Precision Geochemical (Icp-Ms, La-Icp-Ms) Analysis of Rock and Mineral Composition: The Method and Accuracy Estimation in the Case Study of Early Precambrian Mafic Complexes

Светов, С. А.; Степанова, Александра Владимировна; Чаженгина, Светлана Юрьевна; Svetova, Evgeniya; Рыбникова, Зоя Павловна; Михайлова, Анжела Ивановна; Парамонов, Арсений Сергеевич; Эхова, Марина Валерьяновна; Колодей, Владимир Александрович; Stepanova, A. V.; Chazhengina, Svetlana; Rybnikova, Zoya; Mikhaylova, A. B.; Paramonov, A. V.; Kolodey, Vladimir

doi:10.17076/geo140

Cited by 37 publications

(2 citation statements)

References 7 publications

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“…The chemical composition of the rocks was determined at the Testing and Matter Analysis Centre, Institute of Geology, KarRC, RAS, Petrozavodsk, Russia. The detail methodology and precision is described by Svetov et al (2015), Singh and Slabunov (2015), which profusely discussed in Slabunov and Singh (2018). To estimate rock-forming element concentrations, sample powder was first melted with sodium carbonate, and the resultant melt was then leached with diluted hydrochloric acid.…”

Section: Sampling and Analytical Techniquesmentioning

confidence: 99%

Geochemistry and geodynamic setting of Paleoproterozoic granites of Lesser Garhwal Himalaya, India

Mishra

Singh

Слабунов

et al. 2019

J. Geoscience Eng. Environ. Technol.

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The granite and gneisses rocks are well exposed around Toneta, Tilwara and Chirbatiyakhal region in the Lesser Garhwal Himalaya have less studied which consider as Paleoproterozoic age. The granites from Toneta area are classified as K-rich peraluminous granite with low Na2O varies from 0.85 to 2.4 wt.% and high K2O content varies from 5.0 to 6.9 wt.%. The average Al2O3 (14.16 wt.%) in the granite is greater than the total alkalies (Na2O+K2O = Av. 7.62 wt.%), the Titania (TiO2) content is low ranging from 0.1 to 0.28 wt. %. In the Y + Nb – Rb, Y – Nb, Ta + Yb – Rb, and Yb – Ta discrimination diagram of Pearce et al. (1984) show that the Toneta granites mostly plots within the syn-collision granite fields. This is typical collisional granite.

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Section: Sampling and Analytical Techniquesmentioning

confidence: 99%

Geochemistry and geodynamic setting of Paleoproterozoic granites of Lesser Garhwal Himalaya, India

Mishra

Singh

Слабунов

et al. 2019

J. Geoscience Eng. Environ. Technol.

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“…Петрографическое изучение пород выполнялись с использованием поляризационного микроскопа «ПОЛАМ Р-312», содержания петрогенных элементов в пробах определялись методом силикатного анализа [2], концентрации редких и редкоземельных элементов измерялись на квадрупольном масс-спектрометре X-SERIES 2 Thermo scientific по методике [4]. Все работы проводились в Аналитическом центре Института геологии КарНЦ РАН (г. Петрозаводск).…”

Section: методы исследованияunclassified

Кластический Материал Неоархейского Молассоидного Комплекса Койкарского Домена: Петрографическая И Геохимическая Характеристика И Обстановки Формирования

Бакаева¹,

Ран²

2018

Труды ФНС

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Palaeoproterozoic S‐type granites from Garhwal Himalaya, NW India: Geochemistry, Sm–Nd isotope systematics and tectonic implications

et al. 2022

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A combined geochemical and Sm-Nd isotopic study on the Palaeoproterozoic (1,845 Ma) granites of the Lesser Himalayan Crystalline Sequence (LHCS) in the Garhwal region of NW India has been done in the present study. These granite samples are characterized by high silica, alumina, and potash and belong to a peraluminous to strongly peraluminous series, having molar A/CNK values of 1.01 to 2.4. The low P 2 O 5 contents and its negative correlation with SiO 2 presiding out that the granites have S-type affinity, also supported by various classification diagrams (ACF; SiO 2 vs. P 2 O 5 , Na 2 O + K 2 O-CaO, and Th). The concentration of trace elements Ba, Sr, Nb, and Ti are low, and Rb, Th, U, and Pb are found to be high. The granites have low total rare earth elements contents of 56.19-229.16 ppm with enrichment in Light rare earth elements (LREE) ([La/Yb] N = 1.61-15.08) and negativeeuropium anomaly (Eu/Eu* = 0.12-0.31). Sm-Nd isotope studies were also performed for three granite samples. Estimated model ages as 2.5-2.7 Ga, indicates the contribution of the Archean crustal substrate as their protolith source. Therefore, we assume that the melting of metasedimentary rocks with Archean protolith can form these peraluminous granites in an accretional-collisional event, during the Palaeoproterozoic on the western flank of the Columbia supercontinent.

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Precision Geochemical (Icp-Ms, La-Icp-Ms) Analysis of Rock and Mineral Composition: The Method and Accuracy Estimation in the Case Study of Early Precambrian Mafic Complexes

Cited by 37 publications

References 7 publications

Geochemistry and geodynamic setting of Paleoproterozoic granites of Lesser Garhwal Himalaya, India

Geochemistry and geodynamic setting of Paleoproterozoic granites of Lesser Garhwal Himalaya, India

Кластический Материал Неоархейского Молассоидного Комплекса Койкарского Домена: Петрографическая И Геохимическая Характеристика И Обстановки Формирования

Palaeoproterozoic S‐type granites from Garhwal Himalaya, NW India: Geochemistry, Sm–Nd isotope systematics and tectonic implications

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