Distribution and Impact Factors of High Fluorine Groundwater in Northern Yanchi County
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
With the construction of the Ningdong energy chemical base, water quality research of groundwater in the water supply source area of the energy base reserve area is of predominant significance. Based on the analysis of fluorine contents in 86 groundwater samples of different depths in the aquifers of northern Yanchi, the spatial distribution of groundwater with high fluorine was investigated, and its impact factors were also discussed, including the topography and geomorphology, formation lithology, hydrogeological conditions, and water chemical characteristics. The results showed that (1) the horizontal distribution of fluoride content is controlled by topography and physiognomy, with higher fluorine content in the ditch while lower fluorine content in the eolian sand area; (2) the vertical distribution of fluorine content is controlled by alternate rate of groundwater cycle, and therefore the Quaternary eolian sand aquifer and 100-200 m aquifer of upper Huanhe formation of Cretaceous have low fluorine content due to fast alternate rate; (3)higher fluoride content in the sandstone and mudstone of upper Huanhe formation of Cretaceous is the direct cause of high fluorine groundwater. Strong evaporation and salt accumulation in the ditch can cause the formation of high fluorine water; and (4) higher TDS, SO4?Cl—Na type, and alkalescent water is beneficial to the accumulation of fluorine.
Keywords:
Project Supported:
Clc Number:
Mobile website
® 2024 All Rights Reserved
冀公网安备13010502002656号
冀公网安备13010502002656号