[1]HU Xiaojing,FU Hong,ZHANG Xiang,et al.Hydrogeo Chemical Characteristics of Groundwater in Seismic Observation Wells in Zhaotong Area[J].Journal of Seismological Research,2020,43(04):630-637.
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Hydrogeo Chemical Characteristics of Groundwater in Seismic Observation Wells in Zhaotong Area
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
43
Number of periods:
2020 04
Page number:
630-637
Column:
Public date:
2020-09-17
- Title:
- Hydrogeo Chemical Characteristics of Groundwater in Seismic Observation Wells in Zhaotong Area
- CLC:
- P315.724
- DOI:
- -
- Abstract:
- In order to discuss the hydrogeochemical background seismic observation wells in Zhaotong area and provide basic support for judging seismic chemical anomalies of the groundwater,we collected 17 water samples from 12 seismic observation wells and 5 surface water bodies,tested and analyzed the chemical components and hydrogen and oxygen isotopes of groundwater. The results of water-rock balance results revealed that the groundwater in the Zhaoyang No.1 Middle school well was characterized with long and slow recharge process,strong water-rock reaction,meaning partial equilibrated water,the other observation wells were classified as immature water,which were characterized with short recharge process and weak water-rock reaction. The isotope data of hydrogen and oxygen indicated that most of the seismic observation wells in the study area were originated from the atmospheric precipitation,and there were slightly different in the recharge modes. The evolution of chemical compositions of groundwater showed that most seismic observation wells had not experienced new water-rock reactions since 2014 and were closely related to the flowing river by 100 m in hydraulic connection.
- References:
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Last Update:
2020-09-17