Fluorite as indicator mineral in iron oxide-copper-gold systems: explaining the IOCG deposit diversity

Schlegel, Tobias U.; Wagner, Thomas; Fußwinkel, Tobias

doi:10.1016/j.chemgeo.2020.119674

Cited by 14 publications

(3 citation statements)

References 51 publications

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“…2019) and the variety of fluid origin in iron oxide‐copper‐gold ore deposits revealed by REE signatures in fluorite (Schlegel et al . 2020).…”

Section: Overview Of Icp‐ms Methods For Ree Quantification In Geological Samplesmentioning

confidence: 99%

“…LA-ICP-MS determinations of REEs have already been performed successfully to tackle a range of scientific issues. These include the abundance and fractionation of the REEs in natural minerals and fluid inclusions (Leisen 2011), the genesis of uranium deposits (Mercadier et al 2011, Lach et al 2013, geochronometric dating of rocks and minerals using the radioactive REE isotopes 138 La, 147 Sm and 176 Lu (Sindern 2017), the mineralogy of REEs in coal fly ash (Thompson et al 2018), the partial resetting of U-Th-Pb geochronometers during monazite recrystallisation (Grand '-Homme et al 2018), the adsorption of REEs on aluminium and iron (oxy)-hydroxides in bauxites (Mondillo et al 2019) and the variety of fluid origin in iron oxide-copper-gold ore deposits revealed by REE signatures in fluorite (Schlegel et al 2020).…”

Section: La-icp-ms As a Tool For Express Quantification Of Rees In Solutionsmentioning

confidence: 99%

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Quantitative Measurement of Rare Earth Elements in Brines: Isolation from the Charged Matrix Versus Direct LA‐ICP‐MS Measurements – A Comparative Study

Kokh

Luais

Truche

et al. 2021

Geostandard Geoanalytic Res

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The quantification of the rare earth elements (REEs) in natural rocks and fluids is important not only for the sustainable use of geological resources but also for fundamental geological research. Due to significant improvements in experimental, modelling and analytical techniques, it was discovered that the REEs could be efficiently mobilised and transported by hydrothermal fluids. Thus, determining the REEs in fluids, especially in highly saline solutions, is a prerequisite to understand their fate in hydrothermal fluids. An analytical methodology was established to determine the trace quantities of the REEs in aqueous solutions with compositions typical to seawater and brines. The developed protocol was applied for the quantification of REEs in experimental sodium‐rich carbonate‐bearing hydrothermal solutions. For this purpose, we used two analytical approaches: (a) the REEs were chromatographically isolated from the charged matrix and introduced into a single collector quadrupole ICP‐MS and (b) direct determination of the REEs by LA‐ICP‐MS in experimental solutions loaded into glass capillaries without any additional isolation procedure. Both LA‐ICP‐MS and solution nebulisation ICP‐MS analysis after isolation of the REEs provide identical data in terms of REE concentrations in brines and are consistent within analytical uncertainties. Being an express method, LA‐ICP‐MS can be recommended for REE quantification in brines. At the same time, isolation of the REEs from the charged matrix with subsequent ICP‐MS measurement provides higher accuracy and precision, giving additional information for the REEs mass fractions that are below the detection limit of the LA‐ICP‐MS that was estimated at the ~ 10 ng g−1 level.

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“…2019) and the variety of fluid origin in iron oxide‐copper‐gold ore deposits revealed by REE signatures in fluorite (Schlegel et al . 2020).…”

Section: Overview Of Icp‐ms Methods For Ree Quantification In Geological Samplesmentioning

confidence: 99%

Section: La-icp-ms As a Tool For Express Quantification Of Rees In Solutionsmentioning

confidence: 99%

Quantitative Measurement of Rare Earth Elements in Brines: Isolation from the Charged Matrix Versus Direct LA‐ICP‐MS Measurements – A Comparative Study

Kokh

Luais

Truche

et al. 2021

Geostandard Geoanalytic Res

View full text Add to dashboard Cite

show abstract

“…Приверженцы одной считают, что ключевым в генезисе Fe-Cu-Au месторождений является магматический высокотемпературный флюид [34,36,84]. Вторая группа исследователей полагает, что осаждение железа и других металлов происходило из экзогенных флюидов с высокими содержаниями галогенов, связанных с эволюцией осадочно-вулканогенных и метаморфических толщ [23,46,51] или смешанных мантийно-коровых флюидов [33,50,91,95]. Многие исследователи также предполагают многоступенчатую архитектуру долгоживущих коровых рудообразующих систем, в которых железо-фосфорные месторождения с магнетитом и апатитом (так называемый Кирунский тип) занимают наиболее глубинные их горизонты, а железооксидно-медно-золотое (собственно IOCG Андийского типа) оруденение ассоциируется с субвулканическими системами и тесно связано с медно-золотыми порфировыми и высокосульфидными эпитермальными месторождениями [15,77,88,89,92,94,100].…”

Section: геологическая интерпретацияunclassified

Silicate, Iron Oxide and Copper-Gold-Silver Microspherules in Ores and Pyroclastics of the Kostenginskoye Iron Ore Deposit (Russian Far East)

Бердников¹,

Nevstruev²,

Kepezhinskas³

et al. 2021

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Iron-oxide ores and pyroclastics from the Kostenginskoye deposit in the Malyi Khingan (Russian Far East) contain numerous silicate, iron-oxide, and copper-gold-silver microspherules. Silicate spherules are composed of immiscible iron- and silica-rich glasses, gas cavities and mineral inclusions. Iron-oxide spherules include magnetite with minor ilmenite and Fe-rich silicate glass. Copper-gold-silver spherules contain inclusions predominantly of copper oxide compositions. The studied microspherules are considered to have formed during the rapid ascent of metal-silicate melts from depth and their degassing controlled by liquid immiscibility differentiation. The paper discusses the possible volcanic origin of iron-oxide ores and the associated noble metal mineralization for the deposits of this type.

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Integrated Exploration Model for Concealed Ore Deposit: A Case Study from Shuitou Fluorite Deposit, Inner Mongolia, North China

et al. 2021

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Fluorite as indicator mineral in iron oxide-copper-gold systems: explaining the IOCG deposit diversity

Cited by 14 publications

References 51 publications

Quantitative Measurement of Rare Earth Elements in Brines: Isolation from the Charged Matrix Versus Direct LA‐ICP‐MS Measurements – A Comparative Study

Quantitative Measurement of Rare Earth Elements in Brines: Isolation from the Charged Matrix Versus Direct LA‐ICP‐MS Measurements – A Comparative Study

Silicate, Iron Oxide and Copper-Gold-Silver Microspherules in Ores and Pyroclastics of the Kostenginskoye Iron Ore Deposit (Russian Far East)

Integrated Exploration Model for Concealed Ore Deposit: A Case Study from Shuitou Fluorite Deposit, Inner Mongolia, North China

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