| Cover Story |
| Numerical simulation of turbidity current by open source software "turb2d" |
| -- Hajime Naruse -- 54 |
| |
| Research Reports |
| The Kellwasser Events in the Upper Devonian Xom Nha Formation, Central Vietnam |
| -- Ryo Matsuo, Toshifumi Komatsu, Hiroki Matsuda, Takumi Maekawa, Toshitaka Inada, Reishi Takashima, Toshihiro Yamada, Mark Williams, Phong Duc Nguyen, Hung Dinh Doan, Hung Ba Nguyen and Minh Trung Nguyen -- 55-75 |
| Organic geochemical studies on mudrocks from the Upper Cretaceous Himenoura Group with oil seepage in Himedo Town, Kami-Amakusa City, Kumamoto Prefecture, southwest Japan |
| -- Nguyen -- 77-89 |
| |
| Note |
| Application of Canny edge detectinon for extracting outline image of clastic grains and its automation method |
| -- Yuya Mukaizato and Tohru Ohta -- 91-100 |
| |
| Conference Reports |
| A report on 9th International Conference on Asian Marine Geology |
| -- Tomoyuki Sato -- 101-106 |
| A report on the 2019 Tsunami Deposit Workshop |
| -- Kenta Minamidate and Masaki Yamada -- 107-110 |
| A report on the IAS field trip "Microbial carbonate reservoirs architecture: From depositional facies to seismic scale geometries in the Triassic of the Dolomites (Italy)" |
| -- Tenichi Cho -- 111-115 |
| A report on the Field Seminar of the Sedimentological Society of Japan, 2019 "Depositonal facies and sequence stratigraphy of shallow marine deposit" |
| -- Yuka Ishihara, Natsumi Itomoto and Ryo Hayashizaki -- 117-121 |
| Book Review |
| -- -- 123-125 |
| |
| Announcement |
| -- -- 127-131 |
| |
