer-scale lamellae from Allard Lake.

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NTNU Open: Magnetization of exsolution intergrowths of .

Vis enkel innførsel Magnetization of exsolution intergrowths of hematite and ilmenite: Mineral chemistry, phase relations, and magnetic properties of hemo-ilmenite ores with micron- to nanometer-scale lamellae from Allard Lake, Quebec dcntributor.author

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Back to Basics: Allard Lake to Mars - NASA/ADS

Rob Hargraves worked on hemo-ilmenites from the Allard Lake area, Quebec for his Ph.D. thesis in 1959 and returned with great interest to these samples in relation to the concept of lamellar magnetism. Because the hemo-ilmenite ores produce large negative magnetic anomalies that can only be modeled with a significant remanent component, they are good analogs for the newly discovered Martian ...

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ECO-FRIENDLY MINING PROPOSAL ILMENITE: TITANIUM .

Exploration of this deposit through means of diamond drilling and surface work has shown at least 125,000,000 tons of ore in a tabular body 3,600 feet long and 3,400 feet wide occupied an area of 134 acres (Hammond Allard Lake [Quebec] ilmenite deposits).

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Origin of the giant Allard Lake ilmenite ore deposit .

1/6/2010· An ilmenite deposit (50.67°N, 63.67°W) was discovered in June 1946 in the Allard Lake area near a small lake named Lac Tio during the first aeromagnetic survey for ore exploration ( Bourret, 1949 ). It is located 43 km northeast of Havre-Saint-Pierre in Quebec.

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Paleomagnetism of the Allard Lake Anorthosite Suite | .

Hemo-ilmenite ores from Allard Lake, Quebec, were first studied over 50 years ago. Interest was renewed in these coarsely exsolved oxides, based on the theory of lamellar magnetism as an ...

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Lamellar magnetism and exchange bias in billion-year .

1 INTRODUCTION Field studies of amphibolite-facies Mesoproterozoic metamorphic rocks responsible for negative aeromagnetic anomalies in the Modum District, South Norway (McEnroe et al. 2016, hereafter referred to as Paper I), led to discoveries of titanohematite samples with unusual magnetic properties caused by nanoscale ilmenite exsolution lamellae with their related lamellar magnetism.

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PALEOMAGNETISM OF THE ALLARD LAKE .

Analysis of paleomagnetic data on 112 samples of Precambrian anorthosite, norite, pyroxene–syenite and hemo-ilmenite ore from four main localities in the Allard Lake area reveals: (1) A relatively soft magnetic component resides in magnetite, which is of variable ...

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A review of mineral processing of ilmenite by flotation - .

1/10/2020· To date, many technologies, such as gravity separation, magnetic separation, flotation, and electrostatic separation, have been used to upgrade ilmenite-containing ores. In practice, a combination of gravity separation, magnetic separation and flotation is generally used to upgrade low grade ores to commercially accepted products.

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Influence of lattice-preferred orientation with respect to .

New experimental and computational approaches to interpret orientation and intensity of natural remanent magnetization (NRM) carried by lamellar magnetism are applied to historic magnetic measurements on a collection of 82 massive hemo-ilmenite samples from the Allard Lake District in the Grenville Province, Quebec. The anisotropy of magnetic susceptibility (AMS), together with .

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The magnetic properties of ilmenite-haematite .

The magnetic properties of ilmenite-haematite solid solutions have been investigated, the unusually large and pure haemo-ilmenite crystals from the Allard Lake region of Quebec being used. The magnetic component of these crystals is an ilmen-haematite andµ ...

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Magnetization of exsolution intergrowths of hematite .

30/10/2007· [2] The hemo-ilmenite ores from the Allard Lake area, Quebec, have been of interest for their magnetic properties since the 1950s [Hargraves, 1959a; Carmichael, 1961]. Nearly 50 years later, Hargraves' interest was rekindled in these rocks with the discovery of magnetic anomalies on Mars and with the concept of lamellar magnetism [ Robinson et al., 2002, 2004 ].

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(PDF) Origin of the giant Allard Lake ilmenite ore .

Histograms of the ilmenite proportion in the Allard Lake ilmenite deposit ( n = 172,643) compared to that in the Tellnes deposit ( n =94; data from Charlier et al., 2006 ).

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The role of hematite–ilmenite solid solution in the .

29/3/2002· In samples of hemo-ilmenite ore from Allard Lake Carmichael, 1961, Carmichael, 1959, the RM was carried by very fine lamellae of titanohematite (<5 μm) within the ferrian ilmenite host. In these earlier studies with the ferrian ilmenite -rich ore 12N, HCl was used to perform a series of dissolution experiments on slabs of variable thickness.

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Origin of the giant Allard Lake ilmenite ore deposit (Canada) by .

ilmenite only ever reaches higher proportions than 50 wt.% locally in thin layers, while the Allard Lake deposit contains more than 100 Mt of ore with N75 wt.% hemo-ilmenite.

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Paleomagnetism of the Allard Lake Anorthosite Suite | .

Hemo-ilmenite ores from Allard Lake, Quebec, were first studied over 50 years ago. Interest was renewed in these coarsely exsolved oxides, based on the theory of lamellar magnetism as an ...

Get Price

(PDF) Reflections on ilmenite roasting and magnetic .

Oxidative roasting is applied on an industrial scale to beneficiate ilmenite concentrates from South African East Coast heavy minerals deposits - the aim is to increase the magnetic susceptibility...

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The magnetic properties of ilmenite-haematite .

The magnetic properties of ilmenite-haematite solid solutions have been investigated, the unusually large and pure haemo-ilmenite crystals from the Allard Lake region of Quebec being used. The magnetic component of these crystals is an ilmen-haematite andµ ...

Get Price

The Magnetic Properties of Ilmenite-Haematite Crystals

The magnetic properties of ilmenite-haematite solid solutions have been investigated, the unusually large and pure haemo-ilmenite crystals from the Allard Lake region of Quebec being used. The magnetic component of these crystals is an ilmen-haematite and ...

Get Price

Magnetization of exsolution intergrowths of hematite .

30/10/2007· [2] The hemo-ilmenite ores from the Allard Lake area, Quebec, have been of interest for their magnetic properties since the 1950s [Hargraves, 1959a; Carmichael, 1961]. Nearly 50 years later, Hargraves' interest was rekindled in these rocks with the discovery of magnetic anomalies on Mars and with the concept of lamellar magnetism [ Robinson et al., 2002, 2004 ].

Get Price

Paleomagnetism of the Allard Lake Anorthosite Suite | .

Hemo-ilmenite ores from Allard Lake, Quebec, were first studied over 50 years ago. Interest was renewed in these coarsely exsolved oxides, based on the theory of lamellar magnetism as an ...

Get Price

PALEOMAGNETISM OF THE ALLARD LAKE .

Analysis of paleomagnetic data on 112 samples of Precambrian anorthosite, norite, pyroxene–syenite and hemo-ilmenite ore from four main localities in the Allard Lake area reveals: (1) A relatively soft magnetic component resides in magnetite, which is of variable ...

Get Price

The magnetic properties of ilmenite-haematite .

The magnetic properties of ilmenite-haematite solid solutions have been investigated, the unusually large and pure haemo-ilmenite crystals from the Allard Lake region of Quebec being used. The magnetic component of these crystals is an ilmen-haematite andµ ...

Get Price

US3935094A - Magnetic separation of ilmenite - Google .

Purification of ilmenite from chromite impurities by a two step magnetic separation wherein magnetically susceptible chromite is magnetically removed, followed by an oxidizing roasting of the...

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