Collecting and organizing data on the distribution of volcanic rock dikes to understand the range of magma related to volcanic and igneous activity

Kawamura, Makoto*; Nishiyama, Nariaki  ; Jia, H.*; Ishikawa, Taiki*; Koizumi, Yukiko*

In site selection and safety assessment for geological disposal, dikes observed in the field are important targets for evaluating the extent of the influence of volcanic and igneous activity. Dikes have often been shown on geological maps in previous studies, so it may be possible to understand their distribution to some extent. We extracted "dikes" from the geological maps on a GIS and attempted to organize them by geological era. In this presentation, we will report on the status of data collection and preparation. The data will not only provide basic information for evaluating the relationship with Quaternary volcanoes, but is also expected to be academically useful, such as for understanding volcanic activity that occurred before the Quaternary Period.