Lecture by Dr.Tsuneto (Part 2) (Geology of the Senkaku Islands) (Ryukyu Shimpo)

Lecture by Dr.Tsuneto (Part 2) (reviewed by Prof. Tsuneto)

Geology of the Senkaku Islands
The features of Okinawa Main Island, Miyako and Yaeyama are as previously described.
So from now, I should state a few observations on the Senkaku Islands.
This was a place about 100 miles north of Ishigaki Island in the Senkaku Islands, and although I only stayed in the area for no more than four or five days, based on my experience during that time the climate is generally somewhat colder than Sakishima at the corresponding time of year. (part omitted)
The geology of Minami and Kita Kojima Island belongs to the Tertiary rock formation. Thus there are no trees at all anywhere on the islands, with only grasses growing sporadically between the rocks. However, the excreta of flocks of birds (i.e. bird droppings) have accumulated between them, the smells are all mixed together and are almost unbearable. (part omitted) In some places significant accumulations of bird droppings were observed, and so, although the production volume could hardly be called limitless, if collected using a suitable method, it should be usable as a valuable raw material for fertilizer. (part omitted)