Abstract

Studies have been carried out to assess groundwater potential using geophysical analysis and water quality indices in parts of Nyalkal and Zaheerabad Mandal, Medak District, Telangana State. As a part of the study, 50 groundwater samples were collected and 103 Vertical Electrical Soundings (VES) had been carried out. The water quality was assessed with respect to various major ion chemistry and trace elements. It is found that major ions and trace elements are within the permissible limits, except Al, Pb, and Zn metals, which slightly exceeded beyond permissible limits. However, the results of VES reveal that in some parts of the study area, the resistivity range for topsoil (26.61–930 Ωm), lateritic zone (453–738 Ωm), clayey/sandy clay layer (4.71–94.2 Ωm), weathered/fractured bedrock (60.5–928 Ωm) and weathered/vesicular/massive basalt (8.05–676 Ωm) are found with the formation of thick overburden and fractured basement. It is also found that the groundwater prospects are moderate to high depending on the extent of the weathering zone.

Research Highlights

• Geophysical investigations were carried out to decipher the aquifer geometry and potential zones.

• Groundwater quality for major and trace elements were carried out and compare with WHO standards.

• An integrated analysis was made for sustainable development of groundwater resources.

中文翻译：

---

印度特兰甘纳邦西北部地下水资源可持续发展的地球物理和水化学研究

摘要

使用地球物理分析和水质指数对Telangana州Medak区Nyalkal和Zaheerabad Mandal的部分地区进行了评估地下水潜力的研究。作为研究的一部分，收集了50个地下水样品，并进行了103次垂直电测深（VES）。评估了各种主要离子化学和痕量元素的水质。发现除了Al，Pb和Zn金属外，主要离子和微量元素都在允许的范围内，Al，Pb和Zn金属略超过允许的范围。但是，VES的结果表明，在研究区域的某些区域中，表土（26.61–930Ωm），红土带（453–738Ωm），黏土/砂质粘土层（4.71–94.2Ωm）的电阻率范围已风化/破裂的基岩（60.5–928Ωm）和风化的/囊状/大量玄武岩（8。厚度为05–676Ωm），形成了厚覆盖层和基底破裂。还发现，取决于风化带的范围，地下水前景是中等到较高的。

研究重点

• 进行了地球物理研究以破译含水层的几何形状和潜在带。

• 进行了主要和微量元素的地下水质量，并与世界卫生组织的标准进行了比较。

• 对地下水资源的可持续发展进行了综合分析。