Takako Utsugawa

Sand grain producing-transport processes estimated from gravel-sand grain roundness on dams-constructed Tenryu River, central Japan

Deep marine sedimentation off the “huge-dam free” Shimanto river mouth, SW Japan: comparison with other Japanese rivers

Grain abrasion of gravel–sand in fluvial–beach systems: the case study of Tenryu River to Enshu Coast, central Japan

Influence of deposition in dam reservoir on the deep marine hemipelagic environment off Niigata, central Japan

Breaking and abrasion mechanisms revealed from lithological and roundness changes of gravel–sand grains in the Watarase River watershed, central Japan

Fluvial breaking and abrasion mechanisms acting upon gravel–sand grains utilizing the difference of grain lithology

Sand grain producing and transport processes in downstream reaches of the dams-constructed Tenryu River, central Japan

Slope failure of the Oya-Kuzure and generation of the Akamizu Fall, upper reaches of the Abe River, Shizuoka Prefecture

A report on the field trip of the 2014 annual meeting of the Sedimentological Society of Japan

Causes of gravel-sand distribution in upstream part of the river revealed from changes in lithology and form of detritus