Polonnaruwa District

Springs of Sri Lanka

Nelumwewa Hot Springs

Nelumwewa Thermal Springs or Nelumwewa hot water springs (Sinhala: නෙළුම්වැව උණුදිය උල්පත්) site is one of the major geothermal springs areas in Sri Lanka and is located in Nelumwewa in Polonnaruwa District. Hot water springs Geothermal springs are the natural springs that contain hot water (Piyadasa & Ariyasena, 2011). Commonly, thermal springs in the world are associated with volcanic terrain but the hot springs located in Sri Lanka are not related to volcanic activities as the island is not in an active volcanic or tectonic region (Piyadasa & Ariyasena, 2011; Premasiri et al., 2006). Therefore, the waters can get heat either from subsurface heat sources such as large bodies of hot rocks or through deep percolation under the geochemical gradient of the earth (Adikaram & Dharmagunawardhane, 2013). If these waters find weak structural discontinuities leading upward they rise to the surface and emerge as naturally discharging hot water springs (Piyadasa & Ariyasena, 201…

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