| सारांश: | <p>53 of 69 rock samples collected in the Lodwar region (Turkana County, Kenya) in February to June 2018 were processed and analysed to assess their chemical composition. The samples were finely ground and analysed for major elements including Na, Mg, Al, P, S, K, Ca, Fe, and Mn, as well as trace elements such as Ti, Cr, Co, Ni, Cu, Zn, As, Se, Mo, and Pb. The analytical work was conducted at the International Centre of Agriculture and Forestry (ICRAF) laboratory using X-ray diffraction (XRD) techniques. To ensure the accuracy and reliability of the results, quality control measures included meticulous sample grinding, calibration of XRD instruments, and the use of certified reference materials. This dataset provides valuable insights into the elemental composition of the rock samples, which is crucial for understanding their potential influence on groundwater quality in the region. </p>
<p>The XRD analysis facilitated the identification of key minerals present in the rock samples, such as feldspars, micas, and oxides. These minerals are critical for understanding the geochemical behavior of the rocks. Their presence and abundance influence the weathering processes and the subsequent release of elements into groundwater. For example, high concentrations of feldspar can lead to increased levels of potassium and sodium in groundwater, while the presence of iron oxides can impact water coloration and quality. This dataset provides additional insights into the mineralogical and elemental composition of the rocks, which is crucial for predicting their impact on groundwater quality and understanding the potential geochemical interactions within the region.</p>
<p>Related publications include: </p>
<p>Tanui, F., Olago, D., Dulo, S., Ouma, G. & Kuria. Z. (2021). Petrography and Geochemistry of the Rocks in Lodwar, Kenya and their Influences on Groundwater Quality. Africa Journal of Physical Sciences Vol. 6, pp. 15-44. https://uonjournals.uonbi.ac.ke/ojs/index.php/ajps/article/view/1026/932 (https://ora.ox.ac.uk/objects/uuid:775da78c-a7a7-47bf-b296-9ac5e88948f7); Tanui, F. (2021).</p>
<p>Tanui, F. (2021). Characterization of the Hydrogeology of the Lodwar Alluvial Aquifer System, Turkana County, Kenya. A thesis submitted in fulfilment of the requirements for the award of the degree of Doctor of Philosophy in Geology of the University of Nairobi. http://erepository.uonbi.ac.ke/handle/11295/157075</p>
<p>Tanui, F., Olago, D., Dulo, S. Ouma, G., & Kuria, Z. (2020). Hydrogeochemistry of a strategic alluvial aquifer system in a semi-arid setting and its implications for potable urban water supply: The Lodwar Alluvial Aquifer System (LAAS), Groundwater for Sustainable Development, Volume 11. https://doi.org/10.1016/j.gsd.2020.100451</p>
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