Composition and sources of volatiles and noble gases in fluid inclusions in pyroxenites and carbonatites of the Seblyavr Massif, Kola Peninsula

Buikin, A. I.; Verchovsky, A. B.; Sorokhtina, N. V.; Kogarko, L. N.

doi:10.1134/s0869591114050038

Cited by 13 publications

(7 citation statements)

References 22 publications

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“…Figure 6 shows variations in 40 Ar/ 36 Ar ratios (from 17,37 and our unpublished data for sample Guli85‐134Phoskorite) and hydrogen isotopic ratios (from 17,37 and our unpublished data for sample Guli97‐74Px) in fluid inclusion gases extracted from carbonatites and associated ultramafic rocks by crushing in vacuum. For most of the samples shown in Figure 6, the argon isotopic compositions correlate well with their hydrogen isotopic ratios, indicating mixing of different water sources (i.e., mantle and paleometeoric waters) in various proportions.…”

Section: Resultsmentioning

confidence: 99%

“…The latter often contain and Seblyavr (Kola Peninsula) massifs. Figure 6 shows variations in 40 Ar/ 36 Ar ratios (from 17,37 and our unpublished data for sample Guli85-134Phoskorite) and hydrogen isotopic ratios (from 17,37 and our unpublished data for sample Guli97-74Px) in fluid inclusion gases extracted from carbonatites and T A B L E 1 Hydrogen and oxygen isotopic compositions in water extracted from the series of quartz aliquots by crushing or thermal decrepitation, and carbon isotopic composition in CO 2 extracted by crushing from some of the studied samples shows that for n = 12 (crushing experiments only) the point −97.1 is an outlier at the 1σ level, but not for the 2σ level. However, taking all measured values (including thermodecrepitation data n = 17), this point is an outlier also for the 2σ level.…”

Section: Reproducibility Variationsmentioning

confidence: 99%

“…We developed a sample preparation line for gases from fluid inclusions in rocks and minerals 32 and a technique for the preparation of micro-quantity water samples from fluid inclusions for isotope analysis. 33,34 While the noble gas, nitrogen and CO 2 data obtained with our crushing technique were successfully used to study mid ocean ridge basalt (MORB) glasses, 9,10,35 mantle xenoliths, 36 carbonatites 17,37,38 and meteorites, 39 the reliability of inclusion water analyses had to be proved. Based on the results of the study of hydrothermal quartz inclusions from the Solnechnoye tin ore deposit (Khabarovsk District), a δ 2 H reproducibility of ±4 ‰ (1σ, n = 5) was achieved.…”

Section: Introductionmentioning

confidence: 99%

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An isotope ratio mass spectrometry‐based method for hydrogen isotopic analysis in sub‐microliter volumes of water: Application for multi‐isotope investigations of gases extracted from fluid inclusions

Buikin

Кузнецова

Velivetskaya

et al. 2020

Rapid Comm Mass Spectrometry

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The study of multi-isotope systematics of fluid inclusions is of great importance for understanding of the sources and evolution of fluid phases in mantle rocks and ore deposits. The most appropriate technique for such investigations is a (stepwise) crushing method that is widely used for noble gases and nitrogen. However, because of the possible influence of mechanochemical reactions and back sorption, analyses of the isotope composition of water extracted by crushing from fluid inclusions are challenging. Methods: An isotope ratio mass spectrometry (IRMS)-based method for hydrogen (and oxygen) isotopic analysis in sub-microliter volumes of water extracted from fluid inclusions by crushing is presented. The verification of the possible influence of adsorption processes and mechanochemical reactions on the results of isotope analysis was performed for the first time. For that a series of parallel analyses of hydrogen isotopic ratios from water inclusions in quartz applying physically different extraction methods (crushing and thermodecrepitation) was conducted. Results: Four series of quartz aliquots were analyzed: three series extracting water by crushing (two series for δ 2 H values and one for δ 18 O values) and one by thermodecrepitation. The mean value for the crushing results is δ 2 H = −85.3 ± 3.6 ‰ (1σ, n = 11), which coincides well with the thermodecrepitation data (−86.3 ± 2.0 ‰, 1σ, n = 5), suggesting that our methodological approach allows the influence of back sorption or mechanochemical reactions during the crushing experiment to be minimized. The reproducibility of the oxygen isotopic ratios is ±0.9 ‰ (1σ, n = 5). Conclusions: The conducted experiments have shown that the influence of back sorption or mechanochemical reactions during crushing on isotopic results is not crucial for our method. The developed IRMS-based method for hydrogen (and oxygen) isotopic analysis in sub-microliter volumes of water is well applicable for multi-isotope investigations of gases extracted from fluid inclusions. As an

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Section: Resultsmentioning

confidence: 99%

Section: Reproducibility Variationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An isotope ratio mass spectrometry‐based method for hydrogen isotopic analysis in sub‐microliter volumes of water: Application for multi‐isotope investigations of gases extracted from fluid inclusions

Buikin

Кузнецова

Velivetskaya

et al. 2020

Rapid Comm Mass Spectrometry

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“…Variations in the carbon isotopic composition in the crushing steps of a single sample may, perhaps, be explained by the contribution of fluids of different genesis. In this sense the situation with the carbon isotopic composition of СО 2 is similar to the carbonatites of the Seblyavr ultramafic complex at the Kola Peninsula (Buikin et al, 2014a).…”

Section: Sources Of Co 2 and H 2 Omentioning

confidence: 58%

The Sources and Evolution of Fluid Phases of Guli Massif Carbonatites (West Siberia): Summarizing of Noble Gases, N2, CO2, H2O Stepwise Crushing Data

et al. 2021

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Here we present summarizing of isotopic compositions and element ratios of noble gases, nitrogen, carbon and hydrogen in carbonatites of different generations of the Guli massif (West Siberia, Russia) obtained by stepwise crushing. The data point to the subcontinental lithospheric mantle (SCLM) as a primary source of the fluid phase in Guli carbonatites. However, the estimated 40 Ar/ 36 Ar ratio in the Guli mantle source of about 5400 is similar to the Kola plume value of 5000 ± 1000 (Marty et al., 1998). One explanation of such a low estimated 40 Ar/ 36 Ar ratio in the mantle end-member with SCLM type helium ( 4 Не/ 3 Не 120000) and neon ( 21 Nе/ 22 Nе mantle ~ 0.7) is an admixture of atmospheric argon to the local mantle source. This assumption is supported by the Ar-Ne systematics as well as by the data for hydrogen isotopic composition. Early carbonatite differs significantly from the later ones by the concentration of highly volatile components, as well as by the isotopic compositions of carbon (CO 2 ), argon, and hydrogen (H 2 O). The mantle component dominated in fluids at the early formation stages of the Guli massif rocks, whereas the late stages of carbonatite formation were characterized by an additional fluid source, which introduced atmospheric argon and neon, and most likely a high portion of CO 2 with isotopically heavy carbon. The argon-neon-hydrogen isotope systematics suggest that the most plausible source of these late stage fluids are high temperature paleometeoric waters. The absence of a plume signature could be explained in terms that Guli carbonatites have been formed at the waning stage of plume magmatic activity with an essential input of SCLM components.

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“…7). Analogous geochemical behavior of these gases was also detected in carbonatite from the Sebljavr Massif in the Kola Peninsula (Buikin et al, 2014b) and metasomatized garnet lher-zolite from the Jetty Oasis in eastern Antarctica (Buikin et al, 2014a).…”

Section: Introductionmentioning

confidence: 62%

Equipment and newly developed methodological approaches for isotopic–geochemical studying fluid phases in rocks and minerals

et al. 2017

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The paper presents data on an original equipment complex, consisting of two apparatuses, designed to prepare rock and mineral samples for the isotopic analysis of their fluid and/or gas inclusions. An example of samples from the Guli alkaline ultramafic massif in the Maimecha-Kutui province, northern central Siberia, is employed to demonstrate the capabilities of the technique of stepwise sample crushing and multiple-isotope analysis of the fluid phase.

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Composition and sources of volatiles and noble gases in fluid inclusions in pyroxenites and carbonatites of the Seblyavr Massif, Kola Peninsula

Cited by 13 publications

References 22 publications

An isotope ratio mass spectrometry‐based method for hydrogen isotopic analysis in sub‐microliter volumes of water: Application for multi‐isotope investigations of gases extracted from fluid inclusions

An isotope ratio mass spectrometry‐based method for hydrogen isotopic analysis in sub‐microliter volumes of water: Application for multi‐isotope investigations of gases extracted from fluid inclusions

The Sources and Evolution of Fluid Phases of Guli Massif Carbonatites (West Siberia): Summarizing of Noble Gases, N2, CO2, H2O Stepwise Crushing Data

Equipment and newly developed methodological approaches for isotopic–geochemical studying fluid phases in rocks and minerals

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