An Assessment Of Geosites In The Cretaceous Wido Volcanics.

The purpose of this paper is to suggest a possibility of the geosites of national geopark in the Cretaceous Wido Volcanics of Wi Island, Buan district. The volcanics consists of silicic to intermediated volcanic rocks and sedimentary rocks. We evaluate four geosites, such as reddish mudstone including dinosaur egg and pepertie (Site 1), rheomorphic lapilli tuff (Site 2), columnar joints in welded lapilli tuff (Site 3), and volcaniclastic rocks deposited by hyperpycnal flows (Site 4). The geosites have rarity, typicality and diversity and provide an opportunity to understand a variety of volcanic and sedimentary processes during pre-, syn- and post-volcanic activities, suggesting that they have the educational and academic values and play an important role for a potential national geopark in Gochang-Buan districts.