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Self-potential and soil temperature profiling: Case study of Tavua hot spring, Fiji

Lal, Alvin and Deo, Ravin N. and Kumar, Ajal and Raturi, Atul K. (2015) Self-potential and soil temperature profiling: Case study of Tavua hot spring, Fiji. [Conference Proceedings]

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Studies on hot spring regions in Fiji have been conducted by several workers such as (Cox 1982), (Healy 1960) and (Autar 1996). These studies identified several distributions patterns that require further investigation and analysis. There are almost no published works continued from the efforts of previous workers. In the present work, a geophysical investigation of a hot spring was conducted using advanced geophysical techniques to build upon conclusions from preceding works. The Tavua hot spring site, located in northern Viti Levu within the Nakauvadra range was investigated using several geophysical techniques. Self-potential (SP) and soil temperature profiling were carried out within the hot spring. The SP study provided useful information on subsurface fluid flow, clearly delineating upward and downward flows. Good correspondence between SP and soil temperature was also observed. Other hydrological parameters viz., discharge rate and outflow water temperature were evaluated to determine the energy flux of the hot spring. The present methodological study aims to a) investigate the distribution of various geophysical parameters within this area, and b) provide a baseline investigation so that feasibility of further detailed explorations can be determined. To our knowledge, there is no recent published literature concerning geophysical studies on hot springs making this the first of its kind investigation in Fiji.

Item Type: Conference Proceedings
Subjects: Q Science > QE Geology
T Technology > TD Environmental technology. Sanitary engineering
Divisions: Faculty of Science, Technology and Environment (FSTE) > School of Engineering and Physics
Depositing User: Atul Raturi
Date Deposited: 13 Mar 2017 02:57
Last Modified: 13 Mar 2017 02:57

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