alma mater. Lots of memories. Experiment, analysis...

alma mater. Lots of memories. Experiment, analysis, tennis and compa. Recently, I watched news about manganese nodules, hydrothermal deposits, and cobalt crust on TV, and recalled that I had heard about deep sea floor exploration and lectures on island arc volcanoes 30 years ago. I think that the faculty at that time were wonderful people who were already taught at that time about the possibility of mineral resources in the future in Japan. Speaking of mineral resources, when we had 20 students with rock hammers in front of the large outcrops of Yubari coal gathered to listen to the story, the museum in Yubari seemed to be worried from a distance. I had seen it. After that, Yubari City seems to have collapsed, but the coal outcrop has not collapsed and has not been destroyed. It is still the same time. We were students of the earth science department who had a rock hammer in his hand before the big outcrop and just listened to the teacher's lecture.