| Abstract |
The study area, Ilan Plain of Taiwan, is covered by Holocene alluvium sediments, ranging from 100 to 1200 meters. This study collected samples from four boreholes, the SanXin-BH01 (602m), JeiYuan-BH01 (1438m), HTL01 (2200m) and HTL02 (2800m), under the project of Taiwan National Energy Program-Phase II. JeiYuan-BH01, HTL01 and HTL02, mainly consist of slate, meta-sandstone, and meta-sandstone with cleavages, while SanXin-BH01 that only consists of slate. Illite, kaolinite, and chlorite are found in all samples c. The montmorillonite, however, exists in SanXin-BH01, JeiYuan-BH01, and HTL02 except HTL01. According to the results of previous studies, the montmorillonite may serve as an indication of geothermal potential area particularly in the low-grade metamorphic rock. With it we have identify the existence of geothermal potential in the area of SanXin-BH01, JeiYuan-BH01, and HTL02. |