Geochemical and mineralogical evidence for the formation of siderite in Late Permian coal-bearing strata from western Guizhou, SW China

Shen, Minglian; Dai, Shifeng; French, David; Graham, Ian T.; Spiro, Baruch; Wang, Na; Tian, Xichun

doi:10.1016/j.chemgeo.2023.121675

Cited by 11 publications

(2 citation statements)

References 98 publications

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“…Due to its high sensitivity, low detection limit, and broad linear range, inductively coupled plasma mass spectrometry (ICP-MS) has become one of the most competitive and promising methods for trace and ultratrace REE analysis in geological materials [7,[23][24][25] and is widely used in trace element testing compared to other analytical techniques like neutron activation analysis [26][27][28][29][30], X-ray fluorescence spectrometry [31][32][33], laser-induced breakdown spectrometry [34][35][36][37], atomic absorption spectroscopy [38][39][40][41], and inductively coupled plasma atomic emission spectrometry [42][43][44][45]. There have been many reports of concentrations of trace elements in coals that were successfully determined by ICP-MS [46][47][48][49][50][51][52]. However, the determination of Eu by ICP-MS is often interfered with due to the overlapping of M + , MO + , and MOH + ions [53][54][55], especially the polyatomic ions BaO and BaOH formed by Ba [20,22,56,57].…”

Section: Introductionmentioning

confidence: 99%

Precise Determination of Eu Concentration in Coal and Sedimentary Rock Samples Using High-Resolution Inductively Coupled Plasma Mass Spectrometry (HR-ICP-MS)

Zhao,

Liu,

Jia

et al. 2023

Minerals

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Europium (Eu) in coal and sedimentary rocks has important mineral resource potential as well as being a crucial parameter in geochemical studies that can represent changes in the depositional environment during coal deposition and identify the depositional source region. Therefore, it is essential to realize the precise measurement of Eu in coal as this could be a useful parameter for paleoenvironmental reconstruction studies and the exploration of mineral resources. During inductively coupled plasma mass spectrometry (ICP-MS) analysis, polyatomic ions of Ba may interfere with Eu, causing the observed value to be higher than the actual value. This paper develops a new approach for Eu determination by using a high-resolution inductively coupled plasma mass spectrometry (HR-ICP-MS). The mass spectral interference and correction of Eu in the coal and sedimentary rock samples at low, medium, and high resolutions were investigated. The results showed that in the high-resolution mode (resolution = 10,000 amu), the interference of polyatomic ions of Ba could be distinguished from Eu; hence, Eu was determined under this circumstance. Under the optimal experimental circumstances, the detection limit was 0.006 μg/mL, the relative standard deviation was 0.80%–1.22%, and the linear correlation coefficient of the standard curve was over 0.9999. The recoveries of the 103Rh internal standard solution ranged from 94.41% to 100.10%. This method was verified using standard reference materials and selected samples, which demonstrated its high sensitivity, accuracy, and reliability, and a low detection limit, making it appropriate for detecting Eu in samples of coal and sedimentary rocks.

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Section: Introductionmentioning

confidence: 99%

Precise Determination of Eu Concentration in Coal and Sedimentary Rock Samples Using High-Resolution Inductively Coupled Plasma Mass Spectrometry (HR-ICP-MS)

Zhao,

Liu,

Jia

et al. 2023

Minerals

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“…The formation of coal, which is an organic-rich rock, is characterized by reduction and adsorption barriers, and under certain coupling conditions, coal-bearing series can concentrate a variety of metals [6][7][8][9][10][11][12], offering the possibility of recovering critical elements from coal and coal ash [13][14][15][16]. In recent years, the abundance, origin, and modes of occurrence of critical elements in coal have been investigated [17][18][19][20][21][22][23][24], and all these studies have shown that coal is a promising source of critical metals [25][26][27][28][29]. The Jungar Coalfield in Inner Mongolia is a typical area for metal element enrichment in coal measures [30][31][32][33][34][35] and could potentially serve as a new source of REEs.…”

Section: Introductionmentioning

confidence: 99%

Rare Earth Element Characteristics in Coal Ash from the Jungar Energy Gangue Power Plant, Inner Mongolia, China

Huang,

Ning,

Zhang

et al. 2023

Minerals

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The coal and coal-bearing measures in the Jungar Coalfield in Inner Mongolia are characterized by rare earth element (REE) enrichment. Combustion in coal-fired power plants can lead to further enrichment of REEs in coal ash, which serves as a new potential source for REE extraction and smelting. Further, investigating the content, modes of occurrence, and transformation behavior of REEs during coal combustion may help in better understanding REE differentiation during coal combustion and facilitate the development of economically feasible REE recovery technologies. Therefore, in this study, we analyzed coal ash from the Jungar Energy Gangue Power Plant in Inner Mongolia via inductively coupled plasma mass spectrometry, X-ray diffraction, and scanning electron microscopy combined with energy-dispersive spectroscopy. Our results showed that the REE content of the feed coal was 220 μg/g, slightly higher than the average for global coal. Additionally, fly ash had a higher REE content (898 μg/g) than bottom ash, and its rare earth oxide content was approximately 1152 μg/g, which meets the industrial requirements. Bottom and fly ashes contained similar minerals; however, their relative abundances were different. Specifically, mullite, quartz, calcite, and gypsum were slightly more abundant in fly ash than in bottom ash, whereas amorphous solids were slightly more abundant in bottom ash than in fly ash. Furthermore, fly ash, dominated by Si- and Al-rich minerals, was composed of irregular particles of different shapes and sizes. It also contained monazite and REE fluoro-oxides, which possibly originated from the feed coal and had mineral structures that remained unchanged during coal combustion. Thus, the REE fluoro-oxides possibly resulted from the conversion of bastnaesite in the feed coal during combustion and thereafter became attached to the edge of the Si–Al minerals in the fly ash.

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Geochemical and mineralogical responses to thermal alteration by an igneous intrusion in the Dashucun Coal Mine of the Fengfeng coalfield, Hebei, North China

Wang,

Dai,

Esterle

et al. 2024

Applied Geochemistry

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Geochemical and mineralogical evidence for the formation of siderite in Late Permian coal-bearing strata from western Guizhou, SW China

Cited by 11 publications

References 98 publications

Precise Determination of Eu Concentration in Coal and Sedimentary Rock Samples Using High-Resolution Inductively Coupled Plasma Mass Spectrometry (HR-ICP-MS)

Precise Determination of Eu Concentration in Coal and Sedimentary Rock Samples Using High-Resolution Inductively Coupled Plasma Mass Spectrometry (HR-ICP-MS)

Rare Earth Element Characteristics in Coal Ash from the Jungar Energy Gangue Power Plant, Inner Mongolia, China

Geochemical and mineralogical responses to thermal alteration by an igneous intrusion in the Dashucun Coal Mine of the Fengfeng coalfield, Hebei, North China

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