Study of thermal water resources in Sri Lanka using time domain electromagnetics (TDEM)

Deepal Subasinghe Nalaka, Bandara Nimalsiri Thusitha, Buddhika Suriyaarachchi Nuwan, Hobbs Bruce, Fonseka Morrel, Dissanayake Chandra

Research output: Contribution to journalConference paperpeer-review

1 Citation (Scopus)

Abstract

Thermal springs can be utilized as an environmental friendly source of renewable energy, as well as for other purposes. Time domain electromagnetic (TDEM) method is used as an accessory tool in geothermal exploration to investigate the local heterogeneities in geology. The study consists of two of the thermal springs in Sri Lanka, Wahawa and Mahaoya, both in the same crustal unit. Major structural discontinuities of the area vary between two peculiar fracture sets striking ENE and NW. Close relationships between these individual springs have been witnessed by their approximate major cation chemistries, which provoke the idea of geochemical provinces. Survey reveals the pathways of the heated water to the surface, at Wahawa, although the path is not clear at Mahaoya. Near surface resistivity diagrams can be used only to interpret the immediate depths of the springs. The expected structural relationships may be identified with a grid of TDEM soundings encompassing both the spring systems.

Original languageEnglish
Pages (from-to)3198-3201
Number of pages4
JournalAdvanced Materials Research
Volume955-959
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event3rd International Conference on Energy and Environmental Protection, ICEEP 2014 - Xi'an, China
Duration: 26 Apr 201428 Apr 2014

Keywords

  • Electromagnetics
  • geothermal water
  • Sri lanka

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