How an Island Is Made / Former Nobuka

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Geoscience and Geoscience
Bluebacks / The appearance of a new fire Yamajima, which is rare in the world, is a treasure trove of research materials that know the island and the Earth. In 2013 in the Ogasawara Islands, the island that was created by the eruption off the old Nishinoshima became bigger and bigger, and it is growing by swallowing the old Nishinoshima. It has been introduced in news videos and other media. As a precious place where you can see the process of the island's formation, researchers in various fields are paying attention to it. In this book, the author, who has conducted landing surveys of many islands including Nishinoshima, explains what you can only see on newly created islands, the dynamism of the Earth from there, how Nishinoshima can change in the future, etc. In addition to Nishinoshima, characteristic islands in Japan and overseas are also introduced on geological phenomena in the process of eruption and growth. In the first half, we focus on what phenomena are occurring from the birth to the growth of islands, and in the second half, we focus on the process from the maturation of islands to the collapse of islands and give examples of various islands.