(Fig. VIII-1-14, Page 107-120) Visual characteristics of manganese nodules on bottom photographs collected in the Pacific Ocean during cruise GH77-1 of R/V Hakurei Maru

Deep sea photographs in the GH77-1 cruise were obtained by two methods, namely a one-shot 16 mm camera attached to the freefall (boomerang) type photo grab and an independent 35 mm deep sea camera.

GH77-1航次所获深海摄影照片采用两种方法采集：其一为搭载于自由下落式（回旋镖型）摄影抓取装置（freefall (boomerang) type photo grab）的单次拍摄型16毫米相机，其二为独立式35毫米深海相机。