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h1 title img:Geological Survey of Japan

Understanding and living with the Earth

Geological information is essential for a country like Japan, located at a tectonically active area, to ensure a safe and secure society. The Geological Survey of Japan gathers, compiles, and provides geological information and promotes its wider use. We also develop technologies to overcome various difficulties related to global environment protection, exploration of minerals and energy resources, and natural disaster mitigation, and coordinate international cooperation as a national representative.

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New Research Results

Likelihood of the Development of a Magnetic Field Immediately after the Earth’s Formation

AIST and others have shown the likelihood that the Earth had a magnetic field about 4.2 billion years ago. They have shown with a high degree of certainty that this magnetic field was recorded in zircon crystals that were formed immediately after the Earth’s formation.

Figure of new research results Geological Survey of Japan

The Earth’s atmosphere being stripped away by the solar wind

Insecticides Emerge as a Contributing Factor to the Decrease in Eels and Smelt

AIST conducted a survey of Lake Shinji in Shimane Prefecture. The results indicated the possibility that neonicotinoid insecticides used in rice paddies kill or otherwise harm the creatures on which eels and smelt feed, and thus indirectly caused the rapid decline in eels and smelt.

Figure of new research results Geological Survey of Japan

Transition in annual fisheries yield in Lake Shinji in Shimane Prefecture

Research Unit

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