Category Archives: geology

Huge amount of water in Earth’s mantle (2)

In a previous post (4 years ago) I brought your attention to the existence of huge amount of water in Earth’s mantle. Quanta magazine recently reported on the latest news on this front: The Hunt for Earth’s Deep Hidden Oceans. … Continue reading

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Update on how Earth’s magnetic field is changing

The European Space Agency (ESA) has a trio of satellites known as SWARM that studies Earth’s magnetic field. “Launched in 2013, the trio of Swarm satellites are measuring and untangling the different magnetic fields that stem from Earth’s core, mantle, … Continue reading

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How long astronauts stayed on the moon?

Image credit I have watched the documentary titled “The Last Man on the Moon” which is a documentary about the life of the astronaut Eugene A. Cernan. I did not know that Gene Cernan and the geologist astronaut Harrison H. … Continue reading

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Recent changes in Earth’s magnetic field

Image credit According to geologic record in the minerals, Earth’s magnetic dipole polarity reversed many times during the planet’s 4.5 billion year history. The average time between reversals is 250 thousand years.  There were no reversals in the last 780 … Continue reading

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Black Sea Deluge

I was born in a small town by the Black Sea. It was a coal mining town. There were breath-taking views from the plateau on top of the hills where every one lived. Nobody lived at the sea level. The … Continue reading

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