Tag Archives: Arthur Holmes

Going on Four (Billion)

Posted on September 4, 2016 by

A paper published last week in Nature, claims that life began at 3.7 (billion years ago). This is the latest in a rather faltering progression of our best guesses of the date life started on Earth. Biblical literalists are still … Continue reading →

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Wegener’s Death and Drift’s Hiatus

Posted on February 7, 2016 by

Over the past few days, I’ve written about Alfred Wegener’s continental drift theory, which is celebrating its 100th year as a spunky idea that explains a lot of our geology. From mountains to earthquakes and deep sea rifts to island … Continue reading →

Posted in Biography, Culture, Exploration, Geology, People, Plate Tectonics | Tagged , , , , , , , , | 8 Comments

The Billion Year Discovery

Posted on September 16, 2014 by

About a century ago, a college student figured out that the Earth has rocks over a billion years old. Until Arthur Holmes’ experiments at Imperial College in London, geologists could only guess at the age of various rock formations. Geologist … Continue reading →

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