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Geosites

2.(Ebisuhama fishing port) pillow lava (wind up)

Pillow lava

Rock of form that totally piled up pillow

It is along the shore around Ebisu beach fishing port and can look at "pillow lava" (we wind up).

Pillow lava

Pillow lava

When lava flows out underwater, the surface contacting with water gets cold suddenly, and the inside still curls up for high temperature. Rock that things which get cold, and freeze, and were made pile up in sequence is called "pillow lava" (we wind up).
"Pillow lava" shows that lava flowed out by volcanic activity that happened in the bottom of the sea of about 130 million years ago (the Cretaceous in the first half of the Mesozoic) now underwater.
In addition, rock called "dyke" (dyke) which magma goes through the underground in rocky place of specific difference nature lawn place, and hardened in the letter of pulse is left.

Pillow lava

"Dyke" (dyke) which ran through the underground, and hardened in the letter of pulse

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