Analisis Potensi Panas Bumi di Desa Sampiri Kabupaten Minahasa Utara Berdasarkan Data Manifestasi Permukaan
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Abstract
Energy needs have been increasing over time along with the increase in population and energy needs. Indonesia is one of the countries in the world that has enormous geothermal resource potential. This is because geologically, Indonesia is located in the Ring of Fire area, so it has the potential to produce geothermal energy, especially in North Sulawesi. This study aims to assess the geothermal potential in Sampiri Village, North Minahasa Regency. This study was conducted by analyzing fluid characteristics and estimating the temperature of the geothermal reservoir using geochemical methods and geothermometer calculations. The analysis was carried out through testing fluid samples in the laboratory, then data processing was carried out using Na-K and silica geothermometers and plotting a Na-K-Mg ternary diagram. The results of the analysis showed that the fluid type in Sampiri Village is immature water, indicating that the hot water in the study area has not reached equilibrium or has reacted with other elements on its way to the surface, with temperature estimation using a silica quartz geothermometer producing an estimated temperature of 250.1℃ - 261.2℃ indicating that this temperature is included in the high-type reservoir.
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