Application of the SP technique over Lagadas low enthalpy geothermal field, Greece

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Geothermics (International Journal of Geothermal Research and its Applications); (United States)

DOI:https://doi.org/10.1016/0375-6505(90)90049-H· OSTI ID:5633649

Thanassoulas, C; Lazou, A ^[1]

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1. Inst. of Geology and Mineral Exploration, Dept. of Geophysical Research, 57 Messoghion Avenue, Athens 115-26 (GR)

This paper reports that in order to verify the applicability of the SP gradient method as a tool for geothermal exploration, Lagadas low enthalpy geothermal field was used as a test site. A total of 63 lines km was surveyed using SP gradient method along 10 profiles covering the main geothermal field area. The complied SP map correlates in a satisfactory was with other geological and geophysical information available. Detected SP anomalies were inverted to causative polarized planes and their relationship with existing deep fractures in the basement is investigated. As a result, two main fracture zones were detected, which were electrically polarized, and coincide with already known similar tectonic features identified by other geological and geophysical methods. Circulation of hot water in deep permeable fracture zones is considered to be the originating mechanism of the observed SP anomalies.

• OSTI ID: 5633649
• Journal Information: Geothermics (International Journal of Geothermal Research and its Applications); (United States), Journal Name: Geothermics (International Journal of Geothermal Research and its Applications); (United States) Vol. 19:3; ISSN GTMCA; ISSN 0375-6505
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150301* -- Geothermal Exploration & Exploration Technology-- Geophysical Techniques & Surveys
DEVELOPING COUNTRIES
ENTHALPY
EUROPE
EXPLORATION
FRACTURED RESERVOIRS
GEOPHYSICAL SURVEYS
GEOTHERMAL FIELDS
GREECE
PHYSICAL PROPERTIES
SURVEYS
TEMPERATURE GRADIENTS
THERMODYNAMIC PROPERTIES