How & When Mt.Fuji appeared??
Mt.Fuji is a volcano, it got such a beautiful form going through 3 big eruptive activities. @The first eructation occurred from several hundred thousand years to several millions years ago. It made “Komitake volcano”, at a height of 2400 meters, indicated in blue mountain on the right side. Also some another eructation created “Ashitaka-Yama volcano”, indicated in orange. Human beings were still living as Cro-Magnon or Peking men at that time. @The second eructation occurred from several million years to 2 million years ago, which is “Ko-Fuji volcano”, that means old-Fuji volcano. This Ko-Fuji volcano was a mountain at a height of 2700 meters, indicated in green on the right side. At that time, our earth was right on the ace age. The muddy water and pyroclastic flows caused by Ko-Fuji (old Fuji) volcano are an impermeable layer, it became tasty natural spring water today. @The third eructation occurred about a million years ago, Shin-Fuji (New Fuji) volcano. In Japan, it was the middle
