Optimization of conditions for sample preparation of carbonaceous geological sampeles for subsequent mass spectrometry with inductively coupled plasma analysis

Anoshkina, Yu. V.; Asochakova, E. V.; Buharova, O. V.; Otmahov, V. I.; Тишин, П. А.

doi:10.15826/analitika.2013.17.1.007

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…Immediately prior to ICP-MS analysis, the sample was diluted by nitric acid to yield a concentration of 3%. The dilution factor was 1000 [20]. Error rates in the sample for the measurement range from 0.001 to 0.1 ppm are not more than 0.39%, over 0.1 to 10 ppm are not more than 0.32%, over 10 to 500 ppm are not more than 0.21% and over 500 to 50,000 ppm are not more than 0.17%.…”

Section: Methodsmentioning

confidence: 94%

Early Triassic Episode of the Kresty Volcano–Plutonic Complex Formation in the Maymecha-Kotuy Alkaline Province, Polar Siberia: Geochemistry, Petrology and Uranium–Lead Geochronology

Sazonov,

Gertner,

Mustafaev

et al. 2024

Minerals

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The Kresty volcano–plutonic complex (KVPC) is one of the representatives of the alkaline–ultrabasic magmatism in the Maymecha-Kotuy Alkaline Province in Polar Siberia. The geological structure of the KVPC consists of intrusive formations of olivinite–pyroxenite and melilitolite–monticellitolite bodies, a series of rocks that break through dikes of trachydolerites, syenites, granosyenites, alkaline picrites and lamprophyres. This paper summarizes the results of the authors’ long-term research on the geological structure and features of the material composition of the intrusive magmatic rocks, including geochemistry, mineralogy, distribution of rare earth elements (REE), as well as the results of isotope studies. The multielement composition of the KVPC intrusions demonstrates a complex geodynamic paleoenvironment of the formation as plume nature with signs of subduction and collision. For the ultrabasic series with normal alkalinity from the first phase of the KVPC, a Sm-Nd isochron age yielded an Early Triassic (T1) result of 251 ± 25 Ma. Here, we present U-Pb dating of zircons and perovskite of high-calcium intrusive formations and a dyke complex of alkaline syenites. Thus, for the intrusion of kugdite (according to perovskite), the age determination was 249 ± 4 Ma, and for the crosscutting KVPC dykes of syenites (according to zircon) 249 ± 1 Ma and 252 ± 1 Ma. The age of the most recent dike is almost identical to the age of the main intrusive phases of the KVPC (T1), which corresponds to a larger regional event of the Siberian LIP—251 Ma. According to isotopic Sr-Nd parameters, the main source of KVPC magmas is a PREMA-type material. For dyke varieties, we assume there was an interaction of plume melts with the continental crust. The new age results obtained allow us to further constrain the episodes of alkaline–ultrabasic intrusions in Polar Siberia, taking into account the interaction of mantle plume matter and crustal material.

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Section: Methodsmentioning

confidence: 94%

Early Triassic Episode of the Kresty Volcano–Plutonic Complex Formation in the Maymecha-Kotuy Alkaline Province, Polar Siberia: Geochemistry, Petrology and Uranium–Lead Geochronology

Sazonov,

Gertner,

Mustafaev

et al. 2024

Minerals

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“…Immediately prior to ICP-MS measurements, the sample was diluted by nitric acid to yield a concentration 3%. The dilution factor was 1000 [58].…”

Section: Methodsmentioning

confidence: 99%

The Paleozoic-Aged University Foidolite-Gabbro Pluton of the Northeastern Part of the Kuznetsk Alatau Ridge, Siberia: Geochemical Characterization, Geochronology, Petrography and Geophysical Indication of Potential High-Grade Nepheline Ore

et al. 2020

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Geological, geochemical and ground magnetic techniques are used to characterize the University alkaline-gabbroid pluton and crosscutting N-S trending alkaline dikes, located northeast of the Kuznetsk Alatau ridge, Siberia. Trace element concentrations and isotopic compositions of the igneous units were determined by XRF, ICP-MS and isotope analysis. The Sm-Nd age of subalkaline (melanogabbro, leucogabbro 494–491 Ma) intrusive phases and crosscutting alkaline dikes (plagioclase ijolite, analcime syenite 392–389 Ma) suggests two stages of activity, likely representing separate events. The subalkaline and alkaline rocks are characterized by low silicic acidity (SiO2 = 41–49 wt %), wide variations in alkalinity (Na2O + K2O = 3–19 wt %; Na2O/K2O = 1.2–7.2 wt %), high alumina content (Al2O3 = 15–28 wt %) and low titanium content (TiO2 = 0.07–1.59 wt %). The new trace element data for subalkaline rocks (∑REE 69–280 ppm; La/Yb 3.7–10.2) of the University pluton and also the crosscutting younger (390 Ma) alkaline dikes (∑REE 10–1567 ppm; La/Yb 0.7–17.8 ppm) both reflect an intermediate position between oceanic island basalts (OIBs) and island arc basalts (IABs). The presence of a negative Nb–Ta anomaly and the relative enrichment in Rb, Ba, Sr, and U indicate a probable interaction of mantle plume material with the lithospheric mantle beneath previously formed accretion complexes of subduction zones. The isotopic signatures of strontium (εSr(T) +3.13–+28.31) and neodymium (εNd(T) +3.2–+8.7) demonstrate the evolution of parental magmas from a plume source from moderately depleted PREMA mantle, whose derivatives underwent selective crustal contamination.

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Determination of 234U/238U, 235U/238U, 236U/238U Isotope Ratios in Uranium Oxide by Sector-Field ICP-MS

Kutnii

Burdeinyi

Vanzha

et al. 2020

EEJP

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Optimization of conditions for sample preparation of carbonaceous geological sampeles for subsequent mass spectrometry with inductively coupled plasma analysis

Cited by 3 publications

References 3 publications

Early Triassic Episode of the Kresty Volcano–Plutonic Complex Formation in the Maymecha-Kotuy Alkaline Province, Polar Siberia: Geochemistry, Petrology and Uranium–Lead Geochronology

Early Triassic Episode of the Kresty Volcano–Plutonic Complex Formation in the Maymecha-Kotuy Alkaline Province, Polar Siberia: Geochemistry, Petrology and Uranium–Lead Geochronology

The Paleozoic-Aged University Foidolite-Gabbro Pluton of the Northeastern Part of the Kuznetsk Alatau Ridge, Siberia: Geochemical Characterization, Geochronology, Petrography and Geophysical Indication of Potential High-Grade Nepheline Ore

Determination of 234U/238U, 235U/238U, 236U/238U Isotope Ratios in Uranium Oxide by Sector-Field ICP-MS

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