Journal
JOURNAL OF AFRICAN EARTH SCIENCES
Volume 134, Issue -, Pages 292-298Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jafrearsci.2017.07.003
Keywords
ERT; IP; VES; Geothermal; Hot spring; Hammam Sayala (NW Tunisia)
Categories
Funding
- Water Researches and Technologies Center Borj-Cedria (CERTE, Tunisia) - national research project entitled Characterization and valorization of local mountainous micro-aquifers and thermal potential in the Northwestern Tunisia, CERTE/MEREST
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The following work is an attempt to enhance and optimize the potential exploitation of the Hammam Sayala thermal spring (NW Tunisia). This hot spring is located at 10 km of South-western Beja city, with higher temperature values around 42 degrees C and a low discharge value of about 1.1 s(-1). The geological and structural settings of the study area are complex and associated with faults and Triassic intruded salt and evaporate. An integrated geophysical approach using Electrical Resistivity Tomography (ERT), Induced Polarization (IP) and Vertical Electrical Sounding (VES) techniques can provide a high-resolution subsurface image of the principal geothermal plume and associated pathways. These data were used to determine and understand the mechanisms responsible of the rise of hot water flowing out onto the surface. Our results add new information of the hydrothermal system's context in Hammam Sayala area, which can help to create a therapeutic center opening new perspectives in the Beja region and to encourage regional thermal tourism development. (C) 2017 Elsevier Ltd. All rights reserved.
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