Lanthanoids as a Geochemical Probe and Problems in Lanthanoid Geochemistry Distribution and Behaviour of Lanthanoids in Non-Magmatic-Phases

Möller, P.

doi:10.1007/978-94-009-7175-2_13

Cited by 21 publications

(10 citation statements)

References 49 publications

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“…The available literature on experimental studies deals only with lowtemperature hydrothermal and surface conditions (cf. Möller 1983, Byrne & Li 1995. Selective complexing and differential stabilities of the complexes of individual REE could be responsible, as proposed by Gramaccioli & Pezzotta (1997) and Pezzotta et al (1999).…”

Section: Comparison Of the Absolute Concentration And Chondrite-normamentioning

confidence: 82%

Dysprosian Xenotime-(Y) From the Annie Claim #3 Granitic Pegmatite, Southeastern Manitoba, Canada: Evidence of the Tetrad Effect?

Masau

Černý

Chapman

2000

The Canadian Mineralogist

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Dysprosian xenotime-(Y) was found in the Annie Claim #3 pod of lepidolite-subtype granitic pegmatite within the Greer Lake intrusion of pegmatitic granite, in the Archean Bird River Subprovince of the Superior Province, in southeastern Manitoba. It occurs as microscopic inclusions in spessartine and as discrete crystals, both enclosed in ferroan muscovite, also associated with manganocolumbite -manganotantalite, microlite, zircon and apatite. The xenotime-(Y) contains up to 14.88 wt.% Dy 2 O 3 (and 7.59 wt.% Gd 2 O 3 , 3.31 wt.% Tb 2 O 3 ), the highest concentration of Dy so far observed in this mineral. In chondrite-normalized REE patterns, the positive Tb anomaly is even higher than that of Dy. Along with xenotime-(Y) and xenotime-(Yb) from other granitic pegmatites, altered granites and alpine veins, the Annie Claim #3 xenotime-(Y) shows prominent double segmenting of the Gd to Lu sequence, ascribed by some authors to the tetrad effect in geological materials generated from, or affected, by aqueous media. Analytical problems could not produce this effect in the xenotime samples.

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Section: Comparison Of the Absolute Concentration And Chondrite-normamentioning

confidence: 82%

Dysprosian Xenotime-(Y) From the Annie Claim #3 Granitic Pegmatite, Southeastern Manitoba, Canada: Evidence of the Tetrad Effect?

Masau

Černý

Chapman

2000

The Canadian Mineralogist

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“…Additionally, there are three anhydrite replacing calcite phases (sample C4, C5, and C11) that show convex upward shaped REEY patterns with positive Eu and Y/Ho anomalies. Convex upward shaped REE patterns have been documented for many hydrothermal waters and carbonates that formed from acidic crustal fluids (Bau & Möller, ; Hecht et al, ; Lüders et al, ; Michard, ; Möller, ; Ohr et al, ). In these studies, the fluids most likely originated from interactions with pelitic metasediments or gneisses under acidic conditions whereby apatite is mobilized (Hecht et al, ; Möller et al, ; Ohr et al, ).…”

Section: Data Interpretationmentioning

confidence: 99%

Constraining the Fluid History of a CO₂‐H₂S Reservoir: Insights From Stable Isotopes, REE, and Fluid Inclusion Microthermometry

Zwahlen

Hollis

Lawson

et al. 2019

Geochem Geophys Geosyst

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Reservoirs that host CO2‐H2S‐bearing gases provide a key insight into crustal redox reactions such as thermochemical sulfate reduction (TSR). Despite this, there remains a poor understanding of the extent, duration, and the factors limiting this process on a reservoir scale. Here we show how a combination of petrography, fluid inclusion, rare earth element (REE), and carbon (δ13C), oxygen (δ18O), and sulfur (δ34S) stable isotope data can disentangle the fluid history of the world's largest CO2 accumulation, the LaBarge Field in Wyoming, USA. The carbonate‐hosted LaBarge Field was charged with oil around 80 Ma ago, which together with nodular anhydrite represent the reactants for TSR. The nodules exhibit two distinct trends of evolution in δ13C with both δ34S and δ18O that may be coupled to two different processes. The first trend was interpreted to reflect the coupled dissolution of anhydrite and reduction to elemental sulfur and the oxidation of organic compounds and associated precipitation of calcite during TSR. In contrast, the second trend was interpreted to be the result of the hydrothermal CO2 influx after the cessation of TSR. In addition, mass balance calculations were performed to estimate an approximate TSR reaction duration of 80 ka and to identify the availability of organic compounds as the limiting factor of the TSR process. Such an approach provides a tool for the prediction of TSR occurrence elsewhere and advancing our understanding of crustal fluid interactions.

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“…The thermometric data on the inclusions are also confirmed by other methods, for instance by the physicochemical method of studying mineral equi libria and by the distribution of rare-metal elements in trapped minerals, which are a sensitive indicator [2,15,29]. At Tyrnyauz too, high temperatures of fluorite deposition are confirmed, in particular, by the critically low contents of impurities of REE and Mn in the fluorite, which indicates a high-tempera ture origin of the mineral in a calcic environment (at T of at least 500°) [2,5]; this has been confirmed ex perimentally [2].…”

Section: International Geology Reviewmentioning

confidence: 93%

Hydrosaline Melts in Inclusions in Fluorite From the Tyrnyauz Deposit

Kulikov

Boyarskaya

1989

International Geology Review

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Lanthanoids as a Geochemical Probe and Problems in Lanthanoid Geochemistry Distribution and Behaviour of Lanthanoids in Non-Magmatic-Phases

Cited by 21 publications

References 49 publications

Dysprosian Xenotime-(Y) From the Annie Claim #3 Granitic Pegmatite, Southeastern Manitoba, Canada: Evidence of the Tetrad Effect?

Dysprosian Xenotime-(Y) From the Annie Claim #3 Granitic Pegmatite, Southeastern Manitoba, Canada: Evidence of the Tetrad Effect?

Constraining the Fluid History of a CO₂‐H₂S Reservoir: Insights From Stable Isotopes, REE, and Fluid Inclusion Microthermometry

Hydrosaline Melts in Inclusions in Fluorite From the Tyrnyauz Deposit

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Lanthanoids as a Geochemical Probe and Problems in Lanthanoid Geochemistry Distribution and Behaviour of Lanthanoids in Non-Magmatic-Phases

Cited by 21 publications

References 49 publications

Dysprosian Xenotime-(Y) From the Annie Claim #3 Granitic Pegmatite, Southeastern Manitoba, Canada: Evidence of the Tetrad Effect?

Dysprosian Xenotime-(Y) From the Annie Claim #3 Granitic Pegmatite, Southeastern Manitoba, Canada: Evidence of the Tetrad Effect?

Constraining the Fluid History of a CO2‐H2S Reservoir: Insights From Stable Isotopes, REE, and Fluid Inclusion Microthermometry

Hydrosaline Melts in Inclusions in Fluorite From the Tyrnyauz Deposit

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Constraining the Fluid History of a CO₂‐H₂S Reservoir: Insights From Stable Isotopes, REE, and Fluid Inclusion Microthermometry