黄河断裂灵武段土壤气地球化学特征分析
Analysis of Soil Gas Geochemical Characteristics in the Lingwu Section of the Yellow River Fault
DOI: 10.12677/ag.2025.158117, PDF,    科研立项经费支持
作者: 王晓涛, 贺嘉伟：宁夏回族自治区地震局，宁夏 银川
关键词: 黄河断裂；断层土壤气；地球化学特征；浓度强度；Yellow River Fault； Fault Soil Gas； Geochemical Characteristics； Concentration Intensity
摘要: 本研究测量了黄河断裂灵武段观测点的CO2、Rn和Hg浓度及其通量，结果显示该区域土壤气浓度强度具有一定的分布特征，整体呈现北低南高的分布特征。另外，银川地堑南段的大部分破坏性地震均分布在黄河断裂灵武段西侧附近，且自北向南呈递增趋势。黄河断裂灵武段北段活动性较弱，中至南段活动性较强，这与该地断层气浓度强度空间分布特征相吻合。
Abstract: In this study, the concentrations and fluxes of CO₂, Rn, and Hg in the observation points of the Lingwu section of the Yellow River Fault were measured. The results show that the soil gas concentration intensity in this area has certain distribution characteristics, generally presenting a pattern of lower in the north and higher in the south. Additionally, most destructive earthquakes in the southern segment of the Yinchuan Graben are distributed near the western side of the Lingwu section of the Yellow River Fault, showing an increasing trend from north to south. The northern segment of the Lingwu section of the Yellow River Fault has weak activity, while the middle to southern segments have strong activity, which is in good agreement with the spatial distribution characteristics of fault gas concentration intensity in this area.
文章引用：王晓涛, 贺嘉伟. 黄河断裂灵武段土壤气地球化学特征分析[J]. 地球科学前沿, 2025, 15(8): 1245-1264. https://doi.org/10.12677/ag.2025.158117

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