Abstract
Remote sensing investigations combined with Geographical investigation systems (GIS) provide a rapid and cost-effective method for prospecting hydrothermal and geothermal systems. Most geothermal systems in Kenya are found in remote areas where accessibility is difficult. This study was carried out on Paka volcano which is located in the Kenyan rift valley. The aim of the study was to use remote sensing and GIS to investigate hydrothermal minerals and structures associated with geothermal activities. The study involves use of Landsat TM image classification using ENVI 5.1 and ArcGIS. Lineament extraction was done using PCI geomatics 2015 while Rose diagrams were generated using Rockworks 16. The research has shown that lithological, hydrothermal mineralization and structural maps can be generated form Landsat TM images using remote sensing and GIS. It has been shown that faults trend in the Northeast, North and Northwest direction. Hydrothermal minerals that are rich in iron and clays occur on Paka volcano mountain and its neighbouring areas.
Highlights
The effects of climate change and unpredictable weather patterns have affected hydro-power generation in Kenya
This study was carried out on Paka volcano which is located in the Kenyan rift valley
The presence of magma chamber is an indication that a heat source is present that drives the geothermal system under Paka volcano
Summary
The effects of climate change and unpredictable weather patterns have affected hydro-power generation in Kenya. This has influenced the strategies in the power sector towards stimulating growth and development of geothermal ener-. Geothermal exploration in Kenya started in the 1960s with the drilling of two geothermal wells in Olkaria [1]. This research shows how remote sensing images can be used to map hydrothermal minerals and entire geology during reconnaissance or the detailed mapping of an area to lower the cost of geothermal exploration [2]. Inaccessible, or with very rugged terrains can be explored using remote sensing technique. Geothermal mineral indicators include: hydrothermal alteration (clays and sulfates), sinter, tufa (carbonates) and thermal anomalies [4]
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