2015-01-012024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/702292摘要：地熱的開發利用可以分為幾個階段，早期的探勘調查是相當重要的一個步驟，會直接影響到之後地熱開發的效益，而地球化學方法便是其中一個相當重要的調查方式。地球化學探勘方法主要為採集調查區內的水、氣、以及沉積物樣品進行各式分析，包括成分組成以及同位素特徵等，並且進一步使用地化溫度計來推算深部溫度。藉此研判地熱水在深部的可能狀況，確定地熱流體品質，作為之後開發利用的參照資料。台灣位於環太平洋火山活動帶西緣，北部大屯火山區至今仍然有相當活耀的地熱活動，是台灣地區的主要地熱區之一。過去十幾年間對大屯火山地區有相當多的研究，然而這些研究的主要目的為監測火山活動。此次與義大利團隊合作，該團隊在火山及地熱區的地球化學研究已行之有年，是世界上頂尖的研究團隊之一。本次在基於地熱資源勘查的原則之下，雙方將於大屯火山地區內採集火山氣體和溫泉標本，進行無機、有機物，以及同位素組成的調查分析。同時，派遣人員至義大利學習採樣分析技術，並採集義大利境內數個火山區和熱液區與大屯火山地區相互比較。希望藉由兩年的資料可以定義以及首次評估台灣本島北部的部分的地熱潛力，並提供大屯火山區未來地熱資源開發的總體評估。<br> Abstract: Geothermal energy is one of renewable energy, which is generated and stored in the Earth. The exploitation of geothermal energy can be divided into several stages. Using geochemical methods to investigate the geothermal reservoir is very important step to provide needed information for further exploration. We will apply these geochemical tracers (e.g., noble gases) and indicators (e.g., H2 , CH4 ) to estimate the temperature in deep and the geothermal energy emitted at the surface. Taiwan is located at the western edge of the circum-Pacific volcanic belt. Hydrothermal activity is very active in the Tatun Volcano Group (TVG) of northern Taiwan. It is one of the major geothermal areas. In the past decade, researchers in several institutions of Taiwan have done some volcanic studies in this area. However, the purpose of these studies is mostly for monitoring the potential volcanic activities. We will cooperate with the Italian group, who have been working on geochemical research in volcanic and hydrothermal areas for long time with very good reputation in the world. The gas and water samples will be collected from Tatun Volcano Group to analyze the chemical compositions and isotopic ratios. Meanwhile, we will visit Italian hydrothermal areas, like Larderello and Mt Amiata, to learn some more techniques about sampling and analysis for fluid/gas samples. We will compare the data from both areas and estimate the geothermal energy potential in the Tatun Volcano Group area.大屯火山地熱地球化學Tatun Volcano Geoupgeothermal energygeochemistry