Study on inverse geochemical modeling of hydrochemical characteristics and genesis of groundwater system in coal mine area – a case study of Longwanggou Coal Mine in Ordos Basin

Lu, Chang; Cheng, Wenju; Yin, Huiyong; Li, Shuo; Zhang, Yian; Dong, Fangying; Cheng, Yuxiao; Zhang, Xiaorong

doi:10.1007/s11356-024-32153-z

Cited by 4 publications

(3 citation statements)

References 42 publications

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“…As an excellent tracer, hydrogen and oxygen isotopes are frequently used to determine the source and recharge conditions of geothermal water, reveal the migration route of groundwater in the whole area, and analyze the water–rock interaction at depth. , The change of δ 18 O is mainly affected by the material exchange in water–rock interaction …”

Section: Resultsmentioning

confidence: 99%

“… 28 , 29 The change of δ 18 O is mainly affected by the material exchange in water–rock interaction. 30 …”

Section: Resultsmentioning

confidence: 99%

“…28,29 The change of δ 18 O is mainly affected by the material exchange in water−rock interaction. 30 By studying the atmospheric precipitation in the North American continent, Craig 31 summed up the global atmospheric precipitation line of δD = 8δ 18 O+10, namely the Craig equation, according to the linear change of hydrogen and oxygen isotope composition. Since then, different scholars have The tritium isotope content of geothermal water in ZhangDiao1 is 1.1 ± 0.6 (T.U).…”

Section: Hydrogen and Oxygen Stable Isotopesmentioning

confidence: 99%

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Study on the Genetic Mechanism of Carbonate Rock Type Hot Mineral Water─A Case Study of Diaozhen, Jinan

Hao,

Tang,

et al. 2024

ACS Omega

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Geothermal resources are one of the most valuable resources in renewable energy because of their advantages of green environmental protection, stability, and reliability. Carbonate rock type geothermal reservoirs have great research significance. Carbonate rock type geothermal resources are abundant in the Shandong area. In this paper, we take the carbonate-type geothermal reservoir in the Diaozhen area of Jinan City as the research object, analyze the regional geothermal geological conditions, and identify the geological structure. Through physical logging exploration, hydrochemical analysis, isotope testing, and drilling exploration, we reveal the geothermal genesis mechanism and construct the genetic model of the carbonate geothermal system. The results show that Diaozhen area belongs to a low-temperature geothermal field and weak open karst thermal reservoir and that the reservoir is mainly Ordovician Majiagou group limestone. The thermal insulation caprock is the overlying Quaternary and Neogene strata with a cumulative thickness of 1376 m. The results of geophysical exploration wells and drilling data verify that the Mingshui fracture is seen around 1630−1645m, and the diorite intrusion is seen at 1610m. The Mingshui fracture connects the deep and shallow aquifers and is a geothermal fluid migration channel. The geothermal water in the Diaozhen area is mainly from the recharge of atmospheric precipitation, with a rich ion content and easy enrichment of trace elements. The regional thermal reservoir is mainly recharged by the deep circulation lateral runoff of Ordovician karst water. After long-distance deep circulation migration, groundwater continuously absorbs heat from the surrounding rock and is heated to geothermal raw water in the deep part. Deep geothermal water rises along the water-conducting fracture and mixes with shallow cold water to form shallow, low-temperature geothermal water.

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Section: Resultsmentioning

confidence: 99%

“… 28 , 29 The change of δ 18 O is mainly affected by the material exchange in water–rock interaction. 30 …”

Section: Resultsmentioning

confidence: 99%

Section: Hydrogen and Oxygen Stable Isotopesmentioning

confidence: 99%

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Study on the Genetic Mechanism of Carbonate Rock Type Hot Mineral Water─A Case Study of Diaozhen, Jinan

Hao,

Tang,

et al. 2024

ACS Omega

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Hydrogeochemical characterization and human health risks associated with groundwater nitrate concentrations in the Saiss basin, Morocco

Lahjouj,

El Hmaidi,

Achtak

et al. 2025

HydroResearch

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Transport characteristics of heavy metals in the soil-atmosphere-wheat system in farming areas and development of multiple linear regression predictive model

Deng,

Sun,

Zhang

et al. 2024

Sci Rep

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Heavy metal accumulation in agricultural products has become a major concern. Previous studies have focused on the transport of heavy metals from the soil and their accumulation in crops. However, recent studies revealed that wheat leaves, ears, and awns can also transport and accumulate heavy metals. Wheat grains can be influenced by two sources of heavy metals: soil contamination and atmospheric deposition. To comprehend the transport characteristics of heavy metals in soil, atmospheric deposition, and wheat, 37 samples each for wheat rhizosphere soil, wheat roots, stems, leaves, and grains were collected. Fifteen samples of atmospheric dry deposition and atmospheric wet deposition were collected from Linshu County (northern area), China. Based on the test data, the characteristics of heavy metals and their distribution in the study area were analyzed. Migration patterns of heavy metals in crops from different sources were investigated using Pearson correlation and redundancy analysis. Finally, a predictive model for heavy metals in wheat grains was developed using multiple linear regression analysis. Significant disparities in the distribution of heavy metals existed among wheat roots, stems, leaves, and grains. The coefficient of variation of heavy metals in atmospheric deposition was relatively high, indicating discernible spatial patterns influenced by human activities. Notably, a positive correlation was observed between the concentration of heavy metals in wheat grains and atmospheric deposition of Hg, Cd, and Pb. Conversely, Zn and Ni levels in wheat grains were significantly negatively associated with soil Zn, Ni, pH, and OM content. The contribution of heavy metal elements from different sources varied in their impact on the grain's heavy metal content. Specifically, atmospheric deposition was the primary source of Hg and Pb in wheat grains, while Cd, Ni, Cu, and Zn were predominantly derived from soil. Using a multiple linear regression model, we could accurately predict Hg, Pb, Cd, Ni, Zn, and As concentrations in crop grains. This model can facilitate quantitative evaluation of ecological risk of heavy metals accumulation in crops in the study area.

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Study on inverse geochemical modeling of hydrochemical characteristics and genesis of groundwater system in coal mine area – a case study of Longwanggou Coal Mine in Ordos Basin

Cited by 4 publications

References 42 publications

Study on the Genetic Mechanism of Carbonate Rock Type Hot Mineral Water─A Case Study of Diaozhen, Jinan

Study on the Genetic Mechanism of Carbonate Rock Type Hot Mineral Water─A Case Study of Diaozhen, Jinan

Hydrogeochemical characterization and human health risks associated with groundwater nitrate concentrations in the Saiss basin, Morocco

Transport characteristics of heavy metals in the soil-atmosphere-wheat system in farming areas and development of multiple linear regression predictive model

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