Advance report of DH-14 borehole investigations

The Regional Hydrogeological Study (RHS) Project, which commenced in 1992, has been performed in the 10 km-square area. It was intended for the development of an understanding of the geological environment at the regional and local scale. The DH-14 borehole was drilled to develop the techniques of evaluations for the large-scale lineaments whose presence have been observed in the northeast region of Regional Hydrogeological Study project. This advance report summarized to familiar the results of borehole investigations to person interested and to evaluate preliminary issues. Interpretations and conclusions described in this report will be revised depending on the progress of analytical works. (author)