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Friday, October 14, 2011

"100,000-Year-Old Shell" Found In Oldest Art Studio

It has been discovered that a coating of bright red powder on the insides of a pair of 100,000-year-old abalone shells is evidence of the oldest known art workshop.

The powder was found inside two shells in Blombos Cave near Still Bay, South Africa (map). The substance is the dried remains of a primitive form of paint made by combining colorful clay called ochre, crushed seal bones, charcoal, quartzite chips, and a liquid, such as water.

"A round [stone] covered the opening of one of the shells, and underneath it was absolutely bright red," said study leader Christopher Henshilwood, an archaeologist at the University of Bergen in Norway and the University of the Witwatersrand in South Africa.

In addition to the shells, the team also found grindstones, hammerstones, the remains of a small fire pit, and animal bones that were used to transfer small amounts of the paint.

Blombos Cave has been inhabited off and on by humans for at least 140,000 years, but the ochre-paint studio seems to have been active about 100,000 years ago. Prior to the new discovery, the earliest known ochre-making workshop was 60,000 years old, Henshilwood said.

The discovery is also proof that early humans were capable of long-term planning and had at least a rudimentary knowledge of chemistry, according to the study authors.

"They also knew to add charcoal to the mixture to bind and stabilize it, and a little bit of fluid, which could have been water or seawater or urine."

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