Tag: radiocarbon dating

DNA Analysis Confirms Skeleton of King Richard III

By Breanna Draxler | February 4, 2013 12:40 pm

Image courtesy of University of Leicester.

In their search for the lost grave of King Richard III, archaeologists unearthed a skeleton from underneath a parking lot last August. Today researchers announced that the skeleton is indeed that of England’s 500-year-deceased king, and they have the DNA and radiocarbon dating to prove it.

Richard III is most famous for the Shakespeare play of the same name, which was written a century after his death.  This English king reigned for just over two years, but his body was buried without record of its exact location. Researchers began digging up the vicinity of Greyfriars church in Leicester in 2011, and today’s announcement is the scientific evidence they needed to make their case for a definitive identification.

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CATEGORIZED UNDER: Environment, Top Posts

Humans Have Been Making Art for a Lot Longer Than We Thought

By Sophie Bushwick | June 21, 2012 8:30 am

Panel of Hands
One of the prints in El Castillo Cave’s Panel of Hands
was created more than 37,300 years ago.

A new study has revealed that Spain’s El Castillo Cave contains the oldest known cave paintings in Europe, with a handprint dating back 37,300 years and a red circle that was daubed onto the wall at least 40,600 years ago.

Instead of testing the paint’s age, a team of British and Spanish researchers measured the age of the stone that had formed around the drawings. In a cave, mineral-rich water drips over the walls, eventually depositing stalactites, stalagmites, and the sheet-like formations called flowstone. Some prehistoric artists had painted over flowstone made out of the mineral calcite, and then water flowed over the paint and deposited even more calcite, leaving the drawings sandwiched between mineral layers. The researchers used uranium-thorium dating to accurately determine the age of the mineral layers and therefore the window when the art itself was created; unlike the similar, more conventional carbon-14 method, uranium-thorium dating gives accurate results without damaging the subject.

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CATEGORIZED UNDER: Human Origins
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