Sapporo’s stone was ‘volcanic ash and pumice’—The 6 stages of the Shikotsu eruption and the ‘middle’ that became stone｜SparkBase11

In the video, I talked about how ‘Sapporo Soft Stone, used in Sapporo’s stone buildings, was born from the eruption of the Shikotsu Volcano about 40,000 years ago. It is not lava, but stone formed by …
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