geology

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litlanesfoss volcano waterfall science geology - 7156143616
Via Kottke
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This is an Icelandic waterfall called Litlanesfoss and the naturally occurring rock formation is columnar jointed basalt.
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earth geology Holocene science - 8351177216
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Via The Guardian:

A disparate group of experts from around the world will meet for the first time on Thursday for talks on what must rank as one of the most momentous decisions in human history.

The question confronting the scientists and other specialists is straightforward enough, even if the solution is far from simple. Is it time to call an end to the epoch we live in and declare the dawn of a new time period: one defined by humanity's imprint on the planet?
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By Unknown
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It's a "build your own volcano" kit like no other. A team of geologists in Germany has built a model volcano that crackles with lightning as it erupts. But this is no toy science kit for kids – it could offer insights into the disruption risk to aircraft in the aftermath of an eruption.