A Geology lesson in a single image

February 9th, 2014

Faults in Xinjiang:

Faults in Xinjiang : Image of the Day

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World of Change

September 29th, 2013

NASA's Earth Observatory posted a slideshow depicting Devastation and Recovery at Mt. St. Helens:

The 1980 eruption of Mt. St. Helens, which began with a series of small earthquakes in mid-March and peaked with a cataclysmic flank collapse, avalanche, and explosion on May 18, was not the largest nor longest-lasting eruption in the mountain's recent history. But as the first eruption in the continental United States during the era of modern scientific observation, it was uniquely significant.

In the three decades since the eruption, Mt. St. Helens has given scientists an unprecedented opportunity to witness the intricate steps through which life reclaims a devastated landscape. [...]

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World earthquakes 2011 Visualisation map

February 6th, 2012

It's one thing to be intellectually aware of the fact that there are thousands of medium-to-large magnitude earthquakes around the world each year, quite another to see their frequency, magnitude and location plotted in animated form, in great detail. It brings home just how fortunate I am to be living on a small, geologically stable island nation off the coast of the continent of Europe.

[Via Chocolate and Vodka]

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April 17th, 2011

In 1962, Michel Siffre had an idea:

In 1962, you were just twenty-three years old. What made you decide to live underground in complete isolation for sixty-three days?

You have to understand, I was a geologist by training. In 1961, we discovered an underground glacier in the Alps, about seventy kilometers from Nice. At first, my idea was to prepare a geological expedition, and to spend about fifteen days underground studying the glacier, but a couple of months later, I said to myself, "Well, fifteen days is not enough. I shall see nothing." So, I decided to stay two months. And then this idea came to me – this idea that became the idea of my life. I decided to live like an animal, without a watch, in the dark, without knowing the time.

Instead of studying caves, you ended up studying time.

Yes, I invented a simple scientific protocol. I put a team at the entrance of the cave. I decided I would call them when I woke up, when I ate, and just before I went to sleep. My team didn't have the right to call me, so that I wouldn't have any idea what time it was on the outside. Without knowing it, I had created the field of human chronobiology. [...]

[Via longform.org]

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