Characteristics and Genesis of Organic Matter within the Lower Member of Yaojia Formation and its Implications for Tabular-type Uranium Deposits in the Southwest of Songliao Basin

Huang, Shutao; Qin, Mingkuan; Liu, Zhangyue; Fuli, Deng; Xiao, Huang; Guo, Qiang; Licheng, Jia

doi:10.1134/s1075701521310019

Cited by 4 publications

(20 citation statements)

References 32 publications

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“…Additionally, in spite of a more negative ∆G value of DOC oxidation than that of U oxidation, O 2 consumption of DOC oxidation was much lower (1.9%). It possibly resulted from the spatial heterogeneity of organic matter distribution in ore‐bearing aquifers and/or a high proportion of organic components refractory to oxidation by O 2 due to its old age (Gao et al., 2020; S. H. Huang et al., 2021; W. Y. Huang et al., 2021).…”

Section: Discussionmentioning

confidence: 99%

“…The results showed that the dissolution of evaporite minerals accounted for a relatively lower proportion (i.e., 14.8% in GC, 4.4% in M2, and 5.1% in M1) (Figure 6b), and groundwater SO 4 2− mainly originated from the rain, with the highest contribution to GC (83.5%), followed by M2 (82.0%) and M1 (79.9%). More positive δ 34 S SO4 and δ 18 O SO4 values might result from the bacterial sulfate reduction in background groundwater (i.e., GC) (Druhan et al., 2008; S. H. Huang et al., 2021; W. Y. Huang et al., 2021; Liu et al., 2022, 2023). Therefore, δ 34 S SO4 and δ 18 O SO4 in GC groundwater were both inherited from rainwater and modified by bacterial sulfate reduction.…”

Section: Discussionmentioning

confidence: 99%

“… (a) Location of Songliao Basin; (b) Geological map of U deposits in the southwest of Songliao Basin (modified from W. Y. Huang et al., 2021); (c) Locations of groundwater sampling wells in the study area. …”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Multi‐Isotope Based Identification and Quantification of Oxygen Consuming Processes in Uranium Hosting Aquifers With CO₂ + O₂ In Situ Leaching

Xiu

Guo

et al. 2023

Water Resources Research

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Although neutral in situ leaching through CO2 + O2 is employed to extract uranium (U) in sandstone by in situ leaching (ISL), mechanisms of U mobilization and O2 consumption remained unclear. To address this gap, 18 groundwater samples were taken from the Qianjiadian sandstone U ore field, including seven samples from production wells in mining area M1 (mining for 5 years), six samples from production wells in mining area M2 (mining for 4 years), and five samples from monitoring wells (GC), to quantify U‐mobilizing processes in the mining aquifer by employing hydrogeochemical compositions and multi‐isotopes. The introduction of O2 and CO2 efficiently stimulated U mobilization in the mining aquifer. The injected CO2 critically promoted the dissolution of carbonate minerals, which enhanced the formation of uranyl carbonate (predominantly CaUO2(CO3)22− and Ca2UO2(CO3)3(aq)) and thus facilitated U mobility. Generally, δ34SSO4 and δ18OSO4 in M2 and M1 were significantly lower than those in GC (p < 0.01). A Bayesian isotope mixing model of δ34SSO4 and δ18OSO4 showed that the contribution of pyrite oxidation to SO42− concentration increased from 1.7% in GC to 13.6% in M2 and to 15.0% in M1. During ISL, pyrite, ammonium, and dissolved organic carbon were major compounds competing with U(IV) for introduced O2 in the ore‐bearing aquifer. Most of the consumed O2 was used for pyrite oxidation (56.2%) and U(IV) oxidation (39.3%), following the thermodynamic sequence of those redox reactions. The current results highlighted the significance of increasing O2 utilization efficiency in improving the performance of ISL operations.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Multi‐Isotope Based Identification and Quantification of Oxygen Consuming Processes in Uranium Hosting Aquifers With CO₂ + O₂ In Situ Leaching

Xiu

Guo

et al. 2023

Water Resources Research

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“…Methane (CH 4 ) is the main component, with contents ranging from 0.39 to 43,270 μL/kg. Comprehensive analysis of field cores, uranium content and previous data (Huang et al, 2021) reveals that the AHC of sandstones does not show a significant correlation with their uranium contents, indicating that both uranium-bearing and uranium barren samples exhibit a wide range of AHC. Meanwhile, all loose sandstones with argillaceous cementation display very low concentration of the AHC, including those showing obvious colour-fading due to secondary reduction at the macroscopic level (Figure 2b).…”

Section: Acidolysis Hydrocarbon Contentmentioning

confidence: 88%

“…The residual grey reduction belt is limited to a relatively small range, primarily accompanying the major uranium ore bodies (Huang et al, 2021;Zhang, 2020). Thus, the grey lenticular bodies with an NW orientation are entirely enveloped within the oxidation zone (Figure 1d).…”

Section: Qianjiadian Uranium Ore Fieldmentioning

confidence: 99%

Spatiotemporal relationship between hydrocarbon fluid and sandstone‐hosted uranium deposits in the Qianjiadian area, Songliao Basin

Huang,

Qin,

Liu

et al. 2023

Geological Journal

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The spatiotemporal coupling relationship between deep hydrocarbon fluid and sandstone uranium mineralization within the shallow buried red‐variegated clastic rocks in the Qianjiadian area of the Songliao Basin remains a topic of controversy. This paper aims to provide a comprehensive understanding of the source, nature and exudative age of deep exotic hydrocarbon, as well as the interaction mechanism and alteration process between hydrocarbon fluid and clastic rock. To achieve this, various methods were employed, including acidolysis hydrocarbon test (AHT), clay x‐ray diffraction (XRF), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), carbon isotope analysis (CIA) and LA‐ICP‐MS U–Pb isotopic dating. The results indicate that some tight sandstones from the Qingshankou Formation in Dalin uranium deposit exhibit high acidolysis hydrocarbon content (AHC), reaching n × 104 μL/kg, and predominantly consisting of low mature oil‐type gas. Local microscopic observations reveal pore fluorescence and hydrocarbon‐bearing inclusions with nattier blue tone. Furthermore, the kaolinites present in the ore area's sand‐bodies show a significantly higher content anomaly, commonly exceeding >50%, compared to the same layer in peripheral regions. Extensive dissolutions of lithic grains and feldspars are observed, along with the widespread occurrence of ferro‐dolomites and colloidal pyrites. Additionally, exotic asphaltenes are sporadically developed in localized areas. These findings provide evidence that the sand‐bodies experienced a significant exfiltration event of external gaseous fluids. The light carbon isotopes (δ13CV‐PDB ranging from −33.26‰ to −30.06‰) of group components and n‐Alkane suggest that the hydrocarbon originates from the source rock of the Lower Cretaceous Jiufotang Formation. A detailed two‐stage alteration sequence caused by acidic and reducing hydrocarbon is clarified, encompassing acidic corrosion, kaolinization, pyritization, silification and asphaltization during the exudation stage, followed by ferro‐dolomitization in the later cessation stage. Notably, vermicular secondary kaolinites, formed through the interaction between acidic hydrocarbon fluid and low‐temperature meteoric groundwater, serve as significant markers for the exfiltration of deep hydrocarbon fluid. In‐situ U–Pb dating of hydrocarbon‐bearing ferro‐dolomite yielded absolute exfiltration ages of 63.54 ± 4.13 and 65.93 ± 3.35 Ma. By integrating the tectonic–sedimentary–fluid evolution history and uranium mineralization characteristics in the study area, a three‐stage superimposed metallogenic model is proposed for the Upper Cretaceous red‐variegated layers: (1) the sedimentary and diagenetic stage of the target layer during the Late Cretaceous, (2) the predominant hydrocarbon exudation stage at the end of the Late Cretaceous, and (3) the main uranium mineralization stage since the Paleogene. This study enhances our understanding of coupled‐genetic sandstone‐type uranium deposit in a sedimentary basin and provides valuable guidance for prospecting similar red‐variegated beds in the Songliao Basin and other sedimentary basins worldwide.

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Characteristics of rock fissure fillings and their relationship with the accumulation of uranium and associated elements in the Kailu Sag of the southern Songliao Basin, Northeast China

Feng,

Zhang,

Nie

et al. 2024

Ore Geology Reviews

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Characteristics and Genesis of Organic Matter within the Lower Member of Yaojia Formation and its Implications for Tabular-type Uranium Deposits in the Southwest of Songliao Basin

Cited by 4 publications

References 32 publications

Multi‐Isotope Based Identification and Quantification of Oxygen Consuming Processes in Uranium Hosting Aquifers With CO₂ + O₂ In Situ Leaching

Multi‐Isotope Based Identification and Quantification of Oxygen Consuming Processes in Uranium Hosting Aquifers With CO₂ + O₂ In Situ Leaching

Spatiotemporal relationship between hydrocarbon fluid and sandstone‐hosted uranium deposits in the Qianjiadian area, Songliao Basin

Characteristics of rock fissure fillings and their relationship with the accumulation of uranium and associated elements in the Kailu Sag of the southern Songliao Basin, Northeast China

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Characteristics and Genesis of Organic Matter within the Lower Member of Yaojia Formation and its Implications for Tabular-type Uranium Deposits in the Southwest of Songliao Basin

Cited by 4 publications

References 32 publications

Multi‐Isotope Based Identification and Quantification of Oxygen Consuming Processes in Uranium Hosting Aquifers With CO2 + O2 In Situ Leaching

Multi‐Isotope Based Identification and Quantification of Oxygen Consuming Processes in Uranium Hosting Aquifers With CO2 + O2 In Situ Leaching

Spatiotemporal relationship between hydrocarbon fluid and sandstone‐hosted uranium deposits in the Qianjiadian area, Songliao Basin

Characteristics of rock fissure fillings and their relationship with the accumulation of uranium and associated elements in the Kailu Sag of the southern Songliao Basin, Northeast China

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Multi‐Isotope Based Identification and Quantification of Oxygen Consuming Processes in Uranium Hosting Aquifers With CO₂ + O₂ In Situ Leaching

Multi‐Isotope Based Identification and Quantification of Oxygen Consuming Processes in Uranium Hosting Aquifers With CO₂ + O₂ In Situ Leaching