| Cover Story |
| Braided stream of the lowest reach of the Hiikawa River, eastern Shimane, Japan |
| -- Tetsuya Sakai -- 60 |
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| Research Report |
| Soil properties of subsurface sediments collected from shallow gas hydrate province in the eastern margin of the Japan Sea |
| -- Shinsuke Aoki, Shu Kyono, Takeshi Oi, Satoko Owari, Fumio Akiba, Hiroyuki Ochiai, Hitoshi Tomaru, Kosuke Noborio and Ryo Matsumoto -- 61-75 |
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| Field Guide |
| Excursion of the geology and topography of Ueda basin prospered the Sanada family |
| -- Koichi Hoyanagi and Naomi Murakoshi -- 77-99 |
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| Conference Reports |
| A report on the 2017 special field trip by the Japanese Association for Petroleum Technology |
| -- Mizuki Ishida -- 101- 104 |
| A report on the School of Sedimentology 2017 entitled "Quaternary coral reef sediments and tectonic movement" |
| -- Masaki Yamada, Toshifumi Taki and Tomoyuki Sato -- 105-112 |
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