Relationship between Groundwater Resources and Quaternary Faults of Sirjan Plain Using Weight of Evidence Method

• Main Authors: ali mehrabi, mohsen pourkhosravani
• Format: Article
• Language: fas
• Published: Afarand Scholarly Publishing Institute 2019-04-01
• Series: تحقيقات جغرافيايی
• Subjects: faults; groundwater resources; weight of evidence method; sirjan plain
• Online Access: http://georesearch.ir/article-1-660-en.html
• ISSN: 1019-7052; 2538-4384

Aims & Backgrounds: The faults and tectonic structures have a major effect on groundwater resources. They create aquifers and control their path. Determination of the relationship between faults and groundwater resources can help to identify the new water resources. This study aimed to investigate the relationship between faults and groundwater resources of Sirjan plain, numerically. Methodology: The 1 km buffers around the faults were extracted using the weight of evidence method through providing the quaternary fault layer and the position of Qanats and wells of the Sirjan plain by GIS 8.0 software. In the next step, by performing the operation of overlaying of the Qanats and wells with the faults layer, the coefficients of weights of evidence method were calculated. Findings: The most correlation between the wells and faults was in the 1 km distance from the strike fault and the major correlation between the Qanats and faults was within 2 km distance from the strike fault. 65% of deep and semi-deep drilled wells in the Sirjan plain were affected by faults, while only 24% of the Qanats in this region were related to the faults. Conclusion: The quaternary faults have the nutrition potential of groundwater aquifers of Sirjan plain considering the arid and semi-arid climatic and geographic conditions of Sirjan plain, and increasing needs for water resources.