ナショナルジオグラフィックのインスタグラム(natgeo) - 2月10日 16時10分

Photo by @shonephoto (Robbie Shone) - We're here in Nevada with scientists from the University of Innsbruck, Austria to drill core samples from calcite deposited on the walls of Devils Hole #2 cave in Ash Meadows close to Death Valley. The calcite, known as mammillary calcite, has been depositing out of the water for hundreds of thousands of years. Analysis of the calcite will enable the scientists to construct a record of past changes in the climate in this area. Here, Dr. Yuri Dublyansky drills a core sample underwater using a custom made drilling set-up.

[BIHAKUEN]UVシールド(UVShield)

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