Geochemical characteristics of the Permian coals in the Junger-Hebaopian mining district, northeastern Ordos Basin, China: Key role of paleopeat-forming environments in Ga-Li-REY enrichment

Qin, Guohong; Cao, Daiyong; Wei, Yingchun; Wang, Anmin; Liu, Jincheng

doi:10.1016/j.gexplo.2020.106494

Cited by 17 publications

(8 citation statements)

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“…2, 3). Ga enrichment is usually caused by redox conditions [38,39]. However, they also show different Li/Ba ratios, relating to the migration of sediment [40].…”

Section: Discussionmentioning

confidence: 99%

A method to characterize turquoise deposits in china using sedimentary environment sensitive elements

Xian,

Liang,

et al. 2023

Herit Sci

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Abstract‘Fingerprint’ identification is the key to turquoise provenance studies, but previous studies have met with limited success in China. Turquoises in China mainly occur in altered sedimentary rocks and are formed by weathering, leaching and sedimentation. This paper evaluates the potential for sedimentary environment sensitive elements to be used to distinguish between turquoise deposits in China. In this paper, the ratios of V/Mo, Ce/Ce*, Ni/Co, Sr/Ba, Tl/Ga, Li/Ba and V/Cr were calculated for turquoise of different origins. Our results show that these parameters when used alongside Ga concentration permit effective discrimination between turquoise sources in China. This approach brings to light a new means of analyzing trace element databases and an untapped wealth of information that can be used for future turquoise provenance studies.

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“…2, 3). Ga enrichment is usually caused by redox conditions [38,39]. However, they also show different Li/Ba ratios, relating to the migration of sediment [40].…”

Section: Discussionmentioning

confidence: 99%

A method to characterize turquoise deposits in china using sedimentary environment sensitive elements

Xian,

Liang,

et al. 2023

Herit Sci

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“…During the formation of the 6-6 coal in the Jungar Coalfield, the terrain was elevated in the northwest and declined towards the southeast. The terrigenous clasts predominantly originated from the Middle Archaic, more extensively distributed in the northwestern region of the Yinshan Paleoclast [67][68][69][70][71][72][73][74][75]. In the Heidaigou coal-Ga deposit, the primary source of Ga in the coal is bauxite.…”

Section: Enrichment Genesis Of Heidaigou Coal-ga Depositmentioning

confidence: 99%

Cooperative Exploration Model of Coal–Gallium Deposit: A Case Study of the Heidaigou Coal–Gallium Deposit in the Jungar Coalfield, Inner Mongolia, China

Zhang,

Wei,

Cao

et al. 2024

Minerals

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Gallium (Ga) is a typical scattered trace element that is irreplaceable in strategic sectors such as national defense, wireless communications, new materials, renewable energy, and healthcare. The coal–Ga deposit is an important complement to traditional Ga resources and has become a significant focus for Ga mineral resource exploration. Therefore, there is an urgent need to research the coal–Ga cooperative exploration model from both technical and economic perspectives. Taking the Heidaigou coal–Ga deposit as an example, the enrichment zone of coal–Ga is predominantly situated in the northern part of the exploration area, adjacent to the fault zone. The Ga concentration demonstrates a gradual decline from the north–central region towards the northeast and southeast. Similar vertical Ga distribution patterns are observed in adjacent drillings, with notably higher concentrations in the roof, floor, and parting layers. The cooperative exploration model for coal–Ga deposits is proposed based on the above features. The model employs a comprehensive set of cooperative technical methods, such as remote sensing, geological mapping, seismic exploration, drilling, petrogeochemistry, and well logging. The layout of exploration engineering and the concentration of Ga provide the basis for the estimation of Ga resources. Additionally, the model provides an important scientific basis for the improvement of the strategic coordination ability of Ga mineral resources.

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“…The GI and V/I values are mainly used to reflect the changes in the oxidation-reduction property, water level, and dry-humid climate in peat bogs [33,34,38,101,102]. Therefore, the higher the GI and V/I values, the higher the water level of the peat bog and the more humid the climate.…”

Section: Maceral Indicesmentioning

confidence: 99%

Geochemistry, Mineralogy, and Coal Petrology of No. 4 Coal in Sandaoling Mine, Turpan-Hami Basin, Northwest China: Provenance and Peat Depositional Environment

et al. 2023

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The Turpan-Hami Basin is one of the three coal-accumulating basins in Xinjiang. There is coal, natural gas, petroleum, sandstone-type uranium ore, and other ore resources in the Jurassic strata developed inside. This study aims to gain a deeper understanding of the formation process of ore resources in the Turpan-Hami Basin by studying the provenance and depositional environment of No. 4 coal in the Sandaoling Mine. The results show that No. 4 coal is extra-low ash yield and extra-low sulfur coal. Compared with common Chinese coals and world hard coals, the trace element content in No. 4 coal is normal or depleted. The minerals in coal are mainly clay minerals, silica and sulfate minerals, and carbonates. The diagrams of Al2O3, TiO2, Sr/Y, L,a/Yb, and the REY geochemical features indicate that the Paleozoic intermediates and felsitic igneous rocks in Harlik Mountain and Eastern Bogda Mountain are the main provenance of No. 4 coal. The syngenetic siderite, Sr/Ba, Th/U, total sulfur content, and maceral indices indicate that No. 4 coal was formed in a salt-lake environment, and the climate changed from dry and hot to warm and humid.

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Geochemical characteristics of the Permian coals in the Junger-Hebaopian mining district, northeastern Ordos Basin, China: Key role of paleopeat-forming environments in Ga-Li-REY enrichment

Cited by 17 publications

References 93 publications

A method to characterize turquoise deposits in china using sedimentary environment sensitive elements

A method to characterize turquoise deposits in china using sedimentary environment sensitive elements

Cooperative Exploration Model of Coal–Gallium Deposit: A Case Study of the Heidaigou Coal–Gallium Deposit in the Jungar Coalfield, Inner Mongolia, China

Geochemistry, Mineralogy, and Coal Petrology of No. 4 Coal in Sandaoling Mine, Turpan-Hami Basin, Northwest China: Provenance and Peat Depositional Environment

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